Date of Easter - Knowledge

2091:, which tells us which days are Sundays (more precisely, the dominical letter for the part of the year after February, which is different in leap years form the letter for January and February). (The golden number only matters when the epact is 25, as explained earlier.) If we go forward 3,230,000 years from a particular year, we find a year at the same point in the 400-year Gregorian cycle and with the same golden number, but with the epact augmented by 1. Therefore, in the long term, all thirty epacts are equally likely. On the other hand, the dominical letters do not all have the same frequency – years with the letters A and C (at the end of the year) occur 14% of the time each, E and F occur 14.25% of the time, and B, D, and G occur 14.5% of the time. Taking into consideration the complication having to do with epact 25, this gives the distribution shown in the second graph. April 19 is the most common because when the epact is 25 the ecclesiastical full moon falls on April 17 or 18 (depending on the golden number), and it also falls on these dates when the epact is 26 or 24, respectively. There are seven days on which the full moon can fall, including April 17 and April 18, in order for Easter to be on April 19 (this is also the latest possible Easter date that the ecclesiastical full moon can fall on a Saturday, as April 18 is the latest date for the ecclesiastical full moon, which Easter is next day if the ecclesiastical full moon is on a Saturday). As a consequence, 19 April is the date on which Easter falls most frequently in the Gregorian calendar, in about 3.87% of the years. 22 March is the least frequent, with 0.48%. 2063:, established that the first month of the ecclesiastical lunar year (the paschal month) should start between 8 March and 5 April inclusive, and the 14th day fall between 21 March and 18 April inclusive, thus spanning a period of (only) 29 days. A new moon on 7 March, which has epact label "xxiv", has its 14th day (full moon) on 20 March, which is too early (not following 20 March). So years with an epact of "xxiv", if the lunar month beginning on 7 March had 30 days, would have their paschal new moon on 6 April, which is too late: The full moon would fall on 19 April, and Easter could be as late as 26 April. In the Julian calendar the latest date of Easter was 25 April, and the Gregorian reform maintained that limit. So the paschal full moon must fall no later than 18 April and the new moon on 5 April, which has epact label "xxv". 5 April must therefore have its double epact labels "xxiv" and "xxv". Then epact "xxv" must be treated differently, as explained in the paragraph above. 2099:. By not labeling and counting the leap day with an epact number, but having the next new moon fall on the same calendar date as without the leap day, the current lunation gets extended by a day, and the 235 lunations cover as many days as the 19 years (so long as the 19 years do not include a "solar correction" as in 1900). So the burden of synchronizing the calendar with the moon (intermediate-term accuracy) is shifted to the solar calendar, which may use any suitable intercalation scheme, all under the assumption that 19 solar years = 235 lunations (creating a long-term inaccuracy if not corrected by a "lunar correction"). A consequence is that the reckoned age of the moon may be off by a day, and also that the lunations that contain the leap day may be 31 days long, which would never happen if the real moon were followed (short-term inaccuracies). This is the price of a regular fit to the solar calendar. 1873:. The ecclesiastical full moon falls 13 days later. From the table above, this gives a new moon on 4 March and 3 April, and so a full moon on 17 March and 16 April. Then Easter Day is the first Sunday after the first ecclesiastical full moon on or after 21 March. (This definition uses "on or after 21 March" to avoid ambiguity with historic meaning of the word "after". In modern language, this phrase simply means "after 20 March". The definition of "on or after 21 March" is frequently incorrectly abbreviated to "after 21 March" in published and web-based articles, resulting in incorrect Easter dates.) In the example, this paschal full moon is on 16 April. If the dominical letter is E, then Easter day is on 20 April. 2932:

so from 2100 to 2399 the differences will be 5, 6, or 35 days. The range of dates in the Gregorian calendar of the Eastern Paschal full moon moves one day later every time there is a solar correction, so from 2100 to 2199 it will be 5 April to 9 May. At present there are five years per cycle when the Eastern Easter is several weeks later than the Western, at golden numbers 3, 8, 11, 14, and 19. This will increase to six times per cycle in 2200 (adding golden number 6), to seven in 2300 (adding golden number 17), then go back to six in 2400 (lunar correction and no solar correction), back to seven in 2500, and go to eight only in 2900 (adding golden number 9).

717:) on or after 21 March. Easter is the Sunday after its 14th day (or, saying the same thing, the Sunday within its third week). The paschal lunar month always begins on a date in the 29-day period from 8 March to 5 April inclusive. Its fourteenth day, therefore, always falls on a date between 21 March and 18 April inclusive (in the Gregorian or Julian calendar, for the Western and Eastern system, resp.), and the following Sunday then necessarily falls on a date in the range 22 March to 25 April inclusive. However, in the Western system Easter cannot fall on 22 March during the 300-year period 1900-2199 (see below). In the solar calendar Easter is called a 1882:" (as distinct from "xxv") is used as follows: Within a Metonic cycle, years that are 11 years apart have epacts that differ by one day. A month beginning on a date having labels xxiv and xxv written side by side has either 29 or 30 days. If the epacts 24 and 25 both occur within one Metonic cycle, then the new (and full) moons would fall on the same dates for these two years. This is possible for the real moon but is inelegant in a schematic lunar calendar; the dates should repeat only after 19 years. To avoid this, in years that have epacts 25 and with a Golden Number larger than 11, the reckoned new moon falls on the date with the label 8997: 2433: 2079: 1925:

235−0.1425/30 = 234.99525 months, whereas there are actually 19 × 365.2425 / 29.5305889 ≈ 234.997261 synodic months. The difference of 0.002011 synodic months per 19-year cycle, or 0.003126 days per year, necessitates an occasional lunar correction to the epact. In the Gregorian calendar, this is done by adding 1 eight times in 2,500 (Gregorian) years (slightly more than 2500 × 0.003126, or about 7.8), always in a century year: this is the so-called

2067: 1292: 3328:. If the astronomical equinoctial full moon falls before the computistical equinoctial full moon, Easter will be celebrated four or even five weeks too late. Such cases are called a positive equinoctial paradox (A+ paradox) according to Lange. In the reverse case when the Computistical equinoctial full moon falls a month before the astronomical equinoctial full moon, Easter is celebrated four or five weeks too early. Such cases are called a negative equinoctial paradox (A− paradox). 2444:, made use of an uncorrected repetition of the 19-year Metonic cycle in combination with the Julian calendar. In terms of the method of the epacts discussed above, it effectively used a single epact table starting with an epact of 0, which was never corrected. In this case, the epact was counted on 22 March, the earliest acceptable date for Easter. This repeats every 19 years, so there are only 19 possible dates for the paschal full moon from 21 March to 18 April inclusive. 2240: 39: 10007: 5882: 1959: 758: 2420:, a "cypher", and the date of the paschal full moon, from which the date of Easter Sunday follows. The epact does not explicitly appear. Simpler tables can be used for limited periods (such as 1900–2199) during which the cypher (which represents the effect of the solar and lunar corrections) does not change. Clavius's details were employed in the construction of the method, but they play no subsequent part in its use. 906:. It is the day of the lunar month on which the moment of opposition ("full moon") is most likely to fall. The "new moon" is most likely to become visible (as a slender crescent in the western sky after sunset) on the first day of the lunar month. The conjunction of sun and moon ("new moon") is most likely to fall on the preceding day, which is day 29 of a "hollow" (29-day) month and day 30 of a "full" (30-day) month. 1929:(historically called "lunar equation"). The first one was applied in 1800, the next is in 2100, and will be applied every 300 years except for an interval of 400 years between 3900 and 4300, which starts a new cycle. At the time of the reform, the epacts were changed by 7, even though 10 days were skipped, in order to make a three-day correction to the timing of the new moons. 2483:, which promulgated the Gregorian calendar, that it restored "the celebration of Easter according to the rules fixed by ... the great ecumenical council of Nicaea" was based on a false claim by Dionysius Exiguus (525) that "we determine the date of Easter Day ... in accordance with the proposal agreed upon by the 318 Fathers of the Church at the Council in Nicaea." 1220:

year. In the Eastern system (see below), the Paschal full moon is usually four days later. It is 34 days later in five of the 19 years, and 5 days later in years 6 and 17, because in those years, the Gregorian system puts the Paschal full moon a day earlier than it would normally be, in order to keep Easter before April 26, as explained below. In AD

913:, which cycle repeats the lunar phase on January 1 every 19 years. This method was modified in the Gregorian reform because the tabular dates go out of sync with reality after about two centuries, but from the epact method, a simplified table can be constructed that has a validity of one to three centuries. 6107:

The Expl.Suppl. of 2013 on p.599 instead specifies 70,499,175 lunations, without explanation or reference. This number appears to be the truncated value of dividing 2,081,882,250 days by 29.53059, which is a rounded value for the lunation length found in the table at the top of p.587 . So the number

2334:

section above describes the historical arguments and methods by which the present dates of Easter Sunday were decided in the late 16th century by the Catholic Church. In Britain, where the Julian calendar was then still in use, Easter Sunday was defined, from 1662 to 1752 (in accordance with previous

2284:

Also the drift in ecclesiastical full moons calculated by the Gregorian method compared to the true full moons is affected less than one would expect, because the increase in the length of the day is almost exactly compensated for by the increase in the length of the month, as tidal braking transfers

1908:

The Gregorian calendar has a correction to the tropical year by dropping three leap days in 400 years (always in a century year). This is a correction to the length of the tropical year, but should have no effect on the Metonic relation between years and lunations. Therefore, the epact is compensated

1271:

In practice, for the purpose of calculating Easter, this need not be done for all 365 days of the year. For the epacts, March comes out exactly the same as January, so one need not calculate January or February. To avoid the need to calculate the Dominical Letters for January and February, start with

1249:

on every date in that year that has the epact label "xxvii" (27). If the epact is 25, then there is a complication, introduced so that the ecclesiastical new moon will not fall on the same date twice during a Metonic cycle. If the epact cycle in force includes epact 24 (as does the cycle in use since

1219:

As one can see, the date of the Paschal full moon in a particular year is usually either 11 days earlier than in the previous year, or 19 days later. Exceptions are that in years 1, 6, and 17 of the cycle, the date is only 18 days later, and in years 7 and 18 only 10 days earlier than in the previous

3331:

Equinoctial paradoxes are always valid globally for the whole Earth, because the sequence of equinox and full moon does not depend on the geographical longitude. In contrast, weekly paradoxes are local in most cases and are valid only for part of the Earth, because the change of day between Saturday

3258:

and the lunar phases, and the true values computed according to astronomical principles, differences occasionally arise between the date of Easter according to computistical reckoning and the hypothetical date of Easter calculated by astronomical methods using the principles attributed to the Church

2094:

The relation between lunar and solar calendar dates is made independent of the leap day scheme for the solar year. Basically the Gregorian calendar still uses the Julian calendar with a leap day every four years, so a Metonic cycle of 19 years has 6,940 or 6,939 days with five or four leap

646:

and the seven extra 30-day months were largely hidden by being located at the points where the Julian and lunar months begin at about the same time. The extra months commenced on 1 January (year 3), 2 September (year 5), 6 March (year 8), 3 January (year 11), 31 December (year 13), 1 September (year

485:

15 rule. The 1923 version would have placed the astronomical Easter one month before the Gregorian Easter in 1924, 1943, and 1962, but one week after it in 1927, 1954, and 1967. The 1997 version would have placed the astronomical Easter on the same Sunday as the Gregorian Easter for 2000–2025 except

449:

15 rule affected two Swedish years, 1778 and 1798, that instead of being one week before the Gregorian Easter, were delayed one week so they were on the same Sunday as the Gregorian Easter. Germany's astronomical Easter was one week before the Gregorian Easter in 1724 and 1744. Sweden's astronomical

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In the 21st and 22nd centuries negative weekly paradoxical Easter dates occur in 2049, 2076, 2106, 2119 (global), 2133, 2147, 2150, 2170, and 2174. Positive weekly paradoxical dates occur in 2045, 2069, 2089 (global), and 2096. Positive equinoctial paradoxical dates in 2019, 2038, 2057, 2076, 2095,

3312:

gives the same Sunday as Easter, the celebrated Easter occurs one week in advance compared to the hypothetical "astronomically" correct Easter. Lange called this case a negative weekly (hebdomadal) paradox (H− paradox). If the astronomical calculation gives a Saturday for the first vernal full moon

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was on April 4 in the Gregorian calendar, or March 22 in the Julian calendar, but the Paschal full moon for that year (golden number 2) was March 25 in the Julian calendar.) Whenever there is a lunar correction the differences between the Western and Eastern ecclesiastical full moons increase by 1,

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circulated in 1577, in which it is explained that the correction system he devised was to be a perfectly flexible tool in the hands of future calendar reformers, since the solar and lunar calendar could henceforth be corrected without mutual interference. An example of this flexibility was provided

250:

A possible consequence of this intercalation is that 14 Nisan could occur before the equinox, which some third-century Christians considered unacceptable (this cannot happen in the fixed calendar in use today). Consequently, it was decided to separate the dating of Easter from the Hebrew calendar,

4244:

Using the Gauss's Easter algorithm for years prior to 1583 is historically pointless since the Gregorian calendar was not utilised for determining Easter before that year. Using the algorithm far into the future is questionable, since we know nothing about how different churches will define Easter

2258:

The "solar corrections" approximately undo the effect of the Gregorian modifications to the leap days of the solar calendar on the lunar calendar: they (partially) bring the epact cycle back to the original Metonic relation between the Julian year and lunar month. The inherent mismatch between sun

2074:

The frequency distribution for the date of Easter is ill-defined, because every 100 to 300 years the mapping from golden number to epact changes, and the long-term frequency distribution is only valid over a period of millions of years (see below), whereas the system will certainly not be used for

1932:

The solar and lunar corrections work in opposite directions, and in some century years (for example, 1800 and 2100) they cancel each other. The result is that the Gregorian lunar calendar uses an epact table that is valid for a period of from 100 to 300 years. The epact table listed above is valid

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of 1992 (p. 582). So the Gregorian Easter dates repeat in exactly the same order only after 5,700,000 years, 70,499,183 lunations, or 2,081,882,250 days; the mean lunation length is then 2,081,882,250/70,499,183 = 29.53058690 days. Of course the calendar would have to be

2058:

Every other lunar month has only 29 days, so one day must have two (of the 30) epact labels assigned to it. The reason for moving around the epact label "xxv/25" rather than any other seems to be the following: According to Dionysius (in his introductory letter to Petronius), the Nicene

709:

usual nominal 30-day lunar months and the same number of usual nominal 29-day months, but with 19 of these lengthened by a day on leap days, plus 24 intercalated months of 30 days and four intercalated months of 29 days. Since this is longer than the true length of a synodic month, about 29.53059

2259:

and moon in this basic 19-year cycle is then corrected every three or four centuries by the "lunar correction" to the epacts. However, the epact corrections occur at the beginning of Gregorian centuries, not Julian centuries, and therefore the original Julian Metonic cycle is not fully restored.

1253:

An epact of 25 giving April 4 can only happen if the golden number is greater than 11. In which case it will be 11 years after a year with epact 24. So for example, in 1954 the golden number was 17, the epact was 25, the ecclesiastical new moon was reckoned on April 4, the full moon on April 17.

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Add the label "25" to the dates that have "xxv" in the 30-day periods; but in 29-day periods (which have "xxiv" together with "xxv") add the label "25" to the date with "xxvi". The distribution of the lengths of the months and the length of the epact cycles is such that each civil calendar month

618:

Thus the lunar month took the name of the Julian month in which it ended. The nineteen-year Metonic cycle assumes that 19 tropical years are as long as 235 synodic months. So after 19 years the lunations should fall the same way in the solar years, and the epacts should repeat. Over 19 years the

2447:

Because there are no corrections as there are for the Gregorian calendar, the ecclesiastical full moon drifts away from the true full moon by more than three days every millennium. It is already a few days later. As a result, the eastern churches celebrate Easter one week later than the western

2486:

The First Council of Nicaea (325) did not, however, provide any explicit rules to determine that date, but only wrote "all our brethren in the East who formerly followed the custom of the Jews are henceforth to celebrate the said most sacred feast of Easter at the same time with the Romans and

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counting downwards, from "*" (0 or 30), "xxix" (29), down to "i" (1), starting from 1 January, and repeat this to the end of the year. However, in every second such period count only 29 days and label the date with xxv (25) also with xxiv (24). Treat the 13th period (last eleven days) as long,

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throughout most of the contemporary world. To obtain the date of Eastern Orthodox Easter on the latter calendar, 13 days (as of 1900 through 2099) must be added to the Julian dates, producing the dates below, in the last row. (Until AD 2099, 21 March Julian equates to 3 April Gregorian.)

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Alden A Mosshammer incorrectly states "Theoretically, the epact 30 = 0 represents the new moon at its conjunction with the sun. The epact of 1 represents the theoretical first visibility of the first crescent of the moon. It is from that point as day one that the fourteenth day of the moon is

392:

Apart from these churches on the eastern fringes of the Roman empire, by the tenth century all had adopted the Alexandrian Easter, which still placed the vernal equinox on 21 March, although Bede had already noted its drift in 725 – it had drifted even further by the 16th

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is the year's position in the 19-year lunar phase cycle, in which by assumption the moon's movement relative to Earth repeats every 19 calendar years. In older times, 19 calendar years were equated to 235 lunar months (the Metonic cycle), which is remarkably close since 235 lunar months are

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as it is compatible with the use of simple mechanical or electronic calculators. That restriction is undesirable for computer programming, where conditional operators and statements, as well as look-up tables, are available. One can easily see how conversion from day-of-March (22 to 56) to

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So for a given date of the ecclesiastical full moon, there are seven possible Easter dates. The cycle of Sunday letters, does not repeat in seven years: because of the interruptions of the leap day every four years, the full cycle in which weekdays recur in the calendar in the same way, is

2086:

If one does ask the question of what the distribution would be in the long term, that is, over the whole 5.7-million-year period after which the dates repeat, this distribution can be found fairly simply, and is quite different from the distribution in the period 1900 to 2199, or even the

2135:

If the epact of a year is 20, an ecclesiastical new moon falls on 31 December. If that year falls before a century year, then in most cases, a solar correction reduces the epact for the new year by one: The resulting epact "*" means that another ecclesiastical new moon is counted on

2448:

churches about 44% of the time, and on the same day about 30% of the time. (The eastern Easter is occasionally four or five weeks later because the Julian calendar is 13 days behind the Gregorian in 1900–2099, and so the Gregorian paschal full moon is sometimes before Julian 21 March.)

1941:) in the 6th figure after the decimal point. This corresponds to an error of less than a day in the phase of the moon over 40,000 years, but in fact the length of a day is changing (as is the length of a synodic month), so the system is not accurate over such periods. See the article 1257:

Label all the dates in the table with letters "A" to "G", starting from 1 January, and repeat to the end of the year. If, for instance, the first Sunday of the year is on 5 January, which has letter "E", then every date with the letter "E" is a Sunday that year. Then "E" is called the

1268:(Latin for 'the Lord's day'). The dominical letter cycles backward one position every year. In leap years after 24 February the Sundays fall on the previous letter of the cycle, so leap years have two dominical letters: the first for before, the second for after the leap day. 1936:

As explained below, the dates of Easter repeat after 5,700,000 years, and over this period the average length of an ecclesiastical month is 2,081,882,250/70,499,183 ≈ 29.5305869 days, which differs from the current actual mean lunation length (29,5305889 d: see

4227:

can yield offsets in the range 0 to 35 pointing to possible Easter Sundays on 22 March to 26 April. For reasons of historical compatibility, all offsets of 35 and some of 34 are subtracted by 7, jumping one Sunday back to the day of the full moon (in effect using a negative

3339:

In 2076 and 2133, double paradoxes (positive equinoctial and negative weekly) occur. Negative equinoctial paradoxes are extremely rare. They occur only twice until the year 4000 in 2353, when Easter is five weeks too early and in 2372, when Easter is four weeks too early.

631:. That is, 209 divided by 30 leaves a remainder of 29 instead of being a multiple of 30. This is a problem if compensation is only done by adding months of 30 days. So after 19 years, the epact must be corrected by one day for the cycle to repeat. This is the so-called 2131:

takes account of this by assigning epact label "19" instead of "xx" to 31 December of such a year, making that date the new moon. It happened every 19 years when the original Gregorian epact table was in effect (for the last time in 1690), and next happens in

1924:

are a little longer than 235 lunations. The difference accumulates to one day in about 308 years, or 0.00324 days per year. In one cycle, the epact decreases due to the solar correction by 19 × 0.0075 = 0.1425 on average, so a cycle is equivalent to

2423:

J. R. Stockton shows his derivation of an efficient computer algorithm traceable to the tables in the prayer book and the Calendar Act (assuming that a description of how to use the Tables is at hand), and verifies its processes by computing matching tables.

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since its date varies within a 35-day range. But in the lunar calendar, Easter is always the third Sunday in the paschal lunar month, and is no more "moveable" than any holiday that is fixed to a particular day of the week and week within a month, such as

494:

The Easter cycle groups days into lunar months, which are either 29 or 30 days long. There is an exception. The month ending in March normally has 30 days, but if 29 February of a leap year falls within it, it contains 31. As these groups are based on the

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of −1). This means that 26 April is never Easter Sunday and that 19 April is overrepresented. These latter corrections are for historical reasons only and have nothing to do with the mathematical algorithm. The offset of 34 is adjusted if (and only if)

4099:, as Easter is to celebrate the Sunday after the ecclesiastical full moon; that is, if the full moon falls on Sunday 21 March, Easter is to be celebrated 7 days after, while if the full moon falls on Saturday 21 March, Easter is the following 22 March. 4012:

days. The difference is 11 days, which must be corrected for by moving the following year's occurrence of a full moon 11 days back. But in modulo 30 arithmetic, subtracting 11 is the same as adding 19, hence the addition of 19 for each year added, i.e.

3467:. In 1811, he limited his algorithm to the 18th and 19th centuries only, and stated that 26 April is always replaced with 19 and 25 April by 18 April in the circumstances stated. In 1816, he thanked his student Peter Paul Tittel for pointing out that 329:

The tables of Dionysius and Victorius conflicted with those traditionally used in the British Isles. The British tables used an 84-year cycle, but an error made the full moons fall progressively too early. The discrepancy led to a report that Queen

513:

There are 12 synodic months in a lunar year, totaling either 354 or 355 days. The lunar year is about 11 days shorter than the calendar year, which is either 365 or 366 days long. These days by which the solar year exceeds the lunar year are called

6093:

Traditionally in the Christian West, this situation was handled by extending the first 29-day lunar month of the year to 30 days, and beginning the following lunar month one day later than otherwise if it was due to begin before the leap

2102:

From the perspective of those who might wish to use the Gregorian Easter cycle as a calendar for the entire year, there are some flaws in the Gregorian lunar calendar (although they have no effect on the paschal month and the date of Easter):

563:"Thus beginning the year with March (for that was the ancient custom) they allowed thirty days for the moon in March, and twenty-nine for that in April; and thirty again for May, and twenty-nine for June &c. according to the old verses: 1276: 125:

had deteriorated to the point that the church put great value in a system that would allow the clergy to determine the date for themselves, independently yet consistently. Additionally, the church wished to eliminate dependencies on the

259:

had designated 21 March as an ecclesiastical date for the equinox, irrespective of actual astronomical observation. In 395, Theophilus published a table of future dates for Easter, validating the Alexandrian criteria. Thereafter, the

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are together, there is no problem since they are the same. This does not move the problem to the pair "25" and "xxvi", because the earliest epact 26 could appear would be in year 23 of the cycle, which lasts only 19 years: there is a

4087:

is determined, this is the number of days to add to 22 March (the day after the earliest possible full moon allowed, which is coincident with the ecclesiastical equinox of spring) to obtain the date of the day after the full moon.

6564: 4152:, so 52 full weeks make up one day too little. Hence, each consecutive year, the weekday "slides one day forward", meaning if 6 May was a Wednesday one year, it is a Thursday the following year (disregarding leap years). Both 2280:

This does affect the date of the equinox, but it so happens that the interval between northward (northern hemisphere spring) equinoxes has been fairly stable over historical times, especially if measured in mean solar time.

883:

Easter Sunday is the Sunday following the paschal full moon date. The paschal full moon date is the ecclesiastical full moon date on or after 21 March. The Gregorian method derives paschal full moon dates by determining the

2247:

This raises the question why the Gregorian lunar calendar has separate solar and lunar corrections, which sometimes cancel each other. Lilius's original work has not been preserved, but his proposal was described in the

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century. Worse, the reckoned Moon that was used to compute Easter was fixed to the Julian year by the 19-year cycle. That approximation built up an error of one day every 310 years, so by the 16th century the

2139:

Other borderline cases occur (much) later, and if the rules are followed strictly and these cases are not specially treated, they generate successive new moon dates that are 1, 28, 59, or (very rarely) 58 days

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If a year with Golden Number 19 happens to have epact 19, then the last ecclesiastical new moon falls on 2 December; the next would be due on 1 January. However, at the start of the new year, a

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starts and ends with the same epact label, except for February and, one might say, for August, which starts with the double label "xxv"/"xxiv" but ends with the single label "xxiv". This table is called the

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To subtract by 1 is exactly what is required for a normal year – since the weekday slips one day forward we should compensate one day less to arrive at the correct weekday (i.e. Sunday). For a leap year,

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The range of days considered for the full moon to determine Easter are 21 March (the day of the ecclesiastical equinox of spring) to 18 April—a 29-day range. However, in the mod 30 arithmetic of variable

637:("leap of the moon"). The Julian calendar handles it by reducing the length of the lunar month that begins on 1 July in the last year of the cycle to 29 days. This makes three successive 29-day months. 3332:

and Sunday is dependent on the geographical longitude. The computistical calculations are based on astronomical tables valid for the longitude of Venice, which Lange called the Gregorian longitude.

223:, with the 14th corresponding to a full moon. By the 2nd century, many Christians had chosen to observe Easter only on a Sunday. The Hebrew calendar does not have a simple relationship with the 165:

came to refer specifically to the calculation of time. The calculations produce different results depending on whether the Julian calendar or the Gregorian calendar is used. For this reason, the

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is divided into two parts. The first part is the approximate tracking of the lunar orbiting and the second part is the exact deterministic offsetting to obtain a Sunday following the full moon.

1254:

Easter was on April 18 rather than April 25 as it would otherwise have been, such as in 1886 when the golden number was 6. This system automatically intercalates seven months per Metonic cycle.

6411:(Magh-Lene), where the Easter question was considered. The direct result of the synod was an alteration in the observance among the southern Irish and the adoption of the Alexandrian reckoning. 2273:

The ratios of (mean solar) days per year and days per lunation change both because of intrinsic long-term variations in the orbits, and because the rotation of the Earth is slowing down due to

2075:

that long. The present mapping, valid from 1900 to 2199, gives Easter dates with highly varying frequencies. March 22 can never occur, whereas March 31 occurs 13 times in this 300-year span.

6570: 6108:

of 70,499,175 would be an estimate of the actual number of lunations in a 5.7Myr period, and not the number of New Moons actually counted by the Gregorian lunar calendar over its full cycle.

2927:

As mentioned earlier, these Paschal full moons are 4, 5 or 34 days later than in the Western system, and are around three days later than the astronomical full moon. (For example, the

2223:

corrections to the epacts, which divided by 30 add up to a correction of −817 lunations, for a total of 70,499,183 lunations. This number appears to have been first derived by

311:, who worked in Rome from about 500 to about 540, to construct a continuation of it in the form of his famous Paschal table covering the years 532 to 616. Dionysius introduced the 8895: 4183:

thus is 0 instead of 8 – which under mod 7, is another subtraction by 1 – i.e., a total subtraction by 2, as the weekdays after the leap day that year slide forward by two days.

1227:

The epacts are used to find the dates of the new moon in the following way: Write down a table of all 365 days of the year (the leap day is ignored). Then label all dates with a

2440:

The method for computing the date of the ecclesiastical full moon that was standard for the western Church before the Gregorian calendar reform, and is still used today by most

374:

remained in use in western Europe until the Gregorian calendar reform, and remains in use in most Eastern Churches, including the vast majority of Eastern Orthodox Churches and

6446: 2520:

to the Julian calendar. Rome accepted it sometime between the sixth and ninth centuries. The British Isles accepted it during the eighth century except for a few monasteries.

5953:, included only two bissextile (leap) years every 19 years, so could not be used by anyone using the Julian calendar, which had four or five leap years per lunar cycle. 2539:, did so in 716. The last English monastery to accept it did so in 931. Before these dates, other methods produced Easter Sunday dates that could differ by up to five weeks. 4214:

provides the starting point for the calculations for each century and depends on where 1 January, year 1 was implicitly located when the Gregorian calendar was constructed.

2215:

centuries before they repeat at the same golden number. It is not obvious how many ecclesiastic New Moons are counted in this 5.7 Myr period. The Metonic cycles add up to

430:, while Sweden used it from 1739 to 1844. This astronomical Easter was the Sunday after the full moon instant that was after the vernal equinox instant using Uraniborg time 888:

for each year. The epact can have a value from * (0 or 30) to 29 days. It is the age of the moon in days (i.e. the lunar date) on 1 January reduced by one day. In his book

710:

days, the calculated Paschal full moon gets later and later compared to the astronomical full moon, unless a correction is made as in the Gregorian system (see below).

9770: 9249: 2946:). From the table, the paschal full moon for golden number 16 is 21 March. From the week table 21 March is Saturday. Easter Sunday is the following Sunday, 22 March. 8219:"Paradoxe" Osterdaten im Gregorianischen Kalender und ihre Bedeutung für die moderne Kalender reform von Ludwig Lange. Vorgelegt von Eduard Schwartz am 7. Juli 1928 4035:

serves to have a correct starting point at the start of each century. It is determined by a calculation taking the number of leap years up until that century where

11604: 9765: 9244: 322:

tried to adapt the Alexandrian method to Roman rules in 457 in the form of a 532-year table, but he introduced serious errors. These Victorian tables were used in

9601: 9100: 3224:

The first half-line of each line gives the date of the paschal full moon from the table above for each year in the 19-year cycle. The second half-line gives the

3000:

In medieval western Europe, the dates of the paschal full moon (14 Nisan) given above could be memorized with the help of a 19-line alliterative poem in Latin:

2405:

after." The annexe subsequently uses the terms "Paschal Full Moon" and "Ecclesiastical Full Moon", making it clear that they approximate to the real full moon.

1250:

1900 and until 2199), then an epact of 25 puts the ecclesiastical new moon on April 4 (having the label "25"), otherwise it is on April 5 (having label "xxv").

9606: 9105: 5455:(1991, p. 69), presents the following algorithm for calculating the Julian Easter on the Julian Calendar, which is not the Gregorian Calendar used as the 2087:

distribution over the period since the reform until now. The date of Easter in a given year depends only on the epact for the year, its golden number, and its

3322:

The discrepancies are even larger if there is a difference according to the vernal equinox with respect to astronomical theory and the approximation of the

2243:

Graphs of the dates of Western and Eastern Orthodox Easter Sunday compared with the March equinox and full moons from 1950 to 2050 on the Gregorian calendar

8888: 346: 11396: 551:

It is necessary to add them to the day of the solar year to obtain the correct day in the lunar year. Whenever the epact reaches or exceeds 30, an extra

7393: 7070: 2363:

with its annexe. The method was chosen to give dates agreeing with the Gregorian rule already in use elsewhere. The act required that it be put in the

11380: 8669: 381:

Having deviated from the Alexandrians during the 6th century, churches beyond the eastern frontier of the former Byzantine Empire, including the

4245:

far ahead. Easter calculations are based on agreements and conventions, not on the actual celestial movements nor on indisputable facts of history.

4134:. These constants may seem strange at first, but are quite easily explainable if we remember that we operate under mod 7 arithmetic. To begin with, 6513: 2997:(7th century) seems to have been the first to identify the solar cycle, and explain the paschal cycle from the Metonic cycle and the solar cycle. 11348: 8881: 8148: 6673: 685:

Cycles of 19 years are not all the same length, because they may have either four or five leap years. But a period of four cycles, 76 years (a

3396:

presented this algorithm for calculating the date of the Julian or Gregorian Easter. He corrected the expression for calculating the variable

2270:, pp. 45–76) if the corrections are combined, then the inaccuracies of the two cycles are also added and cannot be corrected separately. 2232: 678:

taking the remainder; in that case, you need to treat a result of 0 as golden number 19. In the formula above we take the remainder first and

11372: 8750: 7905:

In the fifth volume of Opera Mathematica, Mainz, 1612. Opera Mathematica of Christoph Clavius includes page images of the Six Canons and the

2319:). In the same historic stretch of time the length of the mean tropical year has diminished by about 10 s (all values mean solar time). 8636:

Zeyer, Klaus Peter (2020). "Häufigkeit von Osterparadoxien: Negative Äquinoktialparadoxien der Jahre 2353 und 2372 als seltenste Variante".

7451: 7416: 7142: 6875: 6824: 11597: 9989: 7192: 7938: 7646: 3319:

one week too late in comparison to the astronomical result. He classified such cases a positive weekly (hebdomadal) paradox (H+ paradox).

8434: 7251: 117:

It was originally feasible for the entire Christian Church to receive the date of Easter each year through an annual announcement by the

7693: 6940: 4210:

contains the step from the day after the day of the full moon to the nearest following Sunday, between 0 and 6 days ahead. The constant

4110:

to make it arrive at a Sunday. Since the week has 7 days, the offset must be in the range 0 to 6 and determined by modulo 7 arithmetic.

8180: 6483: 4083:, both of which can have integer values in the range 0 to 29, the range is 30. Therefore, adjustments are made in critical cases. Once 10696: 8691:, (Abhandlungen der königlichen Gesellschaft der Wissenschaften zu Göttingen. Pilologisch-historische Klasse. Neue Folge, Band viii.) 6453: 2288:

The Ptolemaic value of the length of the mean synodic month, established around the 4th century BCE by the Babylonians, is

8738: 8722: 4556: 8126: 2255:

through an alternative intercalation sequence derived from Copernicus's theories, along with its corresponding epact corrections.

11590: 9967: 2228: 8842: 7037: 6979: 11432: 10767: 10632: 10565: 8057: 8049: 2359:

For the British Empire and colonies, the new determination of the date of Easter Sunday was defined by what is now called the

378:. The only Eastern Orthodox church which does not follow the system is the Finnish Orthodox Church, which uses the Gregorian. 8461: 8399: 8366: 8078: 8020: 7980: 7923: 7861: 7817: 7747: 7673: 6905: 2144:

A careful analysis shows that through the way they are used and corrected in the Gregorian calendar, the epacts are actually

2117:

increases the epact by another unit, and the new moon should have occurred on the previous day. So a new moon is missed. The

2023: 822: 8792: 8701: 8467: 8405: 8372: 8223: 8026: 7986: 7892: 7867: 7834: 7753: 7720: 11291: 4206:, which is the desired operation. Thus, again, we do subtraction by adding under modulo arithmetic. In total, the variable 2500: 1995: 794: 290:

around 277, the concept did not fully take hold until the Alexandrian method became authoritative in the late 4th century.

8115:, Translated by G. A. Williamson. Revised and edited with a new introduction by Andrew Louth. Penguin Books, London, 1989. 6600: 6407:, p. 90: The letter is at once a report and an apology or justification to Abbot Seghine at Iona of a synod held at 6347: 11010: 10701: 9492: 8807: 7912:

Constantine the Great, Emperor (325): Letter to the bishops who did not attend the first Nicaean Council; from Eusebius'

286:

near the end of the 3rd century. Although a process based on the 19-year Metonic cycle was first proposed by Bishop

8833:

Explanation of the Gregorian solar and lunar calendar, with improved procedures over the tabular method, by David Madore

7165: 3313:

and Easter is not celebrated on the directly following Sunday but one week later, Easter is celebrated according to the

11473: 10624: 9448: 8980: 8667:

Gregorian reform of the calendar: Proceedings of the Vatican conference to commemorate its 400th anniversary, 1582–1982

2980: 1275: 909:

Historically the paschal full moon date for a year was found from its sequence number in the Metonic cycle, called the

6569:, Aleppo, Syria: World Council of Churches/Middle East Council of Churches Consultation, 10 March 1997, archived from 2236:

adjusted after a few millennia because of changes in the length of the tropical year, the synodic month, and the day.

2002: 801: 555:(or embolismic month) of 30 days must be inserted into the lunar calendar: then 30 must be subtracted from the epact. 11356: 7245: 6989: 6017:

correctly, beginning the next month on 30 July, none of them continued the sequence correctly to the end of the year.

5998:

correctly, beginning the next month on 30 July, none of them continued the sequence correctly to the end of the year.

2042: 841: 8870:

A database of medieval manuscripts containing Latin computistical algorithms, texts, tables, diagrams and calendars.

8239:

Lichtenberg, Heiner (2003). "Das anpassbar zyklische, solilunare Zeitzählungssystem des gregorianischen Kalenders".

5975:

For example, in the Julian calendar, at Rome in 1550, the March equinox occurred on 11 March at 6:51 a.m.

4008:

A calendar year (non-leap year) has 365 days and the closest one can come with an integer number of lunar months is

3353:

When expressing Easter algorithms without using tables, it has been customary to employ only the integer operations

450:

Easter was one week before the Gregorian Easter in 1744, but one week after it in 1805, 1811, 1818, 1825, and 1829.

11388: 11298: 11150: 10044: 9878: 9841: 9051: 9038: 8864:

as amended to date. Contains tables for calculating Easter up until the year 8599. Contrast with the Act as passed.

8450:

Peterson, Michael D. (2015). "Fasting: Eastern Christian". In Johnston, William M.; Kleinhenz, Christopher (eds.).

745: 182: 469:

in 1997. Both used the same rule as the German and Swedish versions but used modern astronomical calculations and

453:

Two modern astronomical Easters were proposed but never used by any Church. The first was proposed as part of the

11364: 10482: 9498: 8793:

The original texts of the Gregorian calendar reform (in Latin), with translations into French by Rodolphe Audette

1976: 775: 4198:

indicates that the full moon occurs y days later this year, and hence we should compensate y days less. Adding 6

2009: 808: 181:(which follow the Julian calendar). It was the drift of 21 March from the observed equinox that led to the 11719: 11417: 10288: 9972: 9835: 9396: 9309: 8823: 8268:

McCarthy, Daniel (August 1993). "Easter principles and a fifth-century lunar cycle used in the British Isles".

1980: 779: 587:, or unequal months, have their moons according to computation of thirty days each, which are therefore called 349:

in 630, the southern Irish began to use the Dionysian tables, and the northern English followed suit after the

29:

This article is about how the date of Easter is calculated. For actual dates of Easter from 2014 to 2034, see

8666: 7385: 7059: 3374: 3306:. In cases where the first vernal full moon according to astronomical calculation occurs on a Sunday and the 2360: 46:, Italy. Five 19-year cycles are represented as concentric circles. Dates are given using the system of the 11709: 10661: 10379: 10369: 9851: 9829: 9695: 9315: 9303: 9167: 5907: 1991: 790: 17: 6962: 3294:. In eighteen cases the date differed by a week, in seven cases by 35 days, and in five cases by 28 days. 11422: 10637: 6641: 6617: 6026:"the of a year AD is found by adding one, dividing by 19, and taking the remainder (treating 0 as 19)."( 3406: 1272:

D for 1 March. You need the epacts only from 8 March to 5 April. This gives rise to the following table:

1232:

therefore, and assign the labels "xxv" and "xxiv" to sequential dates (26 and 27 December respectively).

382: 326:(now France) and Spain until they were displaced by Dionysian tables at the end of the 8th century. 303:

into the Julian calendar in Alexandria around 440, which resulted in a Paschal table (attributed to pope

244: 228: 8492:

Swerdlow, Noel M. (1986). "The Length of the Year in the Original Proposal for the Gregorian Calendar".

7115:

Book of Common Prayer, and Administration of the Sacraments and Other Rites and Ceremonies of the Church

6657: 4516:"A New York correspondent" submitted this algorithm for determining the Gregorian Easter to the journal 2993:

he described had a 532-year cycle, although he did realize that his 95-year table was not a true cycle.

11540: 8862:

Text of the Calendar (New Style) Act 1750, British Act of Parliament introducing the Gregorian Calendar

7463: 7428: 6612: 6505: 3284:

for the period from 1475 to 1531. In his work he tabulated 30 instances where the Easter of the Julian

397:

was out of phase with the real Moon by four days. The Gregorian Easter has been used since 1583 by the

150: 8797: 6234: 674:

is divided by 19, and the remainder plus 1 is the golden number. (Some sources specify that you add 1

11563: 9846: 9630: 9298: 9293: 9129: 8692: 4532: 3250:

Due to the discrepancies between the approximations of Computistical calculations of the time of the

2987:, who prepared Easter tables that started in 532. He apparently did not realize that the Alexandrian 2266:

subtractions could be distributed evenly over 10,000 years (as has been proposed for example by

593:, or equal moons: but the second, fourth, sixth, eighth, tenth, and twelfth months, which are called 462: 8861: 8857:

A simplified method for determining the date of Easter for all years 326 to 4099 by Ronald W. Mallen

8142: 6223: 1242:. The ecclesiastical new moons for any year are those dates when the epact for the year is entered. 11332: 11304: 11080: 10807: 9883: 9523: 9469: 9361: 8213: 3384:. More importantly, using such conditionals also simplifies the core of the Gregorian calculation. 3297: 2928: 714: 267: 198: 30: 8803:

Ephemeris site of the Bureau des Longitudes with an Easter calculator (valid between 325 and 2500)

6176: 4005:

comes from correcting the mismatch between a calendar year and an integer number of lunar months.

1869:

As an example, if the epact is 27 (xxvii), an ecclesiastical new moon falls on every date labeled

870:

methodology was introduced alongside the new calendar. The general method of working was given by

110:

arises because of the desire to associate the date of Easter with the date of the Jewish feast of

11729: 11724: 11714: 11558: 10972: 10933: 10711: 10443: 9818: 9755: 9745: 9435: 9425: 9287: 9234: 9217: 8972: 8962: 8626: 7138: 4549: 3273: 1969: 1246: 768: 499:, over the long term the average month in the lunar calendar is a very good approximation of the 454: 386: 252: 10617: 7196: 2436:

Distribution of the date of Easter 1900–2099 in most Eastern denominations vis-à-vis the Western

713:

The paschal or Easter-month is the first one in the year to have its fourteenth day (its formal

647:

16), and 5 March (year 19). The sequence number of the year in the 19-year cycle is called the "

207:, which Christians believe to have occurred on the third day (inclusive) after the beginning of 11617: 11015: 10982: 10967: 10691: 10433: 10389: 10011: 9956: 9783: 9760: 9750: 9420: 9257: 9239: 9229: 8933: 7931: 7237: 3366: 2976: 2956: 2462: 2345: 2136:

1 January. So, formally, a lunation of one day has passed. This next happens in 4199–4200.

1921: 319: 10686: 8996: 8712:

Calendar and Community: A History of the Jewish Calendar Second Century BCE – Tenth Century CE

8422: 8068: 7948:

de Kort, J. J. M. A. (September 1949). "Astronomical appreciation of the Gregorian calendar".

7634: 7525: 7501: 7236:, Nicene and Post-Nicene Fathers: Second Series, vol. 14, The Seven Ecumenical Councils, 7231: 7095:

An act for regulating the commencement of the year; and for correcting the calendar now in use

4055:

as the total number of inhibitions to the pattern of a leap day every four years. Thus we add

3965:, the number of days (counting from 22 March) to the day after the full moon. The formula for 11638: 10762: 10438: 10421: 10384: 10364: 10252: 9624: 9123: 8848:

St. Gallen, Stiftsbibliothek, Codex Sangallensis 378 (11th century) p. 28. Contains the poem

7630: 7513: 6936:"Die Osterrechnung oder Vorschlag zur Einführung eines kirchlichen Kalenders und Osterkanons" 6934: 6205: 4160:

increase by one for an advancement of one year (disregarding modulo effects). The expression

2369:, and therefore it is the general Anglican rule. The original act can be seen in the British 2365: 2340: 530: 398: 287: 204: 135: 8174: 6479: 3300:

investigated and classified different types of paradoxical Easter dates using the Gregorian

2016: 815: 315:(counting years from the Incarnation of Christ) by publishing this new Easter table in 525. 173:(which follow the Gregorian calendar) celebrate Easter on a different date from that of the 11468: 11409: 11032: 10716: 10706: 10598: 10428: 10179: 10174: 10037: 9907: 9356: 8813:

A page from Clive Feather with a brief explanation, some more tables, and another algorithm

8573: 8550: 8538: 8501: 8318: 8277: 8100: 7957: 7778: 7584: 6930: 6867: 6816: 5901: 4568:. Because of the Meeus book citation, this is also called "Meeus/Jones/Butcher" algorithm: 4537: 3393: 2511: 2504: 2224: 2060: 910: 256: 232: 8768: 149:

as a general term for any sort of calculation, although he refers to the Easter cycles of

8: 11505: 11198: 10943: 10721: 10681: 10649: 10242: 9977: 9596: 9528: 9383: 9222: 9095: 8873: 7687: 5887: 2532: 544: 408:

German Protestant states used an astronomical Easter between 1700 and 1776, based on the

304: 283: 220: 170: 8735: 8719: 8577: 8542: 8505: 8322: 8281: 8104: 7961: 7782: 7588: 7113: 6871: 6859: 6820: 6804: 1942: 11448: 11005: 10676: 10669: 10654: 10644: 10477: 10448: 10374: 10134: 9984: 9924: 9889: 9868: 9857: 9517: 9338: 9332: 9321: 9045: 8920: 8589: 8517: 8334: 8293: 8256: 8123: 7794: 6667: 5177:

was calculated using Gauss's 1816 correction, resulting in the elimination of variable

2979:

at the beginning of the 5th century. It has also sometimes erroneously been called the

2441: 2285:

angular momentum of the rotation of the Earth to orbital angular momentum of the Moon.

2274: 1938: 1300: 1296: 861: 375: 318:

A modified 84-year cycle was adopted in Rome during the first half of the 4th century.

279: 212: 194: 178: 103: 8847: 6007:

Although prior to the replacement of the Julian calendar in 1752 some printers of the

5988:

Although prior to the replacement of the Julian calendar in 1752 some printers of the

42:

A calendar of the dates of Easter, for the 95 years 532–626, marble, in the Museum of

11683: 11427: 11327: 11118: 11046: 10851: 10511: 10226: 9902: 9351: 8593: 8521: 8457: 8395: 8362: 8338: 8297: 8260: 8201: 8074: 8016: 8002: 7976: 7857: 7813: 7798: 7743: 7705: 7669: 7241: 7029: 6985: 2984: 2525: 2487:

yourselves and all those who have observed Easter from the beginning." The medieval

2478: 2171:

centuries. In that period, the epact for a given golden number changes by a total of

552: 418:, which were in turn based on astronomical positions of the Sun and Moon observed by 410: 308: 174: 79: 43: 8699:

Philip Schaff (ed.) Theodoret, Jerome, Gennadius, and Rufinius: historical writings

6782:

Weisstein (c. 2006) "Paschal full moon" agrees with this line of table through 2009.

581:"For the first, third, fifth, seventh, ninth, and eleventh months, which are called 251:

by identifying the first full moon following the March equinox. By the time of the

11496: 11243: 11238: 11203: 11090: 10905: 10861: 10593: 10470: 10409: 10193: 9863: 9794: 9735: 9327: 9207: 8661:

Trans. by Andrew Winnard. Cambridge: Polity Press; Chicago: Univ. of Chicago Press.

8610: 8581: 8509: 8326: 8285: 8248: 8088: 7786: 5895: 4527: 4518: 3370: 3281: 2432: 2417: 2353: 2088: 1917:

or "solar equation" ("equation" being used in its medieval sense of "correction").

1259: 622: 476: 442:

15, the first day of Passover week, calculated according to modern Jewish methods.

433: 10888: 8832: 8554: 7917: 7101: 7094: 6899:"The missing new moon of A.D. 16399 and other anomalies of the Gregorian calendar" 6898: 3997:

is determined per century. The 19-year cycle has nothing to do with the '19' in 19

307:) covering the years 437 to 531. This Paschal table was the source which inspired 86:, on or after 21 March – itself a fixed approximation of the 11582: 11284: 11233: 11177: 11105: 10938: 10920: 10910: 10789: 10460: 10346: 10324: 10247: 10030: 9685: 9672: 9508: 9384: 9157: 9149: 8921: 8908: 8904: 8827: 8773: 8742: 8726: 8705: 8698: 8673: 8622: 8451: 8389: 8356: 8217: 8130: 8053: 8010: 8006: 7970: 7942: 7927: 7884: 7851: 7828: 7807: 7737: 7714: 7663: 6622: 5976: 5933: 4171:

thus increases by 6 – but remember that this is the same as subtracting 1 mod 7.

2528:, and southern Italy) accepted it during the last quarter of the eighth century. 2465:

in 1200. A later scribe added the golden number to tables originally composed by

1280: 686: 556: 415: 350: 300: 166: 127: 99: 10489: 8821:

An extensive calendar site and calendar and Easter calculator by Nikolaus A. Bär

8802: 7769:

Bien, Reinhold (July 2004). "Gauß and Beyond: The Making of Easter Algorithms".

6056: 6052: 6048: 6044: 6040: 3230:, or weekday displacement, of the day of that year's paschal full moon from the 599:, or equal months, have their moons but twenty nine days each, which are called 11545: 11145: 11110: 10900: 10846: 10784: 10779: 10534: 10516: 10314: 10220: 10212: 10189: 10124: 9812: 9648: 9611: 9430: 9281: 9115: 9110: 8967: 8585: 8513: 8289: 8046: 6343: 5456: 3362: 2466: 2413: 2356:, which (in the Easter section of the book) were presumed to be already known. 2349: 2227:

in 1837. It is also mentioned in the chapter on calendars (p. 744) in the

718: 648: 519: 394: 71: 55: 47: 8483:

Richards, E. G. (2013). "Calendars". In S. E. Urban; P. K. Seidelmann (eds.).

8391:

Scandalous Error: Calendar Reform and Calendrical Astronomy in Medieval Europe

8252: 7790: 7289: 4522:

in 1876. It has been reprinted many times, e.g., in 1877 by Samuel Butcher in

11703: 11100: 11095: 11063: 11058: 10997: 10987: 10977: 10915: 10883: 10545: 10499: 10465: 10164: 10119: 10096: 9777: 9707: 9588: 9570: 9484: 9273: 9179: 9087: 9061: 9025: 9020: 9005: 8957: 8787: 8628:

A Rational Illustration of the Book of Common Prayer of the Church of England

8118:

Gregory XIII (Pope) and the calendar reform committee (1581): the Papal Bull

7169: 6608: 6591:

seconds, and the same value is given for the years 500, 1000, 1500, and 2000.

3269: 3255: 2542:

This is the table of paschal full moon dates for all Julian years since 931:

2082:

Distribution of the date of Easter for the complete 5,700,000 year cycle

1291: 1228: 500: 402: 240: 95: 87: 11530: 11321: 11167: 11073: 11068: 10774: 10526: 10415: 10309: 10257: 10086: 10057: 9999: 9928: 9824: 9712: 9560: 9392: 9184: 8929: 8614: 8205: 4071:

corrects for the lunar orbit not being fully describable in integer terms.

2126: 2078: 723: 438:. However, it was delayed one week if that Sunday was the Jewish date Nisan 427: 282:

based on eight-year cycles. Then 84-year tables were introduced in Rome by

122: 8843:

Mnemonic Computus Diagrams of Hands from manuscript in The British Library

8798:

An Easter calculator with an extensive bibliography, and with useful links

8529:

Shields, Miriam Nancy (1924). "The new calendar of the Eastern churches".

7850:

Byrhtferth of Ramsey (1995). Lapidge, Michael; Peter Stuart Baker (eds.).

7692:. Translated by Sellar, A. M.; Giles, J. A. London: George Bell and Sons. 2524:(all of western Europe except Scandinavia (pagan), the British Isles, the 2066: 1279:

A table from Sweden to find the date of Easter 1140–1671 according to the

11653: 11525: 11182: 11172: 11157: 11085: 10893: 10870: 10401: 10359: 10354: 10304: 10280: 10216: 10204: 9702: 9690: 9653: 9640: 9454: 9442: 9174: 9162: 9134: 9032: 8986: 8837: 8812: 8677:, (Vatican City: Pontifical Academy of Sciences, Specolo Vaticano, 1983). 6636: 4145:

ensures that we take care of the fact that weekdays slide for each year.

3982:

approximately 6939.6813 days and 19 years are on average 6939.6075 days.

3358: 3251: 671: 496: 419: 361: 335: 312: 224: 91: 6386: 6362: 5185:(to which one must be added to obtain the date of Easter) with variable 11673: 11668: 11648: 11535: 11128: 10826: 10184: 10169: 10144: 10129: 10110: 10091: 10022: 9873: 9807: 9722: 9618: 9565: 9459: 9388: 9194: 8925: 8330: 4561: 2536: 2473: 1983: in this section. Unsourced material may be challenged and removed. 782: in this section. Unsourced material may be challenged and removed. 266:

would be the procedure of determining the first Sunday after the first

90:). Determining this date in advance requires a correlation between the 8659:

The Ordering of Time: From the Ancient Computus to the Modern Computer

6480:"The Many Easters & Eostres for the Many: A Choice of Hallelujahs" 331: 38: 11513: 11487: 11140: 10962: 10539: 10271: 10139: 9895: 9802: 9658: 9533: 9478: 9344: 9263: 9139: 9069: 9014: 6728: 6704: 3277: 2239: 903: 535: 470: 423: 107: 83: 11259: 8820: 8746:(Continued), Popular Astronomy, May 1945, Vol. 53, pp. 218–232. 4001:; it is just a coincidence that another '19' appears. The '19' in 19 3259:

fathers. These discrepancies are called "paradoxical" Easter dates.

1958: 1295:

Chronological diagram of the date of Easter for 600 years, from the

916:

The epacts for the current Metonic cycle, which began in 2014, are:

757: 11678: 11658: 11633: 11162: 10841: 10552: 10336: 10106: 10074: 10006: 9994: 9680: 9552: 8601:

Turner, C.H. (1895). "The Paschal Canon of Anatolius of Laodicea".

6251: 4106:, the additional offset days that must be added to the date offset 3354: 3291: 2336: 2316: 1913:) by subtracting one in these century years. This is the so-called 902:

The fourteenth day of the lunar month is considered the day of the

458: 208: 130:, by deriving the date for Easter directly from the March equinox. 111: 10453: 8856: 7301: 7166:"The Calculation of Easter Sunday after the Book of Common Prayer" 3381:

if (DoM > 31) {Day=DoM-31, Month=Apr} else {Day=DoM, Month=Mar}

2972:, after Victorius of Aquitaine, who introduced it in Rome in 457. 11643: 11518: 11208: 11022: 9959:

in the universal calendar which do not normally fall on a Sunday.

8564:

Teres, Gustav (1984). "Time computations and Dionysius Exiguus".

8166:

Handbuch der mathematischen und technischen Chronologie, Band III

6839: 6740: 5881: 2521: 2451:

The sequence number of a year in the 19-year cycle is called its

2322: 2312: 874:

in the Six Canons (1582), and a full explanation followed in his

871: 8144:

Anomalous Easter Sunday Dates in the 18th and early 19th Century

6084:

In 2004 and again in 2015 there are full moons on 2 and 31 July.

98:, while also accounting for the month, date, and weekday of the 11228: 11027: 10878: 10750: 10741: 10053: 9730: 9409: 9202: 8946: 6477: 1245:

If the epact for the year is for instance 27, then there is an

466: 365: 75: 1283:. Each column corresponds to a period of 28 years. Notice the 121:. By the early third century, however, communications in the 11663: 10560: 7887:

Romani calendarij à Gregorio XIII. P. M. restituti explicatio

7330: 7328: 6601: 2161: 1910: 885: 523: 515: 339: 236: 216: 8769:

Excel spreadsheet formulae and functions to calculate Easter

6214:, pp. 425–426, Appendix 4: A Note on the Term Computus. 2385:, which happens upon, or next after the Twenty-first Day of 2277:, so the Gregorian parameters become increasingly obsolete. 2207:. This is prime to the 30 possible epacts, so it takes 1905:

in between that makes the new moons fall on separate dates.

11688: 11628: 11613: 10065: 9580: 9543: 9079: 8730:, Popular Astronomy, April 1945, Vol. 53, pp. 162–179. 7683: 7606: 7556: 7010: 6655: 6374: 6287: 6239: 2994: 1284: 697:

lunar months in this period, so the average length is 27759

357: 323: 140: 118: 8903: 8867: 8664:

Coyne, G. V., M. A. Hoskin, M. A., and Pedersen, O. (ed.)

8305:

McCarthy, Daniel (1996). "The Lunar and Paschal Tables of

7742:. Translated by Faith Wallis. Liverpool University Press. 7544: 7483: 7481: 7325: 6998: 6545: 6263: 2408:

The method is quite distinct from that described above in

693:

days (if it does not cross a century division). There are

334:, on the Dionysian system – fasted on her 62:

is determined in each year through a calculation known as

7806:

Blackburn, Bonnie J.; Holford-Strevens, Leofranc (1999).

7805: 6426: 6368: 6275: 6095: 6072: 6027: 5963: 5949:

The lunar cycle of Anatolius, according to the tables in

215:

calendar, Passover begins at twilight on the 14th day of

8788:

The entry on epacts in the Catholic Encyclopedia of 1911

8358:

The Easter Computus and the Origins of the Christian Era

7830:

The Ecclesiastical calendar: its theory and construction

7499: 7368: 7366: 7364: 6716: 1945:

for information on the cumulative change of day length.

114:

which, Christians believe, is when Jesus was crucified.

82:(a mathematical approximation of the first astronomical 8176:

Zeitrechnung des deutschen Mittelalters und der Neuzeit

7478: 6588: 6578: 6535: 6533: 6531: 6158: 3993:) mod 30 repeats every 19 years within each century as 3245: 2960:. So the Easter dates repeated in the same order after 860:

was the primary motivation for the introduction of the

278:

The earliest known Roman tables were devised in 222 by

8200:(in French). Paris: Presses Universitaires de France. 7594: 7532: 6964:"Almanac and Astronomical Ephemeris for the year 1931" 6323: 6311: 6299: 6134: 5181:. Some tidying results in the replacement of variable 7361: 7313: 6752: 6414: 3935:+ 11) mod 30 < 19, replace 25 April with 18 April 2503:

during the first decade of the 4th century using the

2409: 486:

for 2019, when it would have been one month earlier.

342:, king of Northumbria, feasted on his Easter Sunday. 8487:(3rd ed.). Mill Valley, CA: Univ Science Books. 7849: 7351: 7349: 7347: 7345: 7343: 7295: 7277: 7265: 7211: 6939:. Riga: Eduard Frantzen's Buchhandlung. p. 59. 6680: 6659:

Explanatory Supplement to the Astronomical Ephemeris

6528: 6193: 6146: 5877: 5173:

algorithm incorporating a few changes. The variable

5101: 3961:

The first part consists of determining the variable

3378:

day-and-month (22 March to 25 April) can be done as

8066: 7307: 6984:. Washington: U.S. Naval Observatory. p. 582. 6978:Doggett, L.E. (1992). Seidelmann, P.Kenneth (ed.). 6805:"The Frequency Distribution of the Dates of Easter" 6692: 6471: 3242:is repeated in Roman numerals in the third column. 2514:accepted it shortly after 380 after converting the 2455:. This term was first used in the computistic poem 2107:

Lunations of 31 (and sometimes 28) days occur.

2055:This method of computation has several subtleties: 734: 11612: 8485:Explanatory Supplement to the Astronomical Almanac 8001: 6981:Explanatory Supplement to the Astronomical Almanac 6845: 6764: 6746: 6734: 6710: 6452:. Cyprus Action Network of America. Archived from 6398: 6122: 5153:indicates the month of the year (either March for 3290:disagreed with Easter computed using astronomical 2373:. The annexe to the act includes the definition: " 231:a leap month every two or three years, before the 7340: 7190: 7136: 6181: 5161:= 4), while the day of the month is obtained as ( 2251:Compendium Novae Rationis Restituendi Kalendarium 11701: 6967:. London: His Majesty's Stationery Office. 1929. 5904: – Christian gospel episode of darkened sky 4248: 8808:A calendar page and calculator by Holger Oertel 8124:"Les textes fondateurs du calendrier grégorien" 7577:Journal of the British Astronomical Association 5936:, see arguments for a 5th century date in 4546:Journal of the British Astronomical Association 2412:. For a general year, one first determines the 2377:(on which the rest depend) is always the first 385:, now celebrate Easter on different dates from 356:The Dionysian reckoning was fully described by 4067:to correct for leap days that never occurred. 2416:, then one uses three tables to determine the 2315:); the current value is 0.46 s less (see 461:in 1923 and the second was proposed by a 1997 11598: 10038: 8889: 8549: 7972:Anno Domini: The Origins of the Christian Era 7909:(Go to page: Roman Calendar of Gregory XIII). 7562: 5932:Although this is the dating of Augustalis by 5910: – Proposals to change the festival date 3766:For the Julian Easter in the Julian calendar 2472:The claim by the Catholic Church in the 1582 2335:practice), by a simple table of dates in the 2167:The solar and lunar corrections repeat after 682:add 1, so no such adjustment is necessary.) 364:for the Frankish Church as early as 782 from 219:. Nisan is the first month of spring in the 8420: 7612: 7240:, U.S.: Eerdmans Pub Co., pp. 112–114, 1224:2100 the difference will increase by a day. 78:is celebrated on the first Sunday after the 8774:The Complete Works of Venerable Bede Vol. 6 8684:, Cambridge University Press, London, 1903. 8238: 7713:Bede (1943). Charles Williams Jones (ed.). 6057: 6012: 5993: 5446: 3387: 3323: 3314: 3307: 3301: 3285: 3263: 3237: 3231: 3225: 2988: 2515: 2494: 2488: 2476: 2456: 2267: 2249: 2219:= 70,500,000 lunations. But there are net 2124: 2118: 2112: 1900: 1263: 1237: 891: 875: 865: 855: 736: 641: 632: 600: 594: 588: 582: 573: 567: 369: 294: 261: 227:: it resynchronizes with the solar year by 160: 154: 144: 63: 11605: 11591: 10869: 10045: 10031: 8896: 8882: 8354: 7500:A New York correspondent (20 April 1876). 7230:Schaff, Philip; Wace, Henry, eds. (1890), 7229: 6798: 6796: 6794: 6792: 6790: 6788: 6722: 6672:: CS1 maint: location missing publisher ( 6587:, p. 587: The day consists of 86,400 5937: 1909:for this (partially – see 569:Impar luna pari, par fiet in impare mense; 368:, a follower of Bede. The Dionysian/Bedan 8172: 8070:Carmina Medii Aevi Maximam Partem Inedita 7919:Documents from the First Council of Nicea 7668:(3rd ed.). OUP Oxford. p. 123. 6758: 5962:For confirmation of Dionysius's role see 4091:So the first allowable date of Easter is 3276:of the Sun and Moon for the longitude of 2348:). The table was indexed directly by the 2043:Learn how and when to remove this message 842:Learn how and when to remove this message 11398:Ich lebe, mein Herze, zu deinem Ergötzen 11350:Bleib bei uns, denn es will Abend werden 10052: 8714:, Oxford University Press, Oxford, 2001. 8491: 8482: 8449: 8304: 8267: 8140: 7968: 7689:Bede's Ecclesiastical History of England 7060:"Mean Northward Equinoctial Year Length" 7016: 6584: 6539: 6380: 6329: 6317: 6305: 6293: 6140: 4557:Practical Astronomy with your Calculator 4043:reinstalls it every 400 years, yielding 4039:inhibits a leap day every 100 years and 3400:in 1816. In 1800, he incorrectly stated 2431: 2238: 2077: 2065: 1290: 1274: 50:, as well as the day of the lunar month. 37: 8621: 8528: 8387: 8087: 7947: 7921:, "On the keeping of Easter" (near end) 7882: 7826: 7550: 7538: 7378: 7334: 7004: 6977: 6929: 6802: 6785: 6698: 6551: 6344:"Dionysius Exiguus – Liber de Paschate" 6341: 6335: 2975:It is first known to have been used by 2410:§ Gregorian reform of the computus 705:940 or about 29.530851 days. There are 610: 14: 11702: 11382:Ein Herz, das seinen Jesum lebend weiß 10566:Rite of Christian Initiation of Adults 8600: 8309:Attributed to Anatolius of Laodicea". 8195: 8163: 7643:The Ecclesiastical History of Eusebius 7443: 7408: 7283: 7271: 7254:from the original on 28 September 2020 7191:Pope Gregory XIII (24 February 1582). 6896: 6857: 6770: 6281: 5394: 2935:Example calculation using this table: 2211:before the epact mappings repeat; and 2095:days. Now the lunar cycle counts only 11586: 11504: 11495: 11374:Der Himmel lacht! Die Erde jubilieret 10026: 9382: 8919: 8877: 8635: 8563: 8345: 8311:Archive for History of Exact Sciences 8212: 7833:. Dublin: Hodges, Foster and Figgis. 7771:Archive for History of Exact Sciences 7629: 7600: 7372: 7355: 7217: 6911:from the original on 25 February 2021 6438: 6395:, p. 193, Book III, Chapter XXV. 6369:Blackburn & Holford-Strevens 1999 6342:Audette, Rodolphe (9 December 2007). 6257: 6096:Blackburn & Holford-Strevens 1999 6073:Blackburn & Holford-Strevens 1999 6028:Blackburn & Holford-Strevens 1999 5964:Blackburn & Holford-Strevens 1999 4241:= 29 elsewhere in the 19-year cycle. 3452:. In 1807, he replaced the condition 3348: 2826:date, Western, 1900-2199 (Gregorian) 2160:of a lunation and not full days. See 575:In quo completur mensi lunatio detur. 11292:I Will Mention the Loving-kindnesses 8689:Christliche und jüdische Ostertafeln 8682:The Didascalia Apostolorum in Syriac 8566:Journal for the History of Astronomy 8494:Journal for the History of Astronomy 8350:. Richmond, Virginia: Willmann-Bell. 8270:Journal for the History of Astronomy 7768: 7735: 7712: 7682: 7661: 7487: 7396:from the original on 6 December 2016 7319: 7163: 7040:from the original on 20 January 2018 6686: 6656:H M Nautical Almanac Office (1974). 6432: 6420: 6404: 6392: 6269: 6245: 6211: 6199: 6187: 6164: 6152: 6128: 4554:, in 1988 by Peter Duffett-Smith in 3948:= 6, replace 26 April with 19 April 2331: 1981:adding citations to reliable sources 1952: 896:and the origins of the Christian era 780:adding citations to reliable sources 751: 360:in 725. It may have been adopted by 11433:The Strife is O'er, the Battle Done 8122:and the Six Canons. On-line under: 8062:in Latin, with English translation) 7665:Oxford Dictionary of English Idioms 6557: 3471:was wrong in the original version. 159:." By the end of the 8th century, 24: 10749: 9896:All Saints' Eve / All Hallows' Eve 9890:All Saints' Day / All Hallows' Day 9345:All Saints' Eve / All Hallows' Eve 9339:All Saints' Day / All Hallows' Day 8650: 8423:"How ten divisions lead to Easter" 8222:. Bayer. Akad. d. Wissenschaften. 8151:from the original on 1 August 2020 8091:(May 1916). "The date of Easter". 7649:from the original on 14 April 2021 6897:Roegel, Denis (24 November 2004). 6634: 6516:from the original on 23 March 2019 6486:from the original on 16 April 2021 6350:from the original on 15 April 2021 3336:2114, 2133, 2152, 2171, and 2190. 3236:, or the weekday of 24 March. The 2938:The golden number for 1573 is 16 ( 2427: 729: 25: 11741: 8762: 8470:from the original on 9 April 2023 8437:from the original on 9 April 2023 8408:from the original on 9 April 2023 8375:from the original on 9 April 2023 8226:from the original on 9 April 2023 8183:from the original on 9 April 2023 8067:Domus Quaedam Vetus (July 2009). 8029:from the original on 9 April 2023 7989:from the original on 9 April 2023 7895:from the original on 9 April 2023 7870:from the original on 9 April 2023 7837:from the original on 9 April 2023 7756:from the original on 9 April 2023 7723:from the original on 9 April 2023 7462:] (in German). Archived from 7449: 7427:] (in German). Archived from 7414: 7076:from the original on 5 March 2016 6943:from the original on 9 April 2023 6878:from the original on 9 April 2023 6866:. No. 52. pp. 139–142. 6827:from the original on 9 April 2023 6478:Re-vision Radio's Tower of Song. 6444: 5189:, which gives the date directly. 4202:is mod 7 the same as subtracting 389:four times every 532 years. 11299:Russian Easter Festival Overture 10005: 8995: 7809:The Oxford Companion to the Year 7719:. Mediaeval Academy of America. 7696:from the original on 12 May 2019 7145:from the original on 27 May 2021 6566:Towards a Common Date for Easter 5880: 5389: 5386: 5383: 5380: 5225: 5222: 5219: 5149:In this algorithm, the variable 4480: 4449: 4398: 4371: 4348: 4284: 4148:A normal year has 365 days, but 1957: 756: 746:Gregorian reform of the calendar 405:churches between 1753 and 1845. 185:, to bring them back into line. 183:Gregorian reform of the calendar 8838:Dionysius Exiguus' Easter table 8421:O'Beirne, T H (30 March 1961). 8388:Nothaft, C. Philipp E. (2018). 8164:Ginzel, Friedrich Karl (1914). 8133:, with some parts of Clavius's 7568: 7493: 7223: 7184: 7157: 7130: 7118:. Joseph Bentham. 9 August 1765 7106: 7088: 7052: 7022: 6971: 6955: 6923: 6890: 6851: 6776: 6649: 6628: 6594: 6498: 6228: 6101: 6087: 6078: 6065: 6033: 6020: 6001: 5982: 5969: 5956: 5943: 5926: 5464:Orthodox (Eastern) Easter date 4190:works the same way. Increasing 3272:computed the exact time of all 2264:4 × 8 − 3 × 25 = 43 epact 2097:19 × 354 + 19 × 11 = 6,935 days 1968:needs additional citations for 767:needs additional citations for 651:", and is given by the formula 11418:Christ the Lord Is Risen Today 10289:Triumphal entry into Jerusalem 8241:Mathematische Semesterberichte 8015:. Cambridge University Press. 7936:, Book III, Chapters XVIII–XIX 7856:. Early English Text Society. 7452:"Berichtigung ze dem aufsatze" 6846:Dershowitz & Reingold 2008 6809:The Irish Astronomical Journal 6747:Dershowitz & Reingold 2008 6735:Dershowitz & Reingold 2008 6711:Dershowitz & Reingold 2008 6447:"The Orthodox Church Calendar" 6217: 6170: 5846:Gregorian calendar equivalent 4252: 2221:−43 × (5,700,000/10,000) 270:falling on or after 21 March. 13: 1: 8603:The English Historical Review 8355:Mosshammer, Alden A. (2008). 8168:. Leipzig, Germany: Hinrichs. 7883:Clavius, Christopher (1603). 7126:– via Internet Archive. 5914: 5820:Easter Day (Julian calendar) 4249:Anonymous Gregorian algorithm 4114:is determined by calculating 3343: 2499:, which was developed by the 2493:was based on the Alexandrian 2361:Calendar (New Style) Act 1750 2205:× 100 = −43 ≡ 17 mod 30 2070:Dates of Easter, 1900 to 2199 2059:council, on the authority of 1933:for the period 1900 to 2199. 426:observatory on the island of 188: 9304:Nativity of John the Baptist 8749:Weisstein, Eric. (c. 2006) " 8453:Encyclopaedia of Monasticism 8361:. Oxford: University Press. 7417:"Berechnung des Osterfestes" 6803:Davison, Michael E. (1980). 6115: 5908:Reform of the date of Easter 5898: – German mathematician 1299:reform to the year 2200 (by 536: 74:for 'computation'). 7: 11423:Jesus Christ Is Risen Today 8850:Nonae Aprilis norunt quinos 8394:. Oxford University Press. 8173:Grotefend, Hermann (1891). 7812:. Oxford University Press. 7030:"The Length of the Seasons" 6642:Online Etymology Dictionary 5873: 5324: 5169:published a version of the 5050: 4524:The Ecclesiastical Calendar 4102:The second part is finding 3392:In 1800, the mathematician 3003: 2944:1574 ÷ 19 = 82 remainder 16 548: "intercalary days"). 383:Assyrian Church of the East 10: 11746: 11541:Feast of Christ the Priest 11358:Christ lag in Todes Banden 10697:San Cristóbal de La Laguna 10012:Catholic Church portal 8586:10.1177/002182868401500302 8559:. London: Longsman, Green. 8514:10.1177/002182868601700204 8456:. Routledge. p. 468. 8290:10.1177/002182869302400304 7969:Declercq, Georges (2000). 7622: 7456:Astronomische Abhandlungen 7421:Astronomische Abhandlungen 7298:, pp. 136–7, 320–322. 6858:Walker, George W. (1944). 6602: 3246:"Paradoxical" Easter dates 2209:100 × 30 = 3,000 centuries 1948: 1287:used as arbitrary symbols. 743: 524: 273: 239:. Later Jews adopted the 192: 28: 11624: 11564:Feast of the Sacred Heart 11554: 11486: 11461: 11441: 11408: 11341: 11313: 11279: 11272: 11252: 11221: 11191: 11136: 11127: 11054: 11045: 10996: 10958: 10929: 10860: 10834: 10825: 10798: 10758: 10740: 10633:Barcellona Pozzo di Gotto 10607: 10589: 10582: 10525: 10507: 10498: 10400: 10380:Mass of the Lord's Supper 10345: 10332: 10323: 10297: 10279: 10270: 10235: 10203: 10157: 10105: 10082: 10073: 10064: 9945: 9916: 9793: 9721: 9696:Mass of the Lord's Supper 9671: 9639: 9579: 9551: 9542: 9507: 9468: 9408: 9404: 9378: 9272: 9193: 9168:Mass of the Lord's Supper 9148: 9078: 9060: 9004: 8993: 8945: 8941: 8915: 8693:Weidmannsche Buchhandlung 8680:Gibson, Margaret Dunlop, 8631:. London: Bell and Daldy. 8253:10.1007/s00591-003-0063-0 8141:van Gent, Robert (2019), 8113:The History of the Church 8041:Dionysius Exiguus (525): 7941:16 September 2009 at the 7791:10.1007/s00407-004-0078-5 7716:Bedae Opera de Temporibus 7575:"Letters to the Editor". 7296:Byrhtferth of Ramsey 1995 6071:Can be verified by using 5845: 5819: 5430: 5133: 3939: 3922: 3765: 2323:British Calendar Act and 1939:Lunar month#Synodic month 1428: 1425: 1417: 1414: 1404: 1401: 864:in 1582, a corresponding 737: 666:That is, the year number 489: 463:World Council of Churches 387:Eastern Orthodox Churches 376:Non-Chalcedonian Churches 345:As a result of the Irish 11390:Erfreut euch, ihr Herzen 11333:Victimae paschali laudes 11305:Salzburg Easter Festival 9070:Presentation of the Lord 8826:6 September 2003 at the 8012:Calendrical Calculations 7916:. English translations: 7853:Byrhtferth's Enchiridion 7827:Butcher, Samuel (1877). 7662:Ayto, John, ed. (2009). 7308:Domus Quaedam Vetus 2009 6075:, p. 825, Table 7. 5940:, pp. 217, 227–228. 5919: 5451:Jean Meeus, in his book 5447:Meeus's Julian algorithm 4551:The Old Farmer's Almanac 4254:Original format of 1876 3956:Gauss's Easter algorithm 3388:Gauss's Easter algorithm 3199: 3188: 2929:April 2015 lunar eclipse 1920:However, 19 uncorrected 735:Gregorian reform of the 401:and was adopted by most 268:ecclesiastical full moon 203:Easter commemorates the 199:List of dates for Easter 106:. The complexity of the 31:List of dates for Easter 11559:Feast of Corpus Christi 10973:Fourth Sunday of Easter 10934:Second Sunday of Easter 9957:holy days of obligation 9869:Exaltation of the Cross 9493:Octave Day of Christmas 9333:Exaltation of the Cross 8348:Astronomical Algorithms 7926:27 January 2013 at the 7137:Book of Common Prayer. 6860:"Rare Dates for Easter" 6618:A Greek–English Lexicon 6248:, pp. xxxv–xxxvii. 5453:Astronomical Algorithms 4566:Astronomical Algorithms 1247:ecclesiastical new moon 455:Revised Julian calendar 299:was converted from the 253:First Council of Nicaea 11618:religion and mythology 11366:Der Friede sei mit dir 11016:Feast of the Ascension 10983:Fifth Sunday of Easter 10968:Third Sunday of Easter 10702:Santa Cruz de La Palma 10434:Descent from the Cross 10390:Stripping of the Altar 9830:Saint John the Baptist 8672:18 August 2007 at the 8147:, Utrecht University, 8111:Eusebius of Caesarea, 7460:Astronomical Treatises 7425:Astronomical Treatises 7238:Grand Rapids, Michigan 6662:. London. p. 422. 6272:, pp. xxxviii–xl. 6058: 6013: 5994: 3324: 3315: 3308: 3302: 3286: 3264: 3254:(northern hemisphere) 3238: 3232: 3226: 3222: 2989: 2977:Annianus of Alexandria 2516: 2495: 2489: 2477: 2463:Alexander de Villa Dei 2457: 2437: 2371:Statutes at Large 1765 2346:Act of Uniformity 1662 2250: 2244: 2233:Explanatory Supplement 2125: 2119: 2113: 2083: 2071: 1901: 1304: 1288: 1264: 1238: 892: 876: 866: 856: 691:76 × 365 + 19 = 27,759 642: 633: 616: 601: 595: 589: 583: 574: 568: 370: 320:Victorius of Aquitaine 295: 262: 161: 155: 145: 64: 51: 11720:Christian terminology 10763:Resurrection of Jesus 10422:Stations of the Cross 9836:Saints Peter and Paul 9742:Sundays after Easter 9449:Immaculate Conception 9310:Saints Peter and Paul 8981:Immaculate Conception 8129:29 April 2012 at the 7950:Ricerche Astronomiche 7739:The Reckoning of Time 7631:Anatolius of Laodicea 7583:: 91. December 1977. 6609:Liddell, Henry George 6435:, pp. lix–lxiii. 6260:, Book 7, Chapter 33. 6009:Book of Common Prayer 5990:Book of Common Prayer 3969:contains the terms 19 3002: 2435: 2366:Book of Common Prayer 2341:Book of Common Prayer 2325:Book of Common Prayer 2290:29 days 12 hr 44 min 2242: 2081: 2069: 1294: 1278: 1262:for that year – from 744:Further information: 561: 559:provides the detail: 399:Roman Catholic Church 288:Anatolius of Laodicea 205:resurrection of Jesus 136:The Reckoning of Time 41: 11229:Ethiopia and Eritrea 11033:Matthias the Apostle 10429:Crucifixion of Jesus 10180:First Sunday of Lent 10175:Temptation of Christ 9908:Presentation of Mary 9534:Purification of Mary 9357:Presentation of Mary 8657:Borst, Arno (1993). 8615:10.1093/ehr/x.xl.699 8346:Meeus, Jean (1991). 6506:"Seasons calculator" 6167:, pp. xviii–xx. 5902:Crucifixion darkness 3458:+ 11) mod 30 < 19 3394:Carl Friedrich Gauss 2512:eastern Roman Empire 2505:Alexandrian calendar 2501:Church of Alexandria 2225:Magnus Georg Paucker 2217:(5,700,000/19) × 235 1977:improve this article 776:improve this article 621:19 × 11 = 209 ≡ 29 ( 605:, or unequal moons." 301:Alexandrian calendar 257:Church of Alexandria 11710:Calendar algorithms 11474:Television episodes 10944:Divine Mercy Sunday 10835:Liturgical features 10243:Ave Regina caelorum 9925:Ordinary Procession 9529:Baptism of the Lord 9223:Divine Mercy Sunday 9052:Baptism of the Lord 9039:Mary, Mother of God 8782:De Temporum Ratione 8741:17 May 2022 at the 8725:17 May 2022 at the 8704:15 May 2019 at the 8578:1984JHA....15..177T 8543:1924PA.....32..407S 8506:1986JHA....17..109S 8323:1996AHES...49..285M 8307:De ratione paschali 8282:1993JHA....24..204M 8196:Grumel, V. (1958). 8105:1916Obs....39..215D 8052:3 June 2008 at the 8007:Reingold, Edward M. 7962:1949RA......2..109D 7934:Life of Constantine 7783:2004AHES...58..439B 7639:quoted by Eusebius" 7589:1977JBAA...88...87. 7553:, pp. 215–219. 7490:, pp. 439–452. 7337:, pp. 275–277. 7199:on 13 February 2006 7193:"Inter Gravissimas" 7172:on 7 September 2015 7019:, pp. 109–118. 7007:, pp. 109–116. 6872:1944PA.....52..139W 6821:1980IrAJ...14..156D 6737:, pp. 114–115. 6713:, pp. 113–117. 6554:, pp. 407–411. 6459:on 26 November 2012 6383:, pp. 204–224. 6296:, pp. 285–320. 6284:, pp. 699–710. 6039:See especially the 5951:De ratione paschali 5888:Christianity portal 5794:+ 114) mod 31) + 1 5465: 4259: 3954:An analysis of the 3879:April Easter day = 3855:March Easter day = 3197:Quaternae kalendae 2968:is also called the 2722:Gregorian calendar 2330:The portion of the 2231:of 1931 and in the 2213:3,000 × 19 = 57,000 1890:. Where the labels 689:), has a length of 619:epact increases by 305:Cyril of Alexandria 255:(AD 325), the 225:Christian calendars 221:northern hemisphere 171:Protestant churches 11449:Surrexit a mortuis 11006:Ascension of Jesus 10478:Good Friday prayer 10375:Farewell Discourse 10135:Holy Face of Jesus 9985:Liturgical colours 9499:Holy Name of Jesus 8755:World of Astronomy 8733:Walker, George W, 8717:Walker, George W, 8331:10.1007/bf00374701 8003:Dershowitz, Nachum 7563:Spencer Jones 1922 7524:has generic name ( 7390:webdoc.sub.gwdg.de 7233:The Synodal Letter 7139:"Tables and Rules" 6445:Kekis, Theoharis. 5463: 5165:+ 1). In 1961 the 5157:= 3, or April for 4253: 3985:The expression (19 3349:Note on operations 3203:quinque coniciunt, 3142:notantur septenis. 3087:cubant in quadris. 2442:eastern Christians 2438: 2275:tidal deceleration 2245: 2164:for a discussion. 2084: 2072: 1305: 1301:Camille Flammarion 1297:Gregorian calendar 1289: 862:Gregorian calendar 347:Synod of Magh-Lene 338:while her husband 280:Hippolytus of Rome 243:to predict future 195:Easter controversy 179:Oriental Orthodoxy 104:Gregorian calendar 52: 11697: 11696: 11684:Wheel of the Year 11580: 11579: 11576: 11575: 11572: 11571: 11482: 11481: 11457: 11456: 11428:O filii et filiae 11268: 11267: 11217: 11216: 11151:in Slavic culture 11119:Scoppio del carro 11041: 11040: 10954: 10953: 10821: 10820: 10736: 10735: 10732: 10731: 10578: 10577: 10574: 10573: 10512:Harrowing of Hell 10266: 10265: 10227:Friday of Sorrows 10153: 10152: 10020: 10019: 9941: 9940: 9937: 9936: 9927:according to the 9879:Maternity of Mary 9874:Autumn Ember Days 9808:Summer Ember Days 9667: 9666: 9619:Spring Ember Days 9460:Winter Ember Days 9374: 9373: 9370: 9369: 8987:December 17 to 23 8751:Paschal Full Moon 8638:Regiomontanusbote 8556:General Astronomy 8551:Spencer Jones, H. 8531:Popular Astronomy 8463:978-1-57958-090-2 8401:978-0-19-879955-9 8368:978-0-19-954312-0 8120:Inter Gravissimas 8089:Downing, A. M. W. 8080:978-1-110-75828-9 8047:(full Latin text) 8043:Liber de Paschate 8022:978-0-521-88540-9 7982:978-2-503-51050-7 7863:978-0-19-722416-8 7819:978-0-19-214231-3 7749:978-0-85323-693-1 7706:Project Gutenberg 7675:978-0-19-954378-6 7603:, pp. 67–68. 7322:, pp. xlvii. 7098:Statutes at Large 6864:Popular Astronomy 6635:Harper, Douglas. 5871: 5870: 5444: 5443: 5431:Gregorian Easter 5147: 5146: 5134:Gregorian Easter 4560:, and in 1991 by 4544:, in 1977 by the 4542:General Astronomy 4514: 4513: 3973:and the constant 3952: 3951: 3786:are unnecessary) 3460:with the simpler 3280:according to the 3221: 3220: 3211:quindene constant 3186:speramus duobus. 2985:Dionysius Exiguus 2925: 2924: 2720:date, 1900–2099, 2526:Iberian Peninsula 2479:Inter gravissimas 2053: 2052: 2045: 2027: 1867: 1866: 1217: 1216: 854:As reforming the 852: 851: 844: 826: 553:intercalary month 547: 533: 481:without the Nisan 411:Rudolphine Tables 309:Dionysius Exiguus 211:. In the Hebrew 80:Paschal full moon 44:Ravenna Cathedral 16:(Redirected from 11737: 11607: 11600: 11593: 11584: 11583: 11514:Pentecost Sunday 11502: 11501: 11493: 11492: 11277: 11276: 11134: 11133: 11052: 11051: 10867: 10866: 10832: 10831: 10756: 10755: 10747: 10746: 10594:Burning of Judas 10587: 10586: 10505: 10504: 10471:Easter Sepulchre 10410:Passion of Jesus 10330: 10329: 10277: 10276: 10194:Mothering Sunday 10080: 10079: 10071: 10070: 10047: 10040: 10033: 10024: 10023: 10010: 10009: 9964:Older calendars 9864:Nativity of Mary 9795:Pentecost Season 9549: 9548: 9470:Christmas Season 9406: 9405: 9380: 9379: 9328:Nativity of Mary 9006:Christmas Season 8999: 8943: 8942: 8917: 8916: 8898: 8891: 8884: 8875: 8874: 8819: 8736:Easter Intervals 8720:Easter Intervals 8645: 8632: 8623:Wheatly, Charles 8618: 8597: 8560: 8546: 8525: 8488: 8479: 8477: 8475: 8446: 8444: 8442: 8417: 8415: 8413: 8384: 8382: 8380: 8351: 8342: 8301: 8264: 8235: 8233: 8231: 8209: 8192: 8190: 8188: 8169: 8159: 8158: 8156: 8108: 8084: 8073:. BiblioBazaar. 8038: 8036: 8034: 7998: 7996: 7994: 7965: 7914:Vita Constantini 7904: 7902: 7900: 7879: 7877: 7875: 7846: 7844: 7842: 7823: 7802: 7765: 7763: 7761: 7732: 7730: 7728: 7709: 7703: 7701: 7679: 7657: 7656: 7654: 7616: 7610: 7604: 7598: 7592: 7591: 7572: 7566: 7560: 7554: 7548: 7542: 7536: 7530: 7529: 7523: 7519: 7517: 7509: 7502:"To find Easter" 7497: 7491: 7485: 7476: 7475: 7473: 7471: 7447: 7441: 7440: 7438: 7436: 7412: 7406: 7405: 7403: 7401: 7382: 7376: 7375:, pp. 5–10. 7370: 7359: 7353: 7338: 7332: 7323: 7317: 7311: 7305: 7299: 7293: 7287: 7281: 7275: 7269: 7263: 7262: 7261: 7259: 7227: 7221: 7215: 7209: 7208: 7206: 7204: 7195:. Archived from 7188: 7182: 7181: 7179: 7177: 7168:. Archived from 7164:Stockton, J. R. 7161: 7155: 7154: 7152: 7150: 7134: 7128: 7127: 7125: 7123: 7110: 7104: 7092: 7086: 7085: 7083: 7081: 7075: 7064: 7056: 7050: 7049: 7047: 7045: 7026: 7020: 7014: 7008: 7002: 6996: 6995: 6975: 6969: 6968: 6959: 6953: 6952: 6950: 6948: 6927: 6921: 6920: 6918: 6916: 6910: 6903: 6894: 6888: 6887: 6885: 6883: 6855: 6849: 6843: 6837: 6836: 6834: 6832: 6800: 6783: 6780: 6774: 6768: 6762: 6756: 6750: 6744: 6738: 6732: 6726: 6720: 6714: 6708: 6702: 6696: 6690: 6689:, pp. xlvi. 6684: 6678: 6677: 6671: 6663: 6653: 6647: 6646: 6632: 6626: 6605: 6604: 6598: 6592: 6582: 6576: 6574: 6573:on 30 March 2018 6561: 6555: 6549: 6543: 6537: 6526: 6525: 6523: 6521: 6510:Time and Date AS 6502: 6496: 6495: 6493: 6491: 6475: 6469: 6468: 6466: 6464: 6458: 6451: 6442: 6436: 6430: 6424: 6423:, p. xxvii. 6418: 6412: 6402: 6396: 6390: 6384: 6378: 6372: 6366: 6360: 6359: 6357: 6355: 6339: 6333: 6327: 6321: 6315: 6309: 6303: 6297: 6291: 6285: 6279: 6273: 6267: 6261: 6255: 6249: 6243: 6237: 6232: 6226: 6221: 6215: 6209: 6203: 6202:, p. xxxvi. 6197: 6191: 6185: 6179: 6174: 6168: 6162: 6156: 6155:, p. xviii. 6150: 6144: 6138: 6132: 6126: 6109: 6105: 6099: 6091: 6085: 6082: 6076: 6069: 6063: 6061: 6037: 6031: 6024: 6018: 6016: 6005: 5999: 5997: 5986: 5980: 5973: 5967: 5960: 5954: 5947: 5941: 5930: 5896:Christian Zeller 5890: 5885: 5884: 5754: 5751: 5749: 5748: 5745: 5742: 5729: 5466: 5462: 5362: 5359: 5357: 5356: 5353: 5350: 5333: 5311: 5308: 5306: 5305: 5302: 5299: 5283: 5261: 5258: 5256: 5255: 5252: 5249: 5239: 5192: 5191: 5088: 5085: 5083: 5082: 5079: 5076: 5059: 5010: 5007: 5005: 5004: 5001: 4998: 4982: 4901: 4898: 4896: 4895: 4892: 4889: 4881: 4823: 4820: 4818: 4817: 4814: 4811: 4798: 4776: 4773: 4771: 4770: 4767: 4764: 4755: 4710: 4707: 4705: 4704: 4701: 4698: 4690: 4645: 4642: 4640: 4639: 4636: 4633: 4625: 4571: 4570: 4538:H. Spencer Jones 4260: 4226: 4186:The expression 6 4170: 4151: 4144: 4133: 4098: 4066: 4054: 4034: 4011: 3692: 3689: 3687: 3686: 3683: 3680: 3672: 3646: 3643: 3641: 3640: 3637: 3634: 3625: 3598: 3595: 3593: 3592: 3589: 3586: 3578: 3474: 3473: 3466: 3459: 3451: 3450: 3447: 3445: 3444: 3441: 3438: 3430: 3426: 3424: 3423: 3420: 3417: 3383: 3382: 3327: 3318: 3311: 3305: 3289: 3282:Alfonsine Tables 3267: 3241: 3235: 3229: 3200: 3189: 3175:docte quaternis, 3161:kalendas Aprilis 3153:panditur quinis, 3131:porro quaternis, 3109:sortiunt ternos, 3043:namque dipondio. 3021:assim depromunt. 3018:octonae kalendae 3004: 2992: 2963: 2962:4 × 7 × 19 = 532 2953: 2945: 2941: 2545: 2544: 2533:Celtic monastery 2519: 2498: 2492: 2482: 2460: 2344:(decreed by the 2310: 2308: 2306: 2305: 2302: 2299: 2295: 2268:Lichtenberg 2003 2265: 2253: 2229:Nautical Almanac 2222: 2218: 2214: 2210: 2206: 2204: 2202: 2201: 2198: 2195: 2188: 2186: 2185: 2182: 2179: 2170: 2159: 2157: 2156: 2153: 2150: 2130: 2122: 2116: 2098: 2089:dominical letter 2048: 2041: 2037: 2034: 2028: 2026: 1992:"Date of Easter" 1985: 1961: 1953: 1943:ΔT (timekeeping) 1927:lunar correction 1915:solar correction 1904: 1307: 1306: 1267: 1260:dominical letter 1241: 1223: 919: 918: 895: 879: 869: 859: 847: 840: 836: 833: 827: 825: 791:"Date of Easter" 784: 760: 752: 740: 739: 708: 704: 700: 696: 692: 645: 636: 630: 626: 614: 604: 598: 592: 586: 577: 571: 543: 541: 529: 527: 526: 509: 508: 484: 480: 465:Consultation in 448: 441: 437: 373: 298: 293:The Alexandrian 265: 164: 158: 148: 69: 21: 11745: 11744: 11740: 11739: 11738: 11736: 11735: 11734: 11700: 11699: 11698: 11693: 11620: 11611: 11581: 11568: 11550: 11478: 11453: 11437: 11404: 11337: 11309: 11285:Easter Oratorio 11264: 11248: 11213: 11187: 11123: 11037: 10992: 10950: 10939:Doubting Thomas 10925: 10856: 10817: 10794: 10790:Sunrise service 10728: 10603: 10570: 10521: 10494: 10461:Burial of Jesus 10396: 10347:Maundy Thursday 10341: 10319: 10293: 10262: 10248:Passion (music) 10231: 10199: 10149: 10101: 10060: 10051: 10021: 10016: 10004: 9933: 9912: 9884:Christ the King 9852:Transfiguration 9789: 9717: 9673:Paschal Triduum 9663: 9635: 9575: 9538: 9509:Epiphany Season 9503: 9464: 9400: 9385:Tridentine Mass 9366: 9362:Christ the King 9316:Transfiguration 9268: 9189: 9150:Paschal Triduum 9144: 9074: 9056: 9000: 8991: 8937: 8911: 8909:Catholic Church 8905:Liturgical year 8902: 8828:Wayback Machine 8817: 8765: 8760: 8743:Wayback Machine 8727:Wayback Machine 8706:Wayback Machine 8695:, Berlin, 1905. 8674:Wayback Machine 8653: 8651:Further reading 8648: 8500:(49): 109–118. 8473: 8471: 8464: 8440: 8438: 8411: 8409: 8402: 8378: 8376: 8369: 8229: 8227: 8186: 8184: 8154: 8152: 8131:Wayback Machine 8093:The Observatory 8081: 8054:Wayback Machine 8032: 8030: 8023: 7992: 7990: 7983: 7943:Wayback Machine 7928:Wayback Machine 7898: 7896: 7873: 7871: 7864: 7840: 7838: 7820: 7759: 7757: 7750: 7726: 7724: 7699: 7697: 7676: 7652: 7650: 7625: 7620: 7619: 7611: 7607: 7599: 7595: 7574: 7573: 7569: 7561: 7557: 7549: 7545: 7537: 7533: 7521: 7520: 7511: 7510: 7498: 7494: 7486: 7479: 7469: 7467: 7466:on 12 July 2012 7450:Kothe, Jochen. 7448: 7444: 7434: 7432: 7415:Kothe, Jochen. 7413: 7409: 7399: 7397: 7384: 7383: 7379: 7371: 7362: 7354: 7341: 7333: 7326: 7318: 7314: 7306: 7302: 7294: 7290: 7282: 7278: 7270: 7266: 7257: 7255: 7248: 7228: 7224: 7216: 7212: 7202: 7200: 7189: 7185: 7175: 7173: 7162: 7158: 7148: 7146: 7135: 7131: 7121: 7119: 7112: 7111: 7107: 7093: 7089: 7079: 7077: 7073: 7062: 7058: 7057: 7053: 7043: 7041: 7028: 7027: 7023: 7015: 7011: 7003: 6999: 6992: 6976: 6972: 6961: 6960: 6956: 6946: 6944: 6928: 6924: 6914: 6912: 6908: 6901: 6895: 6891: 6881: 6879: 6856: 6852: 6844: 6840: 6830: 6828: 6801: 6786: 6781: 6777: 6769: 6765: 6757: 6753: 6745: 6741: 6733: 6729: 6723:Mosshammer 2008 6721: 6717: 6709: 6705: 6697: 6693: 6685: 6681: 6665: 6664: 6654: 6650: 6633: 6629: 6623:Perseus Project 6599: 6595: 6583: 6579: 6563: 6562: 6558: 6550: 6546: 6538: 6529: 6519: 6517: 6504: 6503: 6499: 6489: 6487: 6476: 6472: 6462: 6460: 6456: 6449: 6443: 6439: 6431: 6427: 6419: 6415: 6403: 6399: 6391: 6387: 6379: 6375: 6367: 6363: 6353: 6351: 6340: 6336: 6328: 6324: 6316: 6312: 6304: 6300: 6292: 6288: 6280: 6276: 6268: 6264: 6256: 6252: 6244: 6240: 6233: 6229: 6222: 6218: 6210: 6206: 6198: 6194: 6186: 6182: 6175: 6171: 6163: 6159: 6151: 6147: 6139: 6135: 6127: 6123: 6118: 6113: 6112: 6106: 6102: 6098:, p. 813). 6092: 6088: 6083: 6079: 6070: 6066: 6038: 6034: 6030:, p. 810). 6025: 6021: 6006: 6002: 5987: 5983: 5977:local mean time 5974: 5970: 5966:, p. 794. 5961: 5957: 5948: 5944: 5938:Mosshammer 2008 5931: 5927: 5922: 5917: 5886: 5879: 5876: 5752: 5746: 5743: 5733: 5732: 5730: 5727: 5449: 5360: 5354: 5351: 5337: 5336: 5334: 5331: 5309: 5303: 5300: 5287: 5286: 5284: 5281: 5259: 5253: 5250: 5243: 5242: 5240: 5237: 5086: 5080: 5077: 5063: 5062: 5060: 5057: 5008: 5002: 4999: 4986: 4985: 4983: 4980: 4899: 4893: 4890: 4885: 4884: 4882: 4879: 4821: 4815: 4812: 4802: 4801: 4799: 4796: 4774: 4768: 4765: 4759: 4758: 4756: 4753: 4708: 4702: 4699: 4694: 4693: 4691: 4688: 4643: 4637: 4634: 4629: 4628: 4626: 4623: 4533:The Observatory 4251: 4218: 4217:The expression 4194:by some number 4179:becomes 0 and 2 4161: 4149: 4135: 4115: 4092: 4056: 4044: 4025: 4010:12 × 29.5 = 354 4009: 3690: 3684: 3681: 3676: 3675: 3673: 3670: 3644: 3638: 3635: 3629: 3628: 3626: 3623: 3596: 3590: 3587: 3582: 3581: 3579: 3576: 3461: 3453: 3448: 3442: 3439: 3434: 3433: 3431: 3428: 3421: 3418: 3413: 3412: 3410: 3401: 3390: 3380: 3379: 3351: 3346: 3248: 3214:tribus adeptis. 3198: 3187: 3183:speciem quintam 3164:exprimunt unus. 3098:septem eligunt, 3073:Ternas kalendas 3065:capiunt ternos. 3054:ambiunt quinos, 3040:nonae quaternae 2981:Dionysian cycle 2970:Victorian cycle 2961: 2951: 2943: 2940:1573 + 1 = 1574 2939: 2920: 2915: 2910: 2905: 2900: 2895: 2890: 2885: 2880: 2875: 2870: 2865: 2860: 2855: 2850: 2845: 2840: 2835: 2830: 2825: 2823: 2816: 2811: 2806: 2801: 2796: 2791: 2786: 2781: 2776: 2771: 2766: 2761: 2756: 2751: 2746: 2741: 2736: 2731: 2726: 2721: 2719: 2717: 2710: 2705: 2700: 2695: 2690: 2685: 2680: 2675: 2670: 2665: 2660: 2655: 2650: 2645: 2640: 2635: 2630: 2625: 2620: 2615: 2613: 2549: 2430: 2428:Julian calendar 2393:happens upon a 2332:tabular methods 2328: 2303: 2300: 2297: 2296: 2293: 2291: 2289: 2263: 2220: 2216: 2212: 2208: 2199: 2196: 2193: 2192: 2190: 2183: 2180: 2177: 2176: 2174: 2172: 2168: 2154: 2151: 2148: 2147: 2145: 2127:Missale Romanum 2096: 2049: 2038: 2032: 2029: 1986: 1984: 1974: 1962: 1951: 1281:Julian calendar 1221: 1212: 1207: 1202: 1197: 1192: 1187: 1182: 1177: 1172: 1167: 1162: 1157: 1152: 1147: 1142: 1137: 1132: 1127: 1122: 1117: 1115: 985: 848: 837: 831: 828: 785: 783: 773: 761: 748: 742: 732: 730:Tabular methods 706: 702: 698: 694: 690: 687:Callippic cycle 628: 620: 615: 609: 579: 572: 557:Charles Wheatly 538:épaktai hēmérai 506: 504: 492: 482: 474: 446: 439: 431: 416:Johannes Kepler 351:Synod of Whitby 276: 201: 191: 167:Catholic Church 128:Hebrew calendar 34: 23: 22: 15: 12: 11: 5: 11743: 11733: 11732: 11730:Spring equinox 11727: 11725:Autumn equinox 11722: 11717: 11715:Date of Easter 11712: 11695: 11694: 11692: 11691: 11686: 11681: 11676: 11671: 11666: 11661: 11656: 11651: 11646: 11641: 11636: 11631: 11625: 11622: 11621: 11610: 11609: 11602: 11595: 11587: 11578: 11577: 11574: 11573: 11570: 11569: 11567: 11566: 11561: 11555: 11552: 11551: 11549: 11548: 11546:Trinity Sunday 11543: 11538: 11533: 11528: 11523: 11522: 11521: 11510: 11508: 11499: 11490: 11484: 11483: 11480: 11479: 11477: 11476: 11471: 11465: 11463: 11459: 11458: 11455: 11454: 11452: 11451: 11445: 11443: 11439: 11438: 11436: 11435: 11430: 11425: 11420: 11414: 11412: 11406: 11405: 11403: 11402: 11400:, BWV 145 11394: 11386: 11384:, BWV 134 11378: 11370: 11368:, BWV 158 11362: 11354: 11345: 11343: 11339: 11338: 11336: 11335: 11330: 11325: 11317: 11315: 11311: 11310: 11308: 11307: 11302: 11295: 11288: 11280: 11274: 11270: 11269: 11266: 11265: 11263: 11262: 11256: 11254: 11250: 11249: 11247: 11246: 11241: 11236: 11231: 11225: 11223: 11219: 11218: 11215: 11214: 11212: 11211: 11206: 11201: 11195: 11193: 11189: 11188: 11186: 11185: 11180: 11175: 11170: 11165: 11160: 11155: 11154: 11153: 11143: 11137: 11131: 11125: 11124: 11122: 11121: 11116: 11113: 11111:Rouketopolemos 11108: 11103: 11098: 11093: 11088: 11083: 11078: 11077: 11076: 11066: 11061: 11055: 11049: 11043: 11042: 11039: 11038: 11036: 11035: 11030: 11025: 11020: 11019: 11018: 11013: 11002: 11000: 10994: 10993: 10991: 10990: 10985: 10980: 10975: 10970: 10965: 10959: 10956: 10955: 10952: 10951: 10949: 10948: 10947: 10946: 10941: 10930: 10927: 10926: 10924: 10923: 10918: 10913: 10908: 10903: 10901:Easter Tuesday 10898: 10897: 10896: 10891: 10881: 10875: 10873: 10864: 10858: 10857: 10855: 10854: 10849: 10847:Pentecostarion 10844: 10838: 10836: 10829: 10823: 10822: 10819: 10818: 10816: 10815: 10810: 10804: 10802: 10796: 10795: 10793: 10792: 10787: 10785:Paschal Homily 10782: 10780:Road to Emmaus 10777: 10772: 10771: 10770: 10759: 10753: 10744: 10738: 10737: 10734: 10733: 10730: 10729: 10727: 10726: 10725: 10724: 10719: 10714: 10709: 10704: 10699: 10694: 10689: 10684: 10674: 10673: 10672: 10664: 10659: 10658: 10657: 10647: 10642: 10641: 10640: 10638:Ruvo di Puglia 10635: 10627: 10622: 10621: 10620: 10611: 10609: 10605: 10604: 10602: 10601: 10596: 10590: 10584: 10580: 10579: 10576: 10575: 10572: 10571: 10569: 10568: 10563: 10558: 10557: 10556: 10549: 10542: 10535:Paschal candle 10531: 10529: 10523: 10522: 10520: 10519: 10514: 10508: 10502: 10496: 10495: 10493: 10492: 10487: 10486: 10485: 10475: 10474: 10473: 10468: 10458: 10457: 10456: 10451: 10446: 10441: 10431: 10426: 10425: 10424: 10419: 10406: 10404: 10398: 10397: 10395: 10394: 10393: 10392: 10387: 10382: 10377: 10372: 10367: 10357: 10351: 10349: 10343: 10342: 10340: 10339: 10333: 10327: 10321: 10320: 10318: 10317: 10315:Holy Wednesday 10312: 10307: 10301: 10299: 10295: 10294: 10292: 10291: 10285: 10283: 10274: 10268: 10267: 10264: 10263: 10261: 10260: 10255: 10250: 10245: 10239: 10237: 10233: 10232: 10230: 10229: 10224: 10221:Lenten shrouds 10213:Passion Sunday 10209: 10207: 10201: 10200: 10198: 10197: 10190:Laetare Sunday 10187: 10182: 10177: 10172: 10167: 10161: 10159: 10155: 10154: 10151: 10150: 10148: 10147: 10142: 10137: 10132: 10127: 10125:Shrove Tuesday 10122: 10116: 10114: 10103: 10102: 10100: 10099: 10094: 10089: 10083: 10077: 10068: 10062: 10061: 10050: 10049: 10042: 10035: 10027: 10018: 10017: 10015: 10014: 10002: 9997: 9992: 9987: 9982: 9981: 9980: 9975: 9970: 9961: 9960: 9950: 9946: 9943: 9942: 9939: 9938: 9935: 9934: 9932: 9931: 9921: 9917: 9914: 9913: 9911: 9910: 9905: 9903:All Souls' Day 9900: 9899: 9898: 9886: 9881: 9876: 9871: 9866: 9861: 9854: 9849: 9844: 9842:Precious Blood 9839: 9832: 9827: 9822: 9819:Corpus Christi 9815: 9813:Trinity Sunday 9810: 9805: 9799: 9797: 9791: 9790: 9788: 9787: 9780: 9775: 9774: 9773: 9768: 9763: 9758: 9753: 9748: 9740: 9739: 9738: 9727: 9725: 9719: 9718: 9716: 9715: 9710: 9705: 9700: 9699: 9698: 9693: 9683: 9677: 9675: 9669: 9668: 9665: 9664: 9662: 9661: 9656: 9651: 9649:Passion Sunday 9645: 9643: 9637: 9636: 9634: 9633: 9628: 9621: 9616: 9615: 9614: 9609: 9604: 9599: 9591: 9585: 9583: 9577: 9576: 9574: 9573: 9568: 9563: 9557: 9555: 9546: 9540: 9539: 9537: 9536: 9531: 9526: 9521: 9513: 9511: 9505: 9504: 9502: 9501: 9496: 9489: 9488: 9487: 9474: 9472: 9466: 9465: 9463: 9462: 9457: 9455:Greater Ferias 9452: 9445: 9440: 9439: 9438: 9433: 9428: 9423: 9414: 9412: 9402: 9401: 9376: 9375: 9372: 9371: 9368: 9367: 9365: 9364: 9359: 9354: 9352:All Souls' Day 9349: 9348: 9347: 9335: 9330: 9325: 9318: 9313: 9306: 9301: 9296: 9291: 9288:Corpus Christi 9284: 9282:Trinity Sunday 9278: 9276: 9270: 9269: 9267: 9266: 9261: 9254: 9253: 9252: 9247: 9242: 9237: 9232: 9227: 9226: 9225: 9212: 9211: 9210: 9199: 9197: 9191: 9190: 9188: 9187: 9182: 9177: 9172: 9171: 9170: 9165: 9154: 9152: 9146: 9145: 9143: 9142: 9137: 9132: 9127: 9120: 9119: 9118: 9113: 9108: 9103: 9098: 9090: 9084: 9082: 9076: 9075: 9073: 9072: 9066: 9064: 9058: 9057: 9055: 9054: 9049: 9042: 9035: 9030: 9029: 9028: 9023: 9010: 9008: 9002: 9001: 8994: 8992: 8990: 8989: 8984: 8977: 8976: 8975: 8970: 8965: 8960: 8951: 8949: 8939: 8938: 8913: 8912: 8901: 8900: 8893: 8886: 8878: 8872: 8871: 8865: 8859: 8854: 8845: 8840: 8835: 8830: 8815: 8810: 8805: 8800: 8795: 8790: 8785: 8771: 8764: 8763:External links 8761: 8759: 8758: 8747: 8731: 8715: 8710:Stern, Sacha, 8708: 8696: 8687:Schwartz, E., 8685: 8678: 8662: 8654: 8652: 8649: 8647: 8646: 8633: 8619: 8598: 8572:(3): 177–188. 8561: 8547: 8526: 8489: 8480: 8462: 8447: 8418: 8400: 8385: 8367: 8352: 8343: 8317:(4): 285–320. 8302: 8276:(3): 204–224. 8265: 8236: 8210: 8198:La chronologie 8193: 8170: 8161: 8138: 8116: 8109: 8085: 8079: 8064: 8039: 8021: 7999: 7981: 7966: 7956:(6): 109–116. 7945: 7910: 7880: 7862: 7847: 7824: 7818: 7803: 7777:(5): 439−452. 7766: 7748: 7733: 7710: 7680: 7674: 7659: 7637:Paschal Canons 7626: 7624: 7621: 7618: 7617: 7615:, p. 828. 7605: 7593: 7567: 7555: 7543: 7541:, p. 225. 7531: 7492: 7477: 7442: 7431:on 9 July 2012 7407: 7377: 7360: 7339: 7324: 7312: 7310:, p. 151. 7300: 7288: 7276: 7264: 7246: 7222: 7220:, p. 178. 7210: 7183: 7156: 7129: 7105: 7087: 7051: 7021: 7009: 6997: 6990: 6970: 6954: 6931:Paucker, Georg 6922: 6889: 6850: 6848:, p. 117. 6838: 6784: 6775: 6763: 6759:Grotefend 1891 6751: 6749:, p. 114. 6739: 6727: 6715: 6703: 6691: 6679: 6648: 6627: 6593: 6577: 6556: 6544: 6527: 6497: 6470: 6437: 6425: 6413: 6397: 6385: 6373: 6371:, p. 793. 6361: 6334: 6322: 6310: 6298: 6286: 6274: 6262: 6250: 6238: 6235:Leviticus 23:5 6227: 6216: 6204: 6192: 6180: 6169: 6157: 6145: 6143:, p. 468. 6133: 6131:, p. 123. 6120: 6119: 6117: 6114: 6111: 6110: 6100: 6086: 6077: 6064: 6032: 6019: 6000: 5981: 5968: 5955: 5942: 5924: 5923: 5921: 5918: 5916: 5913: 5912: 5911: 5905: 5899: 5892: 5891: 5875: 5872: 5869: 5868: 5867:20 April 2025 5865: 5862: 5859: 5856: 5853: 5850: 5847: 5843: 5842: 5839: 5836: 5833: 5830: 5827: 5824: 5821: 5817: 5816: 5813: 5810: 5807: 5804: 5801: 5798: 5795: 5784: 5777: 5776: 5773: 5770: 5767: 5764: 5761: 5758: 5755: 5725: 5718: 5717: 5714: 5711: 5708: 5705: 5702: 5699: 5696: 5686: 5683: 5682: 5679: 5676: 5673: 5670: 5667: 5664: 5661: 5646: 5639: 5638: 5635: 5632: 5629: 5626: 5623: 5620: 5617: 5610: 5603: 5602: 5599: 5596: 5593: 5590: 5587: 5584: 5581: 5575: 5568: 5567: 5564: 5561: 5558: 5555: 5552: 5549: 5546: 5540: 5533: 5532: 5529: 5526: 5523: 5520: 5517: 5514: 5511: 5505: 5498: 5497: 5494: 5491: 5488: 5485: 5482: 5479: 5473: 5470: 5457:civil calendar 5448: 5445: 5442: 5441: 5440:20 April 2025 5438: 5437:31 March 2024 5435: 5432: 5428: 5427: 5424: 5421: 5418: 5399: 5392: 5391: 5388: 5385: 5382: 5379: 5373: 5372: 5369: 5366: 5363: 5329: 5322: 5321: 5318: 5315: 5312: 5279: 5272: 5271: 5268: 5265: 5262: 5235: 5228: 5227: 5224: 5221: 5218: 5212: 5211: 5208: 5205: 5199: 5196: 5145: 5144: 5143:20 April 2025 5141: 5140:31 March 2024 5138: 5135: 5131: 5130: 5127: 5124: 5121: 5120:+ 114) mod 31 5106: 5099: 5098: 5095: 5092: 5089: 5055: 5048: 5047: 5044: 5041: 5038: 5024: 5021: 5020: 5017: 5014: 5011: 4978: 4971: 4970: 4967: 4964: 4961: 4942: 4935: 4934: 4931: 4928: 4925: 4919: 4912: 4911: 4908: 4905: 4902: 4877: 4870: 4869: 4866: 4863: 4860: 4841: 4834: 4833: 4830: 4827: 4824: 4794: 4787: 4786: 4783: 4780: 4777: 4751: 4744: 4743: 4740: 4737: 4734: 4728: 4721: 4720: 4717: 4714: 4711: 4686: 4679: 4678: 4675: 4672: 4669: 4663: 4656: 4655: 4652: 4649: 4646: 4621: 4614: 4613: 4610: 4607: 4604: 4598: 4591: 4590: 4587: 4584: 4578: 4575: 4528:Arthur Downing 4512: 4511: 4506: 4501: 4498: 4483: 4482: 4479: 4474: 4471: 4457: 4456: 4451: 4448: 4445: 4426: 4425: 4420: 4415: 4412: 4406: 4405: 4400: 4397: 4394: 4374: 4373: 4370: 4365: 4362: 4351: 4350: 4347: 4342: 4339: 4332: 4331: 4326: 4321: 4318: 4312: 4311: 4306: 4301: 4298: 4292: 4291: 4286: 4283: 4280: 4274: 4273: 4270: 4267: 4264: 4250: 4247: 3950: 3949: 3937: 3936: 3920: 3919: 3916: 3913: 3910: 3903: 3900: 3899: 3896: 3893: 3890: 3880: 3876: 3875: 3872: 3869: 3866: 3856: 3852: 3851: 3848: 3845: 3842: 3823: 3816: 3815: 3812: 3809: 3806: 3795: 3788: 3787: 3763: 3762: 3759: 3756: 3753: 3742: 3735: 3734: 3731: 3728: 3725: 3710: 3703: 3702: 3699: 3696: 3693: 3664: 3657: 3656: 3653: 3650: 3647: 3616: 3609: 3608: 3605: 3602: 3599: 3570: 3563: 3562: 3559: 3556: 3553: 3547: 3540: 3539: 3536: 3533: 3530: 3524: 3517: 3516: 3513: 3510: 3507: 3501: 3494: 3493: 3490: 3487: 3481: 3478: 3389: 3386: 3363:multiplication 3350: 3347: 3345: 3342: 3256:vernal equinox 3247: 3244: 3239:ferial regular 3227:ferial regular 3219: 3218: 3215: 3212: 3208: 3207: 3204: 3201: 3194: 3193: 3190: 3184: 3180: 3179: 3176: 3173: 3172:Duodene namque 3169: 3168: 3165: 3162: 3158: 3157: 3154: 3151: 3147: 3146: 3143: 3140: 3139:nonae kalendae 3136: 3135: 3132: 3129: 3125: 3124: 3121: 3118: 3117:denis septenis 3114: 3113: 3110: 3107: 3106:senae kalendae 3103: 3102: 3099: 3096: 3092: 3091: 3088: 3085: 3081: 3080: 3077: 3076:titulant seni, 3074: 3070: 3069: 3066: 3063: 3059: 3058: 3055: 3052: 3048: 3047: 3044: 3041: 3037: 3036: 3033: 3030: 3026: 3025: 3022: 3019: 3015: 3014: 3011: 3008: 2995:Venerable Bede 2923: 2922: 2917: 2912: 2907: 2902: 2897: 2892: 2887: 2882: 2877: 2872: 2867: 2862: 2857: 2852: 2847: 2842: 2837: 2832: 2827: 2819: 2818: 2813: 2808: 2803: 2798: 2793: 2788: 2783: 2778: 2773: 2768: 2763: 2758: 2753: 2748: 2743: 2738: 2733: 2728: 2723: 2713: 2712: 2707: 2702: 2697: 2692: 2687: 2682: 2677: 2672: 2667: 2662: 2657: 2652: 2647: 2642: 2637: 2632: 2627: 2622: 2617: 2616:date (Julian) 2609: 2608: 2605: 2602: 2599: 2596: 2593: 2590: 2587: 2584: 2581: 2578: 2575: 2572: 2569: 2566: 2563: 2560: 2557: 2554: 2551: 2535:to accept it, 2467:Abbo of Fleury 2429: 2426: 2327: 2321: 2262:While the net 2142: 2141: 2137: 2133: 2108: 2051: 2050: 1965: 1963: 1956: 1950: 1947: 1865: 1864: 1861: 1858: 1856: 1854: 1850: 1849: 1846: 1843: 1840: 1837: 1833: 1832: 1829: 1826: 1823: 1820: 1816: 1815: 1812: 1809: 1806: 1803: 1799: 1798: 1795: 1792: 1789: 1786: 1782: 1781: 1778: 1775: 1772: 1769: 1765: 1764: 1761: 1758: 1755: 1752: 1748: 1747: 1744: 1741: 1738: 1735: 1731: 1730: 1727: 1724: 1721: 1718: 1714: 1713: 1710: 1707: 1704: 1701: 1697: 1696: 1693: 1690: 1687: 1684: 1680: 1679: 1676: 1673: 1670: 1667: 1663: 1662: 1659: 1656: 1653: 1650: 1646: 1645: 1642: 1639: 1636: 1633: 1629: 1628: 1625: 1622: 1619: 1616: 1612: 1611: 1608: 1605: 1602: 1599: 1595: 1594: 1591: 1588: 1585: 1582: 1578: 1577: 1574: 1571: 1568: 1565: 1561: 1560: 1557: 1554: 1551: 1548: 1544: 1543: 1540: 1537: 1534: 1531: 1527: 1526: 1523: 1520: 1517: 1514: 1510: 1509: 1506: 1503: 1500: 1497: 1493: 1492: 1489: 1486: 1483: 1480: 1476: 1475: 1472: 1469: 1466: 1463: 1459: 1458: 1455: 1452: 1449: 1446: 1442: 1441: 1438: 1435: 1431: 1430: 1427: 1424: 1420: 1419: 1416: 1413: 1407: 1406: 1403: 1400: 1397: 1394: 1390: 1389: 1386: 1383: 1380: 1377: 1373: 1372: 1369: 1366: 1363: 1360: 1356: 1355: 1352: 1349: 1346: 1343: 1339: 1338: 1336: 1334: 1331: 1328: 1324: 1323: 1320: 1317: 1314: 1311: 1215: 1214: 1209: 1204: 1199: 1194: 1189: 1184: 1179: 1174: 1169: 1164: 1159: 1154: 1149: 1144: 1139: 1134: 1129: 1124: 1119: 1111: 1110: 1107: 1104: 1097: 1094: 1091: 1088: 1085: 1082: 1079: 1076: 1073: 1070: 1067: 1064: 1061: 1058: 1055: 1052: 1049: 1045: 1044: 1041: 1038: 1035: 1032: 1029: 1026: 1023: 1020: 1017: 1014: 1011: 1008: 1005: 1002: 999: 996: 993: 990: 987: 981: 980: 977: 974: 971: 968: 965: 962: 959: 956: 953: 950: 947: 944: 941: 938: 935: 932: 929: 926: 923: 850: 849: 764: 762: 755: 741: 733: 731: 728: 719:moveable feast 664: 663: 607: 584:impares menses 565: 525:ἐπακταὶ ἡμέραι 491: 488: 459:Constantinople 457:at a Synod in 395:lunar calendar 275: 272: 245:intercalations 233:lunar new year 190: 187: 153:as a "Paschal 60:date of Easter 56:moveable feast 48:Roman calendar 9: 6: 4: 3: 2: 11742: 11731: 11728: 11726: 11723: 11721: 11718: 11716: 11713: 11711: 11708: 11707: 11705: 11690: 11687: 11685: 11682: 11680: 11677: 11675: 11672: 11670: 11667: 11665: 11662: 11660: 11657: 11655: 11652: 11650: 11647: 11645: 11642: 11640: 11637: 11635: 11632: 11630: 11627: 11626: 11623: 11619: 11615: 11608: 11603: 11601: 11596: 11594: 11589: 11588: 11585: 11565: 11562: 11560: 11557: 11556: 11553: 11547: 11544: 11542: 11539: 11537: 11534: 11532: 11529: 11527: 11524: 11520: 11517: 11516: 11515: 11512: 11511: 11509: 11507: 11503: 11500: 11498: 11494: 11491: 11489: 11485: 11475: 11472: 11470: 11467: 11466: 11464: 11460: 11450: 11447: 11446: 11444: 11440: 11434: 11431: 11429: 11426: 11424: 11421: 11419: 11416: 11415: 11413: 11411: 11407: 11401: 11399: 11395: 11393: 11392:, BWV 66 11391: 11387: 11385: 11383: 11379: 11377: 11376:, BWV 31 11375: 11371: 11369: 11367: 11363: 11361: 11359: 11355: 11353: 11351: 11347: 11346: 11344: 11340: 11334: 11331: 11329: 11326: 11324: 11323: 11319: 11318: 11316: 11312: 11306: 11303: 11301: 11300: 11296: 11294: 11293: 11289: 11287: 11286: 11282: 11281: 11278: 11275: 11271: 11261: 11258: 11257: 11255: 11253:Pre-Christian 11251: 11245: 11242: 11240: 11237: 11235: 11232: 11230: 11227: 11226: 11224: 11220: 11210: 11207: 11205: 11202: 11200: 11197: 11196: 11194: 11190: 11184: 11181: 11179: 11176: 11174: 11171: 11169: 11166: 11164: 11161: 11159: 11156: 11152: 11149: 11148: 11147: 11144: 11142: 11139: 11138: 11135: 11132: 11130: 11126: 11120: 11117: 11114: 11112: 11109: 11107: 11104: 11102: 11101:Pace Egg play 11099: 11097: 11094: 11092: 11089: 11087: 11084: 11082: 11079: 11075: 11072: 11071: 11070: 11067: 11065: 11062: 11060: 11057: 11056: 11053: 11050: 11048: 11044: 11034: 11031: 11029: 11026: 11024: 11021: 11017: 11014: 11012: 11009: 11008: 11007: 11004: 11003: 11001: 10999: 10998:Ascensiontide 10995: 10989: 10988:Rogation days 10986: 10984: 10981: 10979: 10978:Mid-Pentecost 10976: 10974: 10971: 10969: 10966: 10964: 10961: 10960: 10957: 10945: 10942: 10940: 10937: 10936: 10935: 10932: 10931: 10928: 10922: 10919: 10917: 10914: 10912: 10909: 10907: 10904: 10902: 10899: 10895: 10892: 10890: 10889:Śmigus-dyngus 10887: 10886: 10885: 10884:Easter Monday 10882: 10880: 10879:Easter Sunday 10877: 10876: 10874: 10872: 10868: 10865: 10863: 10859: 10853: 10850: 10848: 10845: 10843: 10840: 10839: 10837: 10833: 10830: 10828: 10824: 10814: 10811: 10809: 10808:List of dates 10806: 10805: 10803: 10801: 10797: 10791: 10788: 10786: 10783: 10781: 10778: 10776: 10773: 10769: 10766: 10765: 10764: 10761: 10760: 10757: 10754: 10752: 10748: 10745: 10743: 10739: 10723: 10720: 10718: 10715: 10713: 10710: 10708: 10705: 10703: 10700: 10698: 10695: 10693: 10690: 10688: 10685: 10683: 10680: 10679: 10678: 10675: 10671: 10668: 10667: 10665: 10663: 10660: 10656: 10653: 10652: 10651: 10648: 10646: 10643: 10639: 10636: 10634: 10631: 10630: 10628: 10626: 10623: 10619: 10616: 10615: 10613: 10612: 10610: 10606: 10600: 10597: 10595: 10592: 10591: 10588: 10585: 10581: 10567: 10564: 10562: 10559: 10555: 10554: 10550: 10548: 10547: 10546:Lumen Christi 10543: 10541: 10538: 10537: 10536: 10533: 10532: 10530: 10528: 10524: 10518: 10515: 10513: 10510: 10509: 10506: 10503: 10501: 10500:Holy Saturday 10497: 10491: 10488: 10484: 10481: 10480: 10479: 10476: 10472: 10469: 10467: 10466:Tomb of Jesus 10464: 10463: 10462: 10459: 10455: 10452: 10450: 10447: 10445: 10442: 10440: 10437: 10436: 10435: 10432: 10430: 10427: 10423: 10420: 10418: 10417: 10413: 10412: 10411: 10408: 10407: 10405: 10403: 10399: 10391: 10388: 10386: 10383: 10381: 10378: 10376: 10373: 10371: 10368: 10366: 10363: 10362: 10361: 10358: 10356: 10353: 10352: 10350: 10348: 10344: 10338: 10335: 10334: 10331: 10328: 10326: 10322: 10316: 10313: 10311: 10308: 10306: 10303: 10302: 10300: 10296: 10290: 10287: 10286: 10284: 10282: 10278: 10275: 10273: 10269: 10259: 10256: 10254: 10253:Passion hymns 10251: 10249: 10246: 10244: 10241: 10240: 10238: 10234: 10228: 10225: 10222: 10218: 10214: 10211: 10210: 10208: 10206: 10202: 10195: 10191: 10188: 10186: 10183: 10181: 10178: 10176: 10173: 10171: 10168: 10166: 10165:Ash Wednesday 10163: 10162: 10160: 10156: 10146: 10143: 10141: 10138: 10136: 10133: 10131: 10128: 10126: 10123: 10121: 10120:Shrove Monday 10118: 10117: 10115: 10112: 10108: 10104: 10098: 10097:Quinquagesima 10095: 10093: 10090: 10088: 10085: 10084: 10081: 10078: 10076: 10072: 10069: 10067: 10063: 10059: 10055: 10048: 10043: 10041: 10036: 10034: 10029: 10028: 10025: 10013: 10008: 10003: 10001: 9998: 9996: 9993: 9991: 9988: 9986: 9983: 9979: 9976: 9974: 9971: 9969: 9966: 9965: 9963: 9962: 9958: 9955:marks the 10 9954: 9951: 9948: 9947: 9944: 9930: 9926: 9922: 9919: 9918: 9915: 9909: 9906: 9904: 9901: 9897: 9894: 9893: 9892: 9891: 9887: 9885: 9882: 9880: 9877: 9875: 9872: 9870: 9867: 9865: 9862: 9860: 9859: 9855: 9853: 9850: 9848: 9845: 9843: 9840: 9838: 9837: 9833: 9831: 9828: 9826: 9823: 9821: 9820: 9816: 9814: 9811: 9809: 9806: 9804: 9801: 9800: 9798: 9796: 9792: 9786: 9785: 9781: 9779: 9778:Rogation Days 9776: 9772: 9769: 9767: 9764: 9762: 9759: 9757: 9754: 9752: 9749: 9747: 9744: 9743: 9741: 9737: 9734: 9733: 9732: 9731:Easter Sunday 9729: 9728: 9726: 9724: 9723:Easter Season 9720: 9714: 9711: 9709: 9708:Holy Saturday 9706: 9704: 9701: 9697: 9694: 9692: 9689: 9688: 9687: 9686:Holy Thursday 9684: 9682: 9679: 9678: 9676: 9674: 9670: 9660: 9657: 9655: 9652: 9650: 9647: 9646: 9644: 9642: 9638: 9632: 9629: 9627: 9626: 9622: 9620: 9617: 9613: 9610: 9608: 9605: 9603: 9600: 9598: 9595: 9594: 9592: 9590: 9589:Ash Wednesday 9587: 9586: 9584: 9582: 9578: 9572: 9571:Quinquagesima 9569: 9567: 9564: 9562: 9559: 9558: 9556: 9554: 9550: 9547: 9545: 9541: 9535: 9532: 9530: 9527: 9525: 9522: 9520: 9519: 9515: 9514: 9512: 9510: 9506: 9500: 9497: 9495: 9494: 9490: 9486: 9485:Christmas Eve 9483: 9482: 9481: 9480: 9476: 9475: 9473: 9471: 9467: 9461: 9458: 9456: 9453: 9451: 9450: 9446: 9444: 9441: 9437: 9434: 9432: 9429: 9427: 9424: 9422: 9419: 9418: 9416: 9415: 9413: 9411: 9407: 9403: 9398: 9397:1960 Calendar 9394: 9390: 9386: 9381: 9377: 9363: 9360: 9358: 9355: 9353: 9350: 9346: 9343: 9342: 9341: 9340: 9336: 9334: 9331: 9329: 9326: 9324: 9323: 9319: 9317: 9314: 9312: 9311: 9307: 9305: 9302: 9300: 9297: 9295: 9292: 9290: 9289: 9285: 9283: 9280: 9279: 9277: 9275: 9274:Ordinary Time 9271: 9265: 9262: 9260: 9259: 9255: 9251: 9248: 9246: 9243: 9241: 9238: 9236: 9233: 9231: 9228: 9224: 9221: 9220: 9219: 9216: 9215: 9213: 9209: 9206: 9205: 9204: 9203:Easter Sunday 9201: 9200: 9198: 9196: 9195:Easter Season 9192: 9186: 9183: 9181: 9180:Holy Saturday 9178: 9176: 9173: 9169: 9166: 9164: 9161: 9160: 9159: 9158:Holy Thursday 9156: 9155: 9153: 9151: 9147: 9141: 9138: 9136: 9133: 9131: 9128: 9126: 9125: 9121: 9117: 9114: 9112: 9109: 9107: 9104: 9102: 9099: 9097: 9094: 9093: 9091: 9089: 9088:Ash Wednesday 9086: 9085: 9083: 9081: 9077: 9071: 9068: 9067: 9065: 9063: 9062:Ordinary Time 9059: 9053: 9050: 9048: 9047: 9043: 9041: 9040: 9036: 9034: 9031: 9027: 9026:Midnight Mass 9024: 9022: 9021:Christmas Eve 9019: 9018: 9017: 9016: 9012: 9011: 9009: 9007: 9003: 8998: 8988: 8985: 8983: 8982: 8978: 8974: 8971: 8969: 8966: 8964: 8961: 8959: 8956: 8955: 8953: 8952: 8950: 8948: 8944: 8940: 8935: 8934:1969 Calendar 8931: 8927: 8923: 8922:Ordinary Form 8918: 8914: 8910: 8906: 8899: 8894: 8892: 8887: 8885: 8880: 8879: 8876: 8869: 8866: 8863: 8860: 8858: 8855: 8853: 8851: 8846: 8844: 8841: 8839: 8836: 8834: 8831: 8829: 8825: 8822: 8816: 8814: 8811: 8809: 8806: 8804: 8801: 8799: 8796: 8794: 8791: 8789: 8786: 8783: 8779: 8778:De Temporibus 8775: 8772: 8770: 8767: 8766: 8756: 8752: 8748: 8745: 8744: 8740: 8737: 8732: 8729: 8728: 8724: 8721: 8716: 8713: 8709: 8707: 8703: 8700: 8697: 8694: 8690: 8686: 8683: 8679: 8676: 8675: 8671: 8668: 8663: 8660: 8656: 8655: 8643: 8639: 8634: 8630: 8629: 8624: 8620: 8616: 8612: 8608: 8604: 8599: 8595: 8591: 8587: 8583: 8579: 8575: 8571: 8567: 8562: 8558: 8557: 8552: 8548: 8544: 8540: 8536: 8532: 8527: 8523: 8519: 8515: 8511: 8507: 8503: 8499: 8495: 8490: 8486: 8481: 8469: 8465: 8459: 8455: 8454: 8448: 8436: 8432: 8428: 8427:New Scientist 8424: 8419: 8407: 8403: 8397: 8393: 8392: 8386: 8374: 8370: 8364: 8360: 8359: 8353: 8349: 8344: 8340: 8336: 8332: 8328: 8324: 8320: 8316: 8312: 8308: 8303: 8299: 8295: 8291: 8287: 8283: 8279: 8275: 8271: 8266: 8262: 8258: 8254: 8250: 8246: 8242: 8237: 8225: 8221: 8220: 8215: 8214:Lange, Ludwig 8211: 8207: 8203: 8199: 8194: 8182: 8178: 8177: 8171: 8167: 8162: 8150: 8146: 8145: 8139: 8136: 8132: 8128: 8125: 8121: 8117: 8114: 8110: 8106: 8102: 8098: 8094: 8090: 8086: 8082: 8076: 8072: 8071: 8065: 8063: 8061: 8055: 8051: 8048: 8044: 8040: 8028: 8024: 8018: 8014: 8013: 8008: 8004: 8000: 7988: 7984: 7978: 7974: 7973: 7967: 7963: 7959: 7955: 7951: 7946: 7944: 7940: 7937: 7935: 7929: 7925: 7922: 7920: 7915: 7911: 7908: 7894: 7890: 7889: 7886: 7881: 7869: 7865: 7859: 7855: 7854: 7848: 7836: 7832: 7831: 7825: 7821: 7815: 7811: 7810: 7804: 7800: 7796: 7792: 7788: 7784: 7780: 7776: 7772: 7767: 7755: 7751: 7745: 7741: 7740: 7736:Bede (1999). 7734: 7722: 7718: 7717: 7711: 7707: 7695: 7691: 7690: 7685: 7681: 7677: 7671: 7667: 7666: 7660: 7648: 7644: 7640: 7638: 7632: 7628: 7627: 7614: 7613:O'Beirne 1961 7609: 7602: 7597: 7590: 7586: 7582: 7578: 7571: 7565:, p. 73. 7564: 7559: 7552: 7547: 7540: 7535: 7527: 7522:|author= 7515: 7507: 7503: 7496: 7489: 7484: 7482: 7465: 7461: 7457: 7453: 7446: 7430: 7426: 7422: 7418: 7411: 7395: 7391: 7387: 7381: 7374: 7369: 7367: 7365: 7357: 7352: 7350: 7348: 7346: 7344: 7336: 7331: 7329: 7321: 7316: 7309: 7304: 7297: 7292: 7286:, p. 48. 7285: 7280: 7274:, p. 36. 7273: 7268: 7253: 7249: 7247:0-8028-8129-7 7243: 7239: 7235: 7234: 7226: 7219: 7214: 7198: 7194: 7187: 7171: 7167: 7160: 7144: 7140: 7133: 7117: 7116: 7109: 7103: 7102:Easter tables 7099: 7096: 7091: 7072: 7068: 7061: 7055: 7039: 7035: 7031: 7025: 7018: 7017:Swerdlow 1986 7013: 7006: 7001: 6993: 6991:0-935702-68-7 6987: 6983: 6982: 6974: 6966: 6965: 6958: 6942: 6938: 6937: 6932: 6926: 6907: 6900: 6893: 6877: 6873: 6869: 6865: 6861: 6854: 6847: 6842: 6826: 6822: 6818: 6814: 6810: 6806: 6799: 6797: 6795: 6793: 6791: 6789: 6779: 6772: 6767: 6760: 6755: 6748: 6743: 6736: 6731: 6725:, p. 76. 6724: 6719: 6712: 6707: 6700: 6695: 6688: 6683: 6675: 6669: 6661: 6660: 6652: 6644: 6643: 6638: 6631: 6624: 6620: 6619: 6614: 6613:Scott, Robert 6610: 6606: 6597: 6590: 6586: 6585:Richards 2013 6581: 6572: 6568: 6567: 6560: 6553: 6548: 6541: 6540:van Gent 2019 6536: 6534: 6532: 6515: 6511: 6507: 6501: 6485: 6481: 6474: 6455: 6448: 6441: 6434: 6429: 6422: 6417: 6410: 6406: 6401: 6394: 6389: 6382: 6381:McCarthy 1993 6377: 6370: 6365: 6349: 6345: 6338: 6332:, p. 99. 6331: 6330:Declercq 2000 6326: 6320:, p. 97. 6319: 6318:Declercq 2000 6314: 6308:, p. 80. 6307: 6306:Declercq 2000 6302: 6295: 6294:McCarthy 1996 6290: 6283: 6278: 6271: 6266: 6259: 6254: 6247: 6242: 6236: 6231: 6225: 6220: 6213: 6208: 6201: 6196: 6190:, p. xx. 6189: 6184: 6178: 6173: 6166: 6161: 6154: 6149: 6142: 6141:Peterson 2015 6137: 6130: 6125: 6121: 6104: 6097: 6090: 6081: 6074: 6068: 6062: 6060: 6054: 6050: 6046: 6042: 6036: 6029: 6023: 6015: 6010: 6004: 5996: 5991: 5985: 5978: 5972: 5965: 5959: 5952: 5946: 5939: 5935: 5929: 5925: 5909: 5906: 5903: 5900: 5897: 5894: 5893: 5889: 5883: 5878: 5866: 5863: 5860: 5858:24 April 2011 5857: 5854: 5852:19 April 2009 5851: 5849:27 April 2008 5848: 5844: 5841:7 April 2025 5840: 5838:22 April 2024 5837: 5835:18 April 2016 5834: 5832:11 April 2011 5831: 5829:22 March 2010 5828: 5825: 5823:14 April 2008 5822: 5818: 5814: 5811: 5808: 5805: 5802: 5799: 5796: 5793: 5789: 5785: 5782: 5779: 5778: 5774: 5771: 5768: 5765: 5762: 5759: 5756: 5740: 5736: 5726: 5723: 5720: 5719: 5715: 5712: 5709: 5706: 5703: 5700: 5697: 5694: 5690: 5687: 5685: 5684: 5680: 5677: 5674: 5671: 5668: 5665: 5662: 5659: 5655: 5651: 5647: 5644: 5641: 5640: 5636: 5633: 5630: 5627: 5624: 5621: 5618: 5616:+ 15) mod 30 5615: 5611: 5608: 5605: 5604: 5600: 5597: 5594: 5591: 5588: 5585: 5582: 5579: 5576: 5573: 5570: 5569: 5565: 5562: 5559: 5556: 5553: 5550: 5547: 5544: 5541: 5538: 5535: 5534: 5530: 5527: 5524: 5521: 5518: 5515: 5512: 5509: 5506: 5503: 5500: 5499: 5495: 5492: 5489: 5486: 5483: 5480: 5477: 5474: 5471: 5468: 5467: 5461: 5458: 5454: 5439: 5436: 5433: 5429: 5425: 5422: 5419: 5417:+ 19) mod 32 5416: 5412: 5408: 5404: 5400: 5397: 5393: 5378: 5375: 5374: 5370: 5367: 5364: 5348: 5344: 5340: 5330: 5327: 5323: 5319: 5316: 5313: 5298: 5294: 5290: 5280: 5277: 5274: 5273: 5269: 5266: 5263: 5247: 5236: 5233: 5230: 5229: 5217: 5214: 5213: 5209: 5206: 5203: 5200: 5197: 5194: 5193: 5190: 5188: 5184: 5180: 5176: 5172: 5168: 5167:New Scientist 5164: 5160: 5156: 5152: 5142: 5139: 5136: 5132: 5128: 5125: 5122: 5119: 5115: 5111: 5107: 5104: 5100: 5096: 5093: 5090: 5074: 5070: 5066: 5056: 5053: 5049: 5045: 5042: 5039: 5036: 5032: 5028: 5025: 5023: 5022: 5018: 5015: 5012: 4997: 4993: 4989: 4979: 4976: 4973: 4972: 4968: 4965: 4962: 4959: 4955: 4951: 4947: 4943: 4940: 4937: 4936: 4932: 4929: 4926: 4923: 4920: 4917: 4914: 4913: 4909: 4906: 4903: 4888: 4878: 4875: 4872: 4871: 4867: 4864: 4861: 4859:+ 15) mod 30 4858: 4854: 4850: 4846: 4842: 4839: 4836: 4835: 4831: 4828: 4825: 4809: 4805: 4795: 4792: 4789: 4788: 4784: 4781: 4778: 4762: 4752: 4749: 4746: 4745: 4741: 4738: 4735: 4732: 4729: 4726: 4723: 4722: 4718: 4715: 4712: 4697: 4687: 4684: 4681: 4680: 4676: 4673: 4670: 4667: 4664: 4661: 4658: 4657: 4653: 4650: 4647: 4632: 4622: 4619: 4616: 4615: 4611: 4608: 4605: 4602: 4599: 4596: 4593: 4592: 4588: 4585: 4582: 4579: 4576: 4573: 4572: 4569: 4567: 4563: 4559: 4558: 4553: 4552: 4548:, in 1977 by 4547: 4543: 4539: 4536:, in 1922 by 4535: 4534: 4529: 4526:, in 1916 by 4525: 4521: 4520: 4510: 4507: 4505: 4502: 4499: 4496: 4492: 4488: 4485: 4484: 4478: 4475: 4472: 4470: 4466: 4462: 4459: 4458: 4455: 4452: 4446: 4444: 4440: 4436: 4432: 4428: 4427: 4424: 4421: 4419: 4416: 4413: 4411: 4408: 4407: 4404: 4401: 4395: 4392: 4388: 4384: 4380: 4376: 4375: 4369: 4366: 4363: 4360: 4356: 4353: 4352: 4346: 4343: 4340: 4337: 4334: 4333: 4330: 4327: 4325: 4322: 4319: 4317: 4314: 4313: 4310: 4307: 4305: 4302: 4299: 4297: 4294: 4293: 4290: 4287: 4281: 4279: 4276: 4275: 4271: 4268: 4265: 4262: 4261: 4257: 4246: 4242: 4240: 4236: 4231: 4225: 4221: 4215: 4213: 4209: 4205: 4201: 4197: 4193: 4189: 4184: 4182: 4178: 4172: 4169: 4165: 4159: 4155: 4146: 4143: 4139: 4131: 4127: 4123: 4119: 4113: 4109: 4105: 4100: 4096: 4089: 4086: 4082: 4079:and constant 4078: 4072: 4070: 4064: 4060: 4052: 4048: 4042: 4038: 4033: 4029: 4023: 4018: 4016: 4006: 4004: 4000: 3996: 3992: 3988: 3983: 3980: 3976: 3972: 3968: 3964: 3959: 3957: 3947: 3943: 3938: 3934: 3930: 3926: 3921: 3917: 3914: 3911: 3909:+ 11) mod 30 3908: 3904: 3902: 3901: 3897: 3894: 3891: 3888: 3884: 3881: 3878: 3877: 3873: 3870: 3867: 3865: 3861: 3857: 3854: 3853: 3849: 3846: 3843: 3840: 3836: 3832: 3828: 3824: 3821: 3818: 3817: 3813: 3810: 3807: 3804: 3800: 3796: 3793: 3790: 3789: 3785: 3781: 3777: 3773: 3769: 3764: 3760: 3757: 3754: 3751: 3747: 3743: 3740: 3737: 3736: 3732: 3729: 3726: 3723: 3719: 3715: 3711: 3708: 3705: 3704: 3700: 3697: 3694: 3679: 3668: 3665: 3662: 3659: 3658: 3654: 3651: 3648: 3633: 3621: 3617: 3614: 3611: 3610: 3606: 3603: 3600: 3585: 3574: 3571: 3568: 3565: 3564: 3560: 3557: 3554: 3551: 3548: 3545: 3542: 3541: 3537: 3534: 3531: 3528: 3525: 3522: 3519: 3518: 3514: 3511: 3508: 3505: 3502: 3499: 3496: 3495: 3491: 3488: 3485: 3482: 3479: 3476: 3475: 3472: 3470: 3464: 3457: 3437: 3416: 3408: 3404: 3399: 3395: 3385: 3376: 3372: 3368: 3364: 3360: 3356: 3341: 3337: 3333: 3329: 3326: 3320: 3317: 3310: 3304: 3299: 3295: 3293: 3288: 3283: 3279: 3275: 3271: 3270:Regiomontanus 3266: 3260: 3257: 3253: 3243: 3240: 3234: 3228: 3216: 3213: 3210: 3209: 3205: 3202: 3196: 3195: 3191: 3185: 3182: 3181: 3177: 3174: 3171: 3170: 3166: 3163: 3160: 3159: 3155: 3152: 3149: 3148: 3144: 3141: 3138: 3137: 3133: 3130: 3127: 3126: 3122: 3120:donant assim. 3119: 3116: 3115: 3111: 3108: 3105: 3104: 3100: 3097: 3095:Septenas idus 3094: 3093: 3089: 3086: 3083: 3082: 3078: 3075: 3072: 3071: 3067: 3064: 3061: 3060: 3056: 3053: 3050: 3049: 3045: 3042: 3039: 3038: 3034: 3031: 3028: 3027: 3023: 3020: 3017: 3016: 3012: 3010:norunt quinos 3009: 3007:Nonae Aprilis 3006: 3005: 3001: 2998: 2996: 2991: 2986: 2982: 2978: 2973: 2971: 2967: 2966:paschal cycle 2959: 2958: 2947: 2936: 2933: 2930: 2918: 2913: 2908: 2903: 2898: 2893: 2888: 2883: 2878: 2873: 2868: 2863: 2858: 2853: 2848: 2843: 2838: 2833: 2828: 2821: 2820: 2814: 2809: 2804: 2799: 2794: 2789: 2784: 2779: 2774: 2769: 2764: 2759: 2754: 2749: 2744: 2739: 2734: 2729: 2724: 2715: 2714: 2708: 2703: 2698: 2693: 2688: 2683: 2678: 2673: 2668: 2663: 2658: 2653: 2648: 2643: 2638: 2633: 2628: 2623: 2618: 2611: 2610: 2606: 2603: 2600: 2597: 2594: 2591: 2588: 2585: 2582: 2579: 2576: 2573: 2570: 2567: 2564: 2561: 2558: 2555: 2552: 2547: 2546: 2543: 2540: 2538: 2534: 2529: 2527: 2523: 2518: 2513: 2508: 2506: 2502: 2497: 2491: 2484: 2481: 2480: 2475: 2470: 2468: 2464: 2459: 2458:Massa Compoti 2454: 2453:golden number 2449: 2445: 2443: 2434: 2425: 2421: 2419: 2418:Sunday letter 2415: 2414:golden number 2411: 2406: 2404: 2400: 2396: 2392: 2389:. And if the 2388: 2384: 2380: 2376: 2372: 2368: 2367: 2362: 2357: 2355: 2354:Sunday letter 2351: 2350:golden number 2347: 2343: 2342: 2338: 2333: 2326: 2320: 2318: 2314: 2286: 2282: 2278: 2276: 2271: 2269: 2260: 2256: 2252: 2241: 2237: 2234: 2230: 2226: 2165: 2163: 2138: 2134: 2129: 2128: 2121: 2115: 2109: 2106: 2105: 2104: 2100: 2092: 2090: 2080: 2076: 2068: 2064: 2062: 2056: 2047: 2044: 2036: 2025: 2022: 2018: 2015: 2011: 2008: 2004: 2001: 1997: 1994: – 1993: 1989: 1988:Find sources: 1982: 1978: 1972: 1971: 1966:This section 1964: 1960: 1955: 1954: 1946: 1944: 1940: 1934: 1930: 1928: 1923: 1918: 1916: 1912: 1906: 1903: 1897: 1893: 1889: 1885: 1881: 1880: 1874: 1872: 1862: 1859: 1857: 1855: 1852: 1851: 1847: 1844: 1841: 1838: 1835: 1834: 1830: 1827: 1824: 1821: 1818: 1817: 1813: 1810: 1807: 1804: 1801: 1800: 1796: 1793: 1790: 1787: 1784: 1783: 1779: 1776: 1773: 1770: 1767: 1766: 1762: 1759: 1756: 1753: 1750: 1749: 1745: 1742: 1739: 1736: 1733: 1732: 1728: 1725: 1722: 1719: 1716: 1715: 1711: 1708: 1705: 1702: 1699: 1698: 1694: 1691: 1688: 1685: 1682: 1681: 1677: 1674: 1671: 1668: 1665: 1664: 1660: 1657: 1654: 1651: 1648: 1647: 1643: 1640: 1637: 1634: 1631: 1630: 1626: 1623: 1620: 1617: 1614: 1613: 1609: 1606: 1603: 1600: 1597: 1596: 1592: 1589: 1586: 1583: 1580: 1579: 1575: 1572: 1569: 1566: 1563: 1562: 1558: 1555: 1552: 1549: 1546: 1545: 1541: 1538: 1535: 1532: 1529: 1528: 1524: 1521: 1518: 1515: 1512: 1511: 1507: 1504: 1501: 1498: 1495: 1494: 1490: 1487: 1484: 1481: 1478: 1477: 1473: 1470: 1467: 1464: 1461: 1460: 1456: 1453: 1450: 1447: 1444: 1443: 1439: 1436: 1433: 1432: 1422: 1421: 1412: 1409: 1408: 1398: 1395: 1392: 1391: 1387: 1384: 1381: 1378: 1375: 1374: 1370: 1367: 1364: 1361: 1358: 1357: 1353: 1350: 1347: 1344: 1341: 1340: 1337: 1335: 1332: 1329: 1326: 1325: 1321: 1318: 1315: 1312: 1309: 1308: 1302: 1298: 1293: 1286: 1282: 1277: 1273: 1269: 1266: 1265:dies dominica 1261: 1255: 1251: 1248: 1243: 1240: 1233: 1230: 1229:Roman numeral 1225: 1210: 1205: 1200: 1195: 1190: 1185: 1180: 1175: 1170: 1165: 1160: 1155: 1150: 1145: 1140: 1135: 1130: 1125: 1120: 1113: 1112: 1108: 1105: 1103: 1102: 1098: 1095: 1092: 1089: 1086: 1083: 1080: 1077: 1074: 1071: 1068: 1065: 1062: 1059: 1056: 1053: 1050: 1047: 1046: 1042: 1039: 1036: 1033: 1030: 1027: 1024: 1021: 1018: 1015: 1012: 1009: 1006: 1003: 1000: 997: 994: 991: 988: 983: 982: 978: 975: 972: 969: 966: 963: 960: 957: 954: 951: 948: 945: 942: 939: 936: 933: 930: 927: 924: 921: 920: 917: 914: 912: 911:golden number 907: 905: 900: 897: 894: 887: 881: 878: 873: 868: 863: 858: 846: 843: 835: 824: 821: 817: 814: 810: 807: 803: 800: 796: 793: – 792: 788: 787:Find sources: 781: 777: 771: 770: 765:This section 763: 759: 754: 753: 750: 747: 727: 725: 720: 716: 711: 695:235 × 4 = 940 688: 683: 681: 677: 673: 672:Christian era 669: 661: 657: 654: 653: 652: 650: 649:golden number 644: 638: 635: 624: 612: 606: 603: 602:impares lunae 597: 591: 585: 578: 576: 570: 564: 560: 558: 554: 549: 546: 540: 539: 532: 521: 517: 511: 502: 501:synodic month 498: 487: 478: 472: 468: 464: 460: 456: 451: 443: 435: 429: 425: 421: 417: 413: 412: 406: 404: 400: 396: 390: 388: 384: 379: 377: 372: 367: 363: 359: 354: 352: 348: 343: 341: 337: 333: 327: 325: 321: 316: 314: 313:Christian Era 310: 306: 302: 297: 291: 289: 285: 281: 271: 269: 264: 258: 254: 248: 246: 242: 241:Metonic cycle 238: 234: 230: 229:intercalating 226: 222: 218: 214: 210: 206: 200: 196: 186: 184: 180: 176: 172: 168: 163: 157: 152: 147: 142: 138: 137: 131: 129: 124: 120: 115: 113: 109: 105: 101: 97: 93: 89: 88:March equinox 85: 81: 77: 73: 68: 67: 61: 57: 49: 45: 40: 36: 32: 27: 19: 11531:Whit Tuesday 11442:Choral music 11397: 11389: 11381: 11373: 11365: 11360:, BWV 4 11357: 11352:, BWV 6 11349: 11322:Regina caeli 11320: 11297: 11290: 11283: 11168:Osterbrunnen 11115:Saitopolemos 11081:Easter seals 10812: 10799: 10775:Myrrhbearers 10551: 10544: 10527:Easter Vigil 10490:Gorzkie żale 10483:for the Jews 10416:Arma Christi 10414: 10385:Foot washing 10310:Holy Tuesday 10258:Stabat Mater 10087:Septuagesima 10000:Easter cycle 9952: 9929:Roman Ritual 9888: 9856: 9834: 9825:Sacred Heart 9817: 9782: 9713:Easter Vigil 9631:Annunciation 9625:Saint Joseph 9623: 9561:Septuagesima 9516: 9491: 9477: 9447: 9393:Latin Church 9337: 9320: 9308: 9294:Sacred Heart 9286: 9256: 9185:Easter Vigil 9130:Annunciation 9124:Saint Joseph 9122: 9044: 9037: 9013: 8979: 8930:Latin Church 8849: 8781: 8777: 8754: 8734: 8718: 8711: 8688: 8681: 8665: 8658: 8641: 8637: 8627: 8606: 8602: 8569: 8565: 8555: 8534: 8530: 8497: 8493: 8484: 8472:. Retrieved 8452: 8439:. Retrieved 8433:(228): 828. 8430: 8426: 8410:. Retrieved 8390: 8377:. Retrieved 8357: 8347: 8314: 8310: 8306: 8273: 8269: 8244: 8240: 8228:. Retrieved 8218: 8197: 8185:. Retrieved 8175: 8165: 8153:, retrieved 8143: 8134: 8119: 8112: 8096: 8092: 8069: 8059: 8058:(table with 8042: 8031:. Retrieved 8011: 7991:. Retrieved 7971: 7953: 7949: 7933: 7918: 7913: 7906: 7897:. Retrieved 7888: 7885: 7872:. Retrieved 7852: 7839:. Retrieved 7829: 7808: 7774: 7770: 7758:. Retrieved 7738: 7725:. Retrieved 7715: 7704:– via 7698:. Retrieved 7688: 7664: 7651:, retrieved 7642: 7636: 7608: 7596: 7580: 7576: 7570: 7558: 7551:Downing 1916 7546: 7539:Butcher 1877 7534: 7514:cite journal 7505: 7495: 7468:. Retrieved 7464:the original 7459: 7455: 7445: 7433:. Retrieved 7429:the original 7424: 7420: 7410: 7398:. Retrieved 7389: 7380: 7335:Nothaft 2018 7315: 7303: 7291: 7279: 7267: 7256:, retrieved 7232: 7225: 7213: 7201:. Retrieved 7197:the original 7186: 7174:. Retrieved 7170:the original 7159: 7147:. Retrieved 7132: 7120:. Retrieved 7114: 7108: 7097: 7090: 7078:. Retrieved 7066: 7054: 7042:. Retrieved 7033: 7024: 7012: 7005:de Kort 1949 7000: 6980: 6973: 6963: 6957: 6945:. Retrieved 6935: 6925: 6913:. Retrieved 6892: 6880:. Retrieved 6863: 6853: 6841: 6829:. Retrieved 6812: 6808: 6778: 6766: 6754: 6742: 6730: 6718: 6706: 6699:Clavius 1603 6694: 6682: 6658: 6651: 6640: 6630: 6616: 6596: 6580: 6571:the original 6565: 6559: 6552:Shields 1924 6547: 6518:. Retrieved 6509: 6500: 6488:. Retrieved 6473: 6461:. Retrieved 6454:the original 6440: 6428: 6416: 6409:Campus Lenis 6408: 6400: 6388: 6376: 6364: 6352:. Retrieved 6337: 6325: 6313: 6301: 6289: 6277: 6265: 6253: 6241: 6230: 6224:Exodus 12:18 6219: 6207: 6195: 6183: 6172: 6160: 6148: 6136: 6124: 6103: 6089: 6080: 6067: 6035: 6022: 6008: 6003: 5989: 5984: 5971: 5958: 5950: 5945: 5934:Bruno Krusch 5928: 5855:4 April 2010 5826:6 April 2009 5791: 5787: 5780: 5738: 5734: 5721: 5692: 5688: 5660:+ 34) mod 7 5657: 5653: 5649: 5642: 5613: 5606: 5577: 5571: 5542: 5536: 5507: 5501: 5475: 5452: 5450: 5434:2 April 1961 5414: 5410: 5406: 5402: 5395: 5376: 5346: 5342: 5338: 5325: 5296: 5292: 5288: 5275: 5245: 5231: 5215: 5201: 5186: 5182: 5178: 5174: 5170: 5166: 5162: 5158: 5154: 5150: 5148: 5137:2 April 1961 5117: 5113: 5109: 5102: 5072: 5068: 5064: 5051: 5034: 5030: 5026: 4995: 4991: 4987: 4974: 4957: 4953: 4949: 4945: 4938: 4921: 4915: 4886: 4873: 4856: 4852: 4848: 4844: 4837: 4807: 4803: 4790: 4760: 4747: 4730: 4724: 4695: 4682: 4665: 4659: 4630: 4617: 4600: 4594: 4580: 4565: 4555: 4550: 4545: 4541: 4531: 4523: 4517: 4515: 4508: 4503: 4494: 4490: 4486: 4476: 4468: 4464: 4460: 4453: 4442: 4438: 4434: 4430: 4422: 4417: 4409: 4402: 4390: 4386: 4382: 4378: 4367: 4358: 4354: 4344: 4335: 4328: 4323: 4315: 4308: 4303: 4295: 4288: 4277: 4255: 4243: 4238: 4234: 4229: 4223: 4219: 4216: 4211: 4207: 4203: 4199: 4195: 4191: 4187: 4185: 4180: 4176: 4173: 4167: 4163: 4157: 4153: 4150:52 × 7 = 364 4147: 4141: 4137: 4129: 4125: 4121: 4117: 4111: 4107: 4103: 4101: 4094: 4090: 4084: 4080: 4076: 4073: 4068: 4062: 4058: 4050: 4046: 4040: 4036: 4031: 4027: 4021: 4019: 4014: 4007: 4002: 3998: 3994: 3990: 3986: 3984: 3978: 3974: 3970: 3966: 3962: 3960: 3955: 3953: 3945: 3941: 3932: 3931:= 6, and (11 3928: 3924: 3906: 3886: 3882: 3863: 3859: 3838: 3834: 3830: 3826: 3819: 3802: 3798: 3791: 3783: 3779: 3775: 3771: 3767: 3749: 3745: 3738: 3721: 3717: 3713: 3706: 3677: 3666: 3660: 3631: 3619: 3612: 3583: 3572: 3566: 3549: 3543: 3526: 3520: 3503: 3497: 3483: 3468: 3462: 3455: 3435: 3414: 3402: 3397: 3391: 3352: 3338: 3334: 3330: 3321: 3298:Ludwig Lange 3296: 3274:conjunctions 3261: 3249: 3223: 3128:Pridie nonas 3084:quatuor dene 3062:quatuor idus 3032:etiam sexis, 3029:Idus Aprilis 2999: 2974: 2969: 2965: 2964:years. This 2955: 2948: 2937: 2934: 2926: 2541: 2530: 2509: 2485: 2471: 2452: 2450: 2446: 2439: 2422: 2407: 2402: 2398: 2394: 2390: 2386: 2382: 2378: 2374: 2370: 2364: 2358: 2339: 2329: 2324: 2287: 2283: 2279: 2272: 2261: 2257: 2246: 2189:× 100 + 1 × 2169:4 × 25 = 100 2166: 2143: 2114:saltus lunae 2101: 2093: 2085: 2073: 2057: 2054: 2039: 2030: 2020: 2013: 2006: 1999: 1987: 1975:Please help 1970:verification 1967: 1935: 1931: 1926: 1922:Julian years 1919: 1914: 1907: 1902:saltus lunae 1895: 1891: 1887: 1886:rather than 1883: 1878: 1877: 1875: 1870: 1868: 1410: 1270: 1256: 1252: 1244: 1234: 1226: 1218: 1100: 1099: 915: 908: 901: 889: 882: 853: 838: 829: 819: 812: 805: 798: 786: 774:Please help 769:verification 766: 749: 724:Thanksgiving 712: 707:76 × 6 = 456 684: 679: 675: 667: 665: 659: 655: 639: 634:saltus lunae 617: 613:, p. 44 611:Wheatly 1871 596:pares menses 580: 566: 562: 550: 537: 512: 493: 452: 444: 409: 407: 391: 380: 355: 344: 328: 317: 292: 277: 249: 202: 134: 132: 123:Roman Empire 116: 92:lunar months 65: 59: 53: 35: 26: 18:Easter table 11654:Eschatology 11526:Whit Monday 11462:Film and TV 11129:Easter eggs 10894:Easter whip 10871:Bright Week 10813:Calculation 10662:Philippines 10608:By location 10599:Processions 10439:Lamentation 10402:Good Friday 10360:Last Supper 10355:Chrism Mass 10305:Holy Monday 10281:Palm Sunday 10217:Lenten veil 10205:Passiontide 10158:Lent proper 9953:Italic font 9703:Good Friday 9691:Chrism Mass 9654:Palm Sunday 9641:Passiontide 9524:Holy Family 9443:Rorate Mass 9175:Good Friday 9163:Chrism Mass 9135:Palm Sunday 9033:Holy Family 8868:Computuslat 8818:(in German) 8609:: 699–710. 8537:: 407–411. 8412:27 November 8230:27 November 8187:27 November 8099:: 215–219. 8045:. On-line: 8033:14 December 7993:14 December 7899:16 November 7284:Grumel 1958 7272:Grumel 1958 7100:1765, with 6947:6 September 6815:: 156–164. 6771:Ginzel 1914 6282:Turner 1895 6059:calendarium 6053:sixth canon 6011:placed the 5992:placed the 4258:submission 4093:March 22 + 3622:) div 25 = 3359:subtraction 3265:Kalendarium 3150:Pridie idus 3051:Item undene 2957:solar cycle 2954:years, the 2173:−1 × 2120:calendarium 1876:The label " 1239:calendarium 890:The Easter 662:mod 19) + 1 590:pares lunae 510:days long. 503:, which is 497:lunar cycle 420:Tycho Brahe 362:Charlemagne 336:Palm Sunday 11704:Categories 11674:Golden Age 11669:Heortology 11664:Eviternity 11649:Divination 11536:Ember days 11314:Liturgical 11222:By country 11192:By country 11146:Decorating 11047:Traditions 10712:Valladolid 10583:Traditions 10444:Epitaphios 10185:Ember days 10170:Great Lent 10145:Maslenitsa 10130:Mardi Gras 10111:Shrovetide 10092:Sexagesima 9978:Tridentine 9858:Assumption 9847:Visitation 9566:Sexagesima 9389:Roman Rite 9322:Assumption 9299:Visitation 8926:Roman Rite 8776:(Contains 8135:Explicatio 7932:Eusebius, 7907:Explicatio 7601:Meeus 1991 7373:Zeyer 2020 7356:Lange 1928 7218:Teres 1984 7080:31 January 7069:. Canada. 7067:U. Toronto 7044:31 January 7036:. Canada. 7034:U. Toronto 6177:John 19:14 6055:, and the 5915:References 5864:5 May 2024 5861:1 May 2016 5472:Expression 5198:Expression 4577:Expression 4562:Jean Meeus 4272:Remainder 3575:div 100 = 3480:Expression 3375:assignment 3344:Algorithms 3233:concurrent 2952:4 × 7 = 28 2824:full moon 2718:full moon 2614:full moon 2474:papal bull 2399:Easter-day 2381:after the 2375:Easter-day 2003:newspapers 1116:full moon 899:counted". 877:Explicatio 832:March 2019 802:newspapers 629:0 (mod 30) 445:This Nisan 403:Protestant 284:Augustalis 235:on 1 193:See also: 189:Background 151:Theophilus 96:solar year 11488:Pentecost 11328:Troparion 10963:Radonitsa 10906:Wednesday 10852:Trikirion 10692:Salamanca 10666:Portugal 10625:Guatemala 10614:Colombia 10540:Holy Fire 10517:Święconka 10272:Holy Week 10140:Fastelavn 10058:its cycle 9803:Pentecost 9784:Ascension 9659:Holy Week 9479:Christmas 9264:Pentecost 9258:Ascension 9140:Holy Week 9015:Christmas 8625:(1871) . 8594:117094612 8522:118491152 8339:120081352 8298:115765809 8261:120639320 8247:: 45–76. 8060:Argumenta 7799:121657716 7686:(1907) . 7488:Bien 2004 7386:"Gauß-CD" 7320:Bede 1999 6687:Bede 1999 6668:cite book 6433:Bede 1999 6421:Bede 1907 6405:Bede 1943 6393:Bede 1907 6270:Bede 1999 6258:Anatolius 6246:Bede 1999 6212:Bede 1999 6200:Bede 1999 6188:Bede 1999 6165:Bede 1999 6153:Bede 1999 6129:Ayto 2009 6116:Citations 4237:= 28 and 3944:= 29 and 3770:= 15 and 3278:Nuremberg 3268:of 1474, 2531:The last 2391:Full Moon 2383:Full Moon 2033:July 2020 904:full moon 715:full moon 531:translit. 471:Jerusalem 424:Uraniborg 213:lunisolar 108:algorithm 84:full moon 11679:Prophecy 11659:Eternity 11634:Calendar 11342:Cantatas 11106:Postcard 11091:Greeting 10921:Saturday 10911:Thursday 10842:Alleluia 10553:Exsultet 10365:Crotalus 10337:Tenebrae 10107:Carnival 10075:Pre-Lent 9995:Computus 9973:pre-1955 9681:Tenebrae 9593:Sundays 9553:Pre-Lent 9518:Epiphany 9417:Sundays 9214:Sundays 9092:Sundays 9046:Epiphany 8954:Sundays 8824:Archived 8739:Archived 8723:Archived 8702:Archived 8670:Archived 8553:(1922). 8474:21 March 8468:Archived 8435:Archived 8406:Archived 8373:Archived 8224:Archived 8216:(1928). 8181:Archived 8179:. Hahn. 8149:archived 8127:Archived 8050:Archived 8027:Archived 8009:(2008). 7987:Archived 7939:Archived 7924:Archived 7893:Archived 7868:Archived 7841:11 March 7835:Archived 7760:11 March 7754:Archived 7721:Archived 7700:23 March 7694:Archived 7653:13 April 7647:archived 7470:9 August 7435:9 August 7400:9 August 7394:Archived 7252:archived 7203:9 August 7176:9 August 7143:Archived 7122:9 August 7071:Archived 7038:Archived 6941:Archived 6933:(1837). 6906:Archived 6876:Archived 6825:Archived 6520:23 March 6514:Archived 6512:. 2014. 6484:Archived 6463:11 March 6348:Archived 5874:See also 5469:Variable 5195:Variable 4960:) mod 7 4668:mod 100 4574:Variable 4389:− 4385:− 4269:Quotient 4263:Dividend 3805:) mod 30 3724:) mod 30 3669:div 4 = 3477:Variable 3367:division 3355:addition 3325:computus 3316:computus 3309:computus 3303:computus 3292:New Moon 3287:computus 2990:computus 2983:, after 2822:Paschal 2716:Paschal 2612:Paschal 2517:computus 2496:computus 2490:computus 2469:in 988. 2352:and the 2337:Anglican 2317:New moon 2292:⁠3 2061:Eusebius 1303:, 1907). 1114:Paschal 893:computus 880:(1603). 867:computus 857:computus 738:computus 608:— 371:computus 353:in 664. 296:computus 263:computus 209:Passover 162:computus 156:computus 146:computus 112:Passover 94:and the 66:computus 11644:Destiny 11639:Deities 11519:Whitsun 11209:Ukraine 11199:Croatia 11183:Tossing 11173:Tapping 11158:Rolling 11023:Cenacle 10717:Viveiro 10707:Seville 10618:Popayán 10449:Encomia 10325:Triduum 9990:Ranking 9391:of the 9387:of the 8928:of the 8924:of the 8907:of the 8644:: 5–10. 8574:Bibcode 8539:Bibcode 8502:Bibcode 8319:Bibcode 8278:Bibcode 8206:4260118 8155:23 July 8101:Bibcode 7975:. Isd. 7958:Bibcode 7779:Bibcode 7623:Sources 7585:Bibcode 7149:26 June 6915:26 June 6868:Bibcode 6817:Bibcode 6637:"epact" 6621:at the 6603:ἐπακτός 6490:26 June 6354:26 June 5750:⁠ 5731:⁠ 5580:mod 19 5358:⁠ 5335:⁠ 5307:⁠ 5285:⁠ 5257:⁠ 5241:⁠ 5084:⁠ 5061:⁠ 5006:⁠ 4984:⁠ 4944:(32 + 2 4897:⁠ 4883:⁠ 4819:⁠ 4800:⁠ 4772:⁠ 4757:⁠ 4706:⁠ 4692:⁠ 4641:⁠ 4627:⁠ 4603:mod 19 4266:Divisor 3841:) mod 7 3752:) mod 7 3688:⁠ 3674:⁠ 3642:⁠ 3627:⁠ 3618:(13 + 8 3594:⁠ 3580:⁠ 3465:> 10 3446:⁠ 3432:⁠ 3425:⁠ 3411:⁠ 3262:In his 2550:number 2548:Golden 2522:Francia 2401:is the 2313:Kidinnu 2307:⁠ 2203:⁠ 2191:⁠ 2187:⁠ 2175:⁠ 2158:⁠ 2146:⁠ 2123:of the 2017:scholar 1949:Details 986:number 984:Golden 872:Clavius 816:scholar 670:in the 479:+ 2 21) 422:at his 332:Eanflæd 274:History 175:Eastern 139:(725), 11506:Octave 11497:Season 11260:Ēostre 11244:Poland 11239:Latvia 11204:Poland 11096:Parade 11064:Bonnet 11059:Basket 11028:Novena 10916:Friday 10862:Octave 10827:Season 10742:Easter 10722:Zamora 10687:Málaga 10682:Cuenca 10650:Mexico 10629:Italy 10298:Ferias 10054:Easter 9949:Legend 9920:Legend 9736:Octave 9410:Advent 9208:Octave 8947:Advent 8592: 8520: 8460: 8441:7 June 8398: 8379:9 June 8365: 8337: 8296: 8259: 8204: 8077: 8019: 7979: 7874:9 June 7860: 7816: 7797: 7746: 7727:9 June 7672: 7508:: 487. 7506:Nature 7258:4 July 7244: 6988: 6882:17 May 6831:17 May 6051:, and 6049:fourth 6045:second 6014:saltus 5995:saltus 5695:+ 114 5545:mod 7 5510:mod 4 5478:= 2008 5204:= 1961 5171:Nature 5037:+ 114 4924:mod 4 4733:mod 4 4583:= 1961 4519:Nature 4429:32 + 2 4256:Nature 3927:= 28, 3712:(15 − 3630:13 + 8 3506:mod 19 3486:= 1777 3373:, and 3371:modulo 2921:March 2817:April 2711:April 2403:Sunday 2395:Sunday 2379:Sunday 2140:apart. 2019: 2012: 2005: 1998: 1990: 1359:xxviii 1222: 1213:March 1048:Epact 818: 811: 804: 797: 789: 703: 699: 676:before 643:saltus 627:, not 534: 516:epacts 505:29.530 490:Theory 483: 467:Aleppo 447: 440: 366:Alcuin 100:Julian 76:Easter 58:, the 11469:Films 11410:Hymns 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