Date of Easter - Knowledge

2080:, 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%. 2052:, 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. 2088:. 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. 1862:. 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. 2921:

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).

706:) 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 1871:" (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 8986: 2422: 2068: 1914:

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

2056: 1281: 3317:. 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). 2433:, 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. 2229: 28: 9996: 5871: 1948: 747: 2409:, 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. 895:. 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. 1918:(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. 2472:, 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." 1209:

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

902:, 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. 6096:

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

2323:

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

2273:

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

1897:

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

1260:

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

1238:

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

1208:

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

3320:

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

3247:

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

2083:

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

635:

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

474:

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

438:

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

3324:

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,

3301:

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

2920:

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

239:

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,

4233:

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

2247:

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

2063:

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

1921:

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

2224:

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

2047:

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

698:

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

2248:

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.

1242:

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.

1224:

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

607:

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

2436:

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

2475:

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

1220:

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,

5448:

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.)

887:

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

381:

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

2075:

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

2124:

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

2437:

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.)

1930:) 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 1246:

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

1257:(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. 1925:

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

4216:

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

3328:

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.

620:. 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 2120:

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

1913:

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

2412:

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

483:

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

4221:

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)

4088:, 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. 4001:

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.

3456:. 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 318:

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

502:

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

6082:

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

2091:

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):

552:"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: 1265: 114:

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

248:

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

1887:

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

4076:

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.

6553: 4141:, 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 2269:

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.

872:

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

2236:

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

2128:

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

2099:

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

1225:

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

4163:

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,

4063:

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

626:("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. 3321:

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.

212:, 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 154:

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

3947:

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.

1243:

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.

6400:(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. 2262:

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

2064:

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.

6559: 6097:

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.

2916:

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

2212:

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

300:, 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 8884: 4172:

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.

1216:

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

2429:

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

363:

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

6435: 2509:

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.

5942:, 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. 2528:, 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. 4203:

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.

2204:

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

419:, 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 877:

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

699:

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).

9759: 9238: 2935:). 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. 8208:"Paradoxe" Osterdaten im Gregorianischen Kalender und ihre Bedeutung für die moderne Kalender reform von Ludwig Lange. Vorgelegt von Eduard Schwartz am 7. Juli 1928 4024:

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

11593: 9754: 9233: 311:

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

9590: 9089: 3213:

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

2989:

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:

2394:

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.

1239:

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").

9595: 9094: 5444:(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 2076:

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

3311:

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

2232:

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

8877: 335: 11385: 540:

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

7382: 7059: 2352:

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

11369: 8658: 370:

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

4234:

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

4123:. 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, 6502: 2986:(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. 11337: 8870: 8137: 6662: 674:

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

3385:

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

2259:, pp. 45–76) if the corrections are combined, then the inaccuracies of the two cycles are also added and cannot be corrected separately. 2221: 667:

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

11361: 8739: 7894:

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

2308:). 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). 8625:

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

7440: 7405: 7131: 6864: 6813: 11586: 9978: 7181: 7927: 7635: 3308:

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

8423: 7240: 106:

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

7682: 6929: 4199:

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

4099:

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.

8169: 6472: 4072:, 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 10685: 8680:, (Abhandlungen der königlichen Gesellschaft der Wissenschaften zu Göttingen. Pilologisch-historische Klasse. Neue Folge, Band viii.) 6442: 2277:

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

8727: 8711: 4545: 8115: 2244:

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

11579: 9956: 2217: 8831: 7026: 6968: 11421: 10756: 10621: 10554: 8046: 8038: 2348:

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

367:. The only Eastern Orthodox church which does not follow the system is the Finnish Orthodox Church, which uses the Gregorian. 8450: 8388: 8355: 8067: 8009: 7969: 7912: 7850: 7806: 7736: 7662: 6894: 2133:

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

2106:

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

2012: 811: 8781: 8690: 8456: 8394: 8361: 8212: 8015: 7975: 7881: 7856: 7823: 7742: 7709: 11280: 4195:, which is the desired operation. Thus, again, we do subtraction by adding under modulo arithmetic. In total, the variable 2489: 1984: 783: 279:

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

8104:, Translated by G. A. Williamson. Revised and edited with a new introduction by Andrew Louth. Penguin Books, London, 1989. 6589: 6396:, p. 90: The letter is at once a report and an apology or justification to Abbot Seghine at Iona of a synod held at 6336: 10999: 10690: 9481: 8796: 7901:

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

275:

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

8822:

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

7154: 3302:

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

11462: 10613: 9437: 8969: 8656:

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

2969: 1264: 898:

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

6558:, Aleppo, Syria: World Council of Churches/Middle East Council of Churches Consultation, 10 March 1997, archived from 2225:

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

1991: 790: 544:(or embolismic month) of 30 days must be inserted into the lunar calendar: then 30 must be subtracted from the epact. 11345: 7234: 6978: 6006:

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

5987:

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

2031: 830: 8859:

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

8228:

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

5964:

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

3997:

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

3342:

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

439:

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

11377: 11287: 11139: 10033: 9867: 9830: 9040: 9027: 8853:

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

8439:

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

734: 171: 458:

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

442:

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

11353: 10471: 9487: 8782:

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

1965: 764: 4187:

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

1998: 797: 170:(which follow the Julian calendar). It was the drift of 21 March from the observed equinox that led to the 11708: 11406: 10277: 9961: 9824: 9385: 9298: 8812: 8257:

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

1969: 768: 576:, or unequal months, have their moons according to computation of thirty days each, which are therefore called 338:

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

18:

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

8655: 7374: 7048: 3363: 3295:. In cases where the first vernal full moon according to astronomical calculation occurs on a Sunday and the 2349: 35:, Italy. Five 19-year cycles are represented as concentric circles. Dates are given using the system of the 11698: 10650: 10368: 10358: 9840: 9818: 9684: 9304: 9292: 9156: 5896: 1980: 779: 6951: 3283:. In eighteen cases the date differed by a week, in seven cases by 35 days, and in five cases by 28 days. 11411: 10626: 6630: 6606: 6015:"the of a year AD is found by adding one, dividing by 19, and taking the remainder (treating 0 as 19)."( 3395: 1261:

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

1221:

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

371: 315:(now France) and Spain until they were displaced by Dionysian tables at the end of the 8th century. 292:

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

233: 217: 8481:

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

7104:

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

6646: 4505:"A New York correspondent" submitted this algorithm for determining the Gregorian Easter to the journal 2982:

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

11529: 8851:

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

7452: 7417: 6601: 6494: 3273:

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

386:

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

139: 8786: 6223: 663:

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

11552: 9835: 9619: 9287: 9282: 9118: 8681: 4521: 3239:

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

2976:, who prepared Easter tables that started in 532. He apparently did not realize that the Alexandrian 2255:

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

582:, or equal moons: but the second, fourth, sixth, eighth, tenth, and twelfth months, which are called 451: 8850: 8846:

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

8131: 6212: 1231:. The ecclesiastical new moons for any year are those dates when the epact for the year is entered. 11321: 11293: 11069: 10796: 9872: 9512: 9458: 9350: 8202: 3373:. More importantly, using such conditionals also simplifies the core of the Gregorian calculation. 3286: 2917: 703: 256: 187: 19: 8792:

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

6165: 3994:

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

1858:

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

859:

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

99:

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

11718: 11713: 11703: 11547: 10961: 10922: 10700: 10432: 9807: 9744: 9734: 9424: 9414: 9276: 9223: 9206: 8961: 8951: 8615: 7127: 4538: 3262: 1958: 1235: 757: 488:, over the long term the average month in the lunar calendar is a very good approximation of the 443: 375: 241: 10606: 7185: 2425:

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

702:

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

636:

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

196:, which Christians believe to have occurred on the third day (inclusive) after the beginning of 11606: 11004: 10971: 10956: 10680: 10422: 10378: 10000: 9945: 9772: 9749: 9739: 9409: 9246: 9228: 9218: 8922: 7920: 7226: 3355: 2965: 2945: 2451: 2334: 2125:

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

1910: 308: 10675: 8985: 8701:

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

8411: 8057: 7937:

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

7623: 7514: 7490: 7225:, Nicene and Post-Nicene Fathers: Second Series, vol. 14, The Seven Ecumenical Councils, 7220: 7084:

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

4044:

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

3954:, the number of days (counting from 22 March) to the day after the full moon. The formula for 11627: 10751: 10427: 10410: 10373: 10353: 10241: 9613: 9112: 8837:

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

7619: 7502: 6925:"Die Osterrechnung oder Vorschlag zur Einführung eines kirchlichen Kalenders und Osterkanons" 6923: 6194: 4149:

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

2358:, and therefore it is the general Anglican rule. The original act can be seen in the British 2354: 2329: 519: 387: 276: 193: 124: 8163: 6468: 3289:

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

2005: 804: 304:(counting years from the Incarnation of Christ) by publishing this new Easter table in 525. 162:(which follow the Gregorian calendar) celebrate Easter on a different date from that of the 11457: 11398: 11021: 10705: 10695: 10587: 10417: 10168: 10163: 10026: 9896: 9345: 8802:

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

8562: 8539: 8527: 8490: 8307: 8266: 8089: 7946: 7767: 7573: 6919: 6856: 6805: 5890: 4557:. Because of the Meeus book citation, this is also called "Meeus/Jones/Butcher" algorithm: 4526: 3382: 2500: 2493: 2213: 2049: 899: 245: 221: 8757: 138:

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

8: 11494: 11187: 10932: 10710: 10670: 10638: 10231: 9966: 9585: 9517: 9372: 9211: 9084: 8862: 7676: 5876: 2521: 533: 397:

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

293: 272: 209: 159: 8724: 8708: 8566: 8531: 8494: 8311: 8270: 8093: 7950: 7771: 7577: 7102: 6860: 6848: 6809: 6793: 1931: 11437: 10994: 10665: 10658: 10643: 10633: 10466: 10437: 10363: 10123: 9973: 9913: 9878: 9857: 9846: 9506: 9327: 9321: 9310: 9034: 8909: 8578: 8506: 8323: 8282: 8245: 8112: 7783: 6656: 5166:

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

2968:

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

2430: 2274:

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

2263: 1927: 1289: 1285: 850: 364: 307:

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

268: 201: 183: 167: 92: 8836: 5996:

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

5977:

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

31:

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

11672: 11416: 11316: 11107: 11035: 10840: 10500: 10215: 9891: 9340: 8582: 8510: 8446: 8384: 8351: 8327: 8286: 8249: 8190: 8063: 8005: 7991: 7965: 7846: 7802: 7787: 7732: 7694: 7658: 7230: 7018: 6974: 2973: 2514: 2476:

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

2467: 2160:

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

541: 407:, which were in turn based on astronomical positions of the Sun and Moon observed by 399: 297: 163: 68: 32: 8688:

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

6771:

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

570:"For the first, third, fifth, seventh, ninth, and eleventh months, which are called 240:

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

11485: 11232: 11227: 11192: 11079: 10894: 10850: 10582: 10459: 10398: 10182: 9852: 9783: 9724: 9316: 9196: 8650:

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

8599: 8570: 8498: 8315: 8274: 8237: 8077: 7775: 5884: 4516: 4507: 3359: 3270: 2421: 2406: 2342: 2077: 1906:

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

1248: 611: 465: 431:

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

422: 10877: 8821: 8543: 7906: 7090: 7083: 6888:"The missing new moon of A.D. 16399 and other anomalies of the Gregorian calendar" 6887: 3986:

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

296:) covering the years 437 to 531. This Paschal table was the source which inspired 75:, on or after 21 March – itself a fixed approximation of the 11571: 11273: 11222: 11166: 11094: 10927: 10909: 10899: 10778: 10449: 10335: 10313: 10236: 10019: 9674: 9661: 9497: 9373: 9146: 9138: 8910: 8897: 8893: 8816: 8762: 8731: 8715: 8694: 8687: 8662: 8611: 8440: 8378: 8345: 8206: 8119: 8042: 7999: 7995: 7959: 7931: 7916: 7873: 7840: 7817: 7796: 7726: 7703: 7652: 6611: 5965: 5922: 4160:

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

2517:, and southern Italy) accepted it during the last quarter of the eighth century. 2454:

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

1269: 675: 545: 404: 339: 289: 155: 116: 88: 10478: 8810:

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

8791: 7758:

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

6045: 6041: 6037: 6033: 6029: 3219:, or weekday displacement, of the day of that year's paschal full moon from the 588:, or equal months, have their moons but twenty nine days each, which are called 11534: 11134: 11099: 10889: 10835: 10773: 10768: 10523: 10505: 10303: 10209: 10201: 10178: 10113: 9801: 9637: 9600: 9419: 9270: 9104: 9099: 8956: 8574: 8502: 8278: 8035: 6332: 5445: 3351: 2455: 2402: 2345:, which (in the Easter section of the book) were presumed to be already known. 2338: 2216:

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

707: 637: 508: 383: 60: 44: 36: 8472:

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

8380:

Scandalous Error: Calendar Reform and Calendrical Astronomy in Medieval Europe

8241: 7779: 7278: 4511:

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

11692: 11089: 11084: 11052: 11047: 10986: 10976: 10966: 10904: 10872: 10534: 10488: 10454: 10153: 10108: 10085: 9766: 9696: 9577: 9559: 9473: 9262: 9168: 9076: 9050: 9014: 9009: 8994: 8946: 8776: 8617:

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

8107:

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

7158: 6597: 6580:

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

3258: 3244: 2531:

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

2071:

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

1280: 1217: 489: 391: 229: 84: 76: 11519: 11310: 11156: 11062: 11057: 10763: 10515: 10404: 10298: 10246: 10075: 10046: 9988: 9917: 9813: 9701: 9549: 9381: 9173: 8918: 8603: 8194: 4060:

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

2115: 2067: 712: 427:. However, it was delayed one week if that Sunday was the Jewish date Nisan 416: 271:

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

111: 8832:

Mnemonic Computus Diagrams of Hands from manuscript in The British Library

8787:

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

8518:

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

7839:

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

7681:. Translated by Sellar, A. M.; Giles, J. A. London: George Bell and Sons. 2513:(all of western Europe except Scandinavia (pagan), the British Isles, the 2055: 1268:

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

11642: 11514: 11171: 11161: 11146: 11074: 10882: 10859: 10390: 10348: 10343: 10293: 10269: 10205: 10193: 9691: 9679: 9642: 9629: 9443: 9431: 9163: 9151: 9123: 9021: 8975: 8826: 8801: 8666:, (Vatican City: Pontifical Academy of Sciences, Specolo Vaticano, 1983). 6625: 4134:

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

3971:

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

3347: 3240: 660: 485: 408: 350: 324: 301: 213: 80: 6375: 6351: 5174:(to which one must be added to obtain the date of Easter) with variable 11662: 11657: 11637: 11524: 11117: 10815: 10173: 10158: 10133: 10118: 10099: 10080: 10011: 9862: 9796: 9711: 9607: 9554: 9448: 9377: 9183: 8914: 8319: 4550: 2525: 2462: 1972: in this section. Unsourced material may be challenged and removed. 771: in this section. Unsourced material may be challenged and removed. 255:

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

79:). Determining this date in advance requires a correlation between the 8648:

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

6469:"The Many Easters & Eostres for the Many: A Choice of Hallelujahs" 320: 27: 11502: 11476: 11129: 10951: 10528: 10260: 10128: 9884: 9791: 9647: 9522: 9467: 9333: 9252: 9128: 9058: 9003: 6717: 6693: 3266: 2228: 892: 524: 459: 412: 96: 72: 11248: 8809: 8735:(Continued), Popular Astronomy, May 1945, Vol. 53, pp. 218–232. 3990:; it is just a coincidence that another '19' appears. The '19' in 19 3248:

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

1947: 1284:

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

905:

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

746: 11667: 11647: 11622: 11151: 10830: 10541: 10325: 10095: 10063: 9995: 9983: 9669: 9541: 8590:

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

6240: 4095:, the additional offset days that must be added to the date offset 3343: 3280: 2325: 2305: 1902:) by subtracting one in these century years. This is the so-called 891:

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

447: 197: 119:, by deriving the date for Easter directly from the March equinox. 100: 10442: 8845: 7290: 7155:"The Calculation of Easter Sunday after the Book of Common Prayer" 3370:

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

2961:, after Victorius of Aquitaine, who introduced it in Rome in 457. 11632: 11507: 11197: 11011: 9948:

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

8553:

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

8155:

Handbuch der mathematischen und technischen Chronologie, Band III

6828: 6729: 5870: 2510: 2440:

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

2311: 2301: 863:

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

860: 8133:

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

6073:

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

87:, while also accounting for the month, date, and weekday of the 11217: 11016: 10867: 10739: 10730: 10042: 9719: 9398: 9191: 8935: 6466: 1234:

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

455: 354: 64: 1272:. Each column corresponds to a period of 28 years. Notice the 110:. By the early third century, however, communications in the 11652: 10549: 7876:

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

7319: 7317: 6590: 2150: 1899: 874: 512: 504: 328: 225: 205: 8758:

Excel spreadsheet formulae and functions to calculate Easter

6203:, pp. 425–426, Appendix 4: A Note on the Term Computus. 2374:, which happens upon, or next after the Twenty-first Day of 2266:, so the Gregorian parameters become increasingly obsolete. 2196:. This is prime to the 30 possible epacts, so it takes 1894:

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

11677: 11617: 11602: 10054: 9569: 9532: 9068: 8719:, Popular Astronomy, April 1945, Vol. 53, pp. 162–179. 7672: 7595: 7545: 6999: 6644: 6363: 6276: 6228: 2983: 1273: 686:

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

346: 312: 129: 107: 8892: 8856: 8653:

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

8294:

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

7731:. Translated by Faith Wallis. Liverpool University Press. 7533: 7472: 7470: 7314: 6987: 6534: 6252: 2397:

The method is quite distinct from that described above in

682:

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

323:, on the Dionysian system – fasted on her 51:

is determined in each year through a calculation known as

7795:

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

7794: 6415: 6357: 6264: 6084: 6061: 6016: 5952: 5938:

The lunar cycle of Anatolius, according to the tables in

204:

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

8777:

The entry on epacts in the Catholic Encyclopedia of 1911

8347:

The Easter Computus and the Origins of the Christian Era

7819:

The Ecclesiastical calendar: its theory and construction

7488: 7357: 7355: 7353: 6705: 1934:

for information on the cumulative change of day length.

103:

which, Christians believe, is when Jesus was crucified.

71:(a mathematical approximation of the first astronomical 8165:

Zeitrechnung des deutschen Mittelalters und der Neuzeit

7467: 6577: 6567: 6524: 6522: 6520: 6147: 3982:) mod 30 repeats every 19 years within each century as 3234: 2949:. So the Easter dates repeated in the same order after 849:

was the primary motivation for the introduction of the

267:

The earliest known Roman tables were devised in 222 by

8189:(in French). Paris: Presses Universitaires de France. 7583: 7521: 6953:"Almanac and Astronomical Ephemeris for the year 1931" 6312: 6300: 6288: 6123: 5170:. Some tidying results in the replacement of variable 7350: 7302: 6741: 6403: 3924:+ 11) mod 30 < 19, replace 25 April with 18 April 2492:

during the first decade of the 4th century using the

2398: 475:

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

331:, king of Northumbria, feasted on his Easter Sunday. 8476:(3rd ed.). Mill Valley, CA: Univ Science Books. 7838: 7340: 7338: 7336: 7334: 7332: 7284: 7266: 7254: 7200: 6928:. Riga: Eduard Frantzen's Buchhandlung. p. 59. 6669: 6648:

Explanatory Supplement to the Astronomical Ephemeris

6517: 6182: 6135: 5866: 5162:

algorithm incorporating a few changes. The variable

5090: 3950:

The first part consists of determining the variable

3367:

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

8055: 7296: 6973:. Washington: U.S. Naval Observatory. p. 582. 6967:Doggett, L.E. (1992). Seidelmann, P.Kenneth (ed.). 6794:"The Frequency Distribution of the Dates of Easter" 6681: 6460: 3231:is repeated in Roman numerals in the third column. 2503:accepted it shortly after 380 after converting the 2444:. This term was first used in the computistic poem 2096:

Lunations of 31 (and sometimes 28) days occur.

2044:This method of computation has several subtleties: 723: 11601: 8474:Explanatory Supplement to the Astronomical Almanac 7990: 6970:Explanatory Supplement to the Astronomical Almanac 6834: 6753: 6735: 6723: 6699: 6441:. Cyprus Action Network of America. Archived from 6387: 6111: 5142:indicates the month of the year (either March for 3279:disagreed with Easter computed using astronomical 2362:. The annexe to the act includes the definition: " 220:a leap month every two or three years, before the 7329: 7179: 7125: 6170: 5150:= 4), while the day of the month is obtained as ( 2240:Compendium Novae Rationis Restituendi Kalendarium 11690: 6956:. London: His Majesty's Stationery Office. 1929. 5893: – Christian gospel episode of darkened sky 4237: 8797:A calendar page and calculator by Holger Oertel 8113:"Les textes fondateurs du calendrier grégorien" 7566:Journal of the British Astronomical Association 5925:, see arguments for a 5th century date in 4535:Journal of the British Astronomical Association 2401:. For a general year, one first determines the 2366:(on which the rest depend) is always the first 374:, now celebrate Easter on different dates from 345:The Dionysian reckoning was fully described by 4056:to correct for leap days that never occurred. 2405:, then one uses three tables to determine the 2304:); the current value is 0.46 s less (see 450:in 1923 and the second was proposed by a 1997 11587: 10027: 8878: 8538: 7961:Anno Domini: The Origins of the Christian Era 7898:(Go to page: Roman Calendar of Gregory XIII). 7551: 5921:Although this is the dating of Augustalis by 5899: – Proposals to change the festival date 3755:For the Julian Easter in the Julian calendar 2461:The claim by the Catholic Church in the 1582 2324:practice), by a simple table of dates in the 2156:The solar and lunar corrections repeat after 671:add 1, so no such adjustment is necessary.) 353:for the Frankish Church as early as 782 from 208:. Nisan is the first month of spring in the 8409: 7601: 7229:, U.S.: Eerdmans Pub Co., pp. 112–114, 1213:2100 the difference will increase by a day. 67:is celebrated on the first Sunday after the 8763:The Complete Works of Venerable Bede Vol. 6 8673:, Cambridge University Press, London, 1903. 8227: 7702:Bede (1943). Charles Williams Jones (ed.). 6046: 6001: 5982: 5435: 3376: 3312: 3303: 3296: 3290: 3274: 3252: 3226: 3220: 3214: 2977: 2504: 2483: 2477: 2465: 2445: 2256: 2238: 2208:= 70,500,000 lunations. But there are net 2113: 2107: 2101: 1889: 1252: 1226: 880: 864: 854: 844: 725: 630: 621: 589: 583: 577: 571: 562: 556: 358: 283: 250: 216:: it resynchronizes with the solar year by 149: 143: 133: 52: 11594: 11580: 10858: 10034: 10020: 8885: 8871: 8343: 7489:A New York correspondent (20 April 1876). 7219:Schaff, Philip; Wace, Henry, eds. (1890), 7218: 6787: 6785: 6783: 6781: 6779: 6777: 6711: 6661:: CS1 maint: location missing publisher ( 6576:, p. 587: The day consists of 86,400 5926: 1898:for this (partially – see 558:Impar luna pari, par fiet in impare mense; 357:, a follower of Bede. The Dionysian/Bedan 8161: 8059:Carmina Medii Aevi Maximam Partem Inedita 7908:Documents from the First Council of Nicea 7657:(3rd ed.). OUP Oxford. p. 123. 6747: 5951:For confirmation of Dionysius's role see 4080:So the first allowable date of Easter is 3265:of the Sun and Moon for the longitude of 2337:). The table was indexed directly by the 2032:Learn how and when to remove this message 831:Learn how and when to remove this message 11387:Ich lebe, mein Herze, zu deinem Ergötzen 11339:Bleib bei uns, denn es will Abend werden 10041: 8703:, Oxford University Press, Oxford, 2001. 8480: 8471: 8438: 8293: 8256: 8129: 7957: 7678:Bede's Ecclesiastical History of England 7049:"Mean Northward Equinoctial Year Length" 7005: 6573: 6528: 6369: 6318: 6306: 6294: 6282: 6129: 4546:Practical Astronomy with your Calculator 4032:reinstalls it every 400 years, yielding 4028:inhibits a leap day every 100 years and 3389:in 1816. In 1800, he incorrectly stated 2420: 2227: 2066: 2054: 1279: 1263: 39:, as well as the day of the lunar month. 26: 8610: 8517: 8376: 8076: 7936: 7910:, "On the keeping of Easter" (near end) 7871: 7815: 7539: 7527: 7367: 7323: 6993: 6966: 6918: 6791: 6774: 6687: 6540: 6333:"Dionysius Exiguus – Liber de Paschate" 6330: 6324: 2964:It is first known to have been used by 2399:§ Gregorian reform of the computus 694:940 or about 29.530851 days. There are 599: 11691: 11371:Ein Herz, das seinen Jesum lebend weiß 10555:Rite of Christian Initiation of Adults 8589: 8298:Attributed to Anatolius of Laodicea". 8184: 8152: 7632:The Ecclesiastical History of Eusebius 7432: 7397: 7272: 7260: 7243:from the original on 28 September 2020 7180:Pope Gregory XIII (24 February 1582). 6885: 6846: 6759: 6270: 5383: 2924:Example calculation using this table: 2200:before the epact mappings repeat; and 2084:days. Now the lunar cycle counts only 11575: 11493: 11484: 11363:Der Himmel lacht! Die Erde jubilieret 10015: 9371: 8908: 8866: 8624: 8552: 8334: 8300:Archive for History of Exact Sciences 8201: 7822:. Dublin: Hodges, Foster and Figgis. 7760:Archive for History of Exact Sciences 7618: 7589: 7361: 7344: 7206: 6900:from the original on 25 February 2021 6427: 6384:, p. 193, Book III, Chapter XXV. 6358:Blackburn & Holford-Strevens 1999 6331:Audette, Rodolphe (9 December 2007). 6246: 6085:Blackburn & Holford-Strevens 1999 6062:Blackburn & Holford-Strevens 1999 6017:Blackburn & Holford-Strevens 1999 5953:Blackburn & Holford-Strevens 1999 4230:= 29 elsewhere in the 19-year cycle. 3441:. In 1807, he replaced the condition 3337: 2815:date, Western, 1900-2199 (Gregorian) 2149:of a lunation and not full days. See 564:In quo completur mensi lunatio detur. 11281:I Will Mention the Loving-kindnesses 8678:Christliche und jüdische Ostertafeln 8671:The Didascalia Apostolorum in Syriac 8555:Journal for the History of Astronomy 8483:Journal for the History of Astronomy 8339:. Richmond, Virginia: Willmann-Bell. 8259:Journal for the History of Astronomy 7757: 7724: 7701: 7671: 7650: 7476: 7385:from the original on 6 December 2016 7308: 7152: 7029:from the original on 20 January 2018 6675: 6645:H M Nautical Almanac Office (1974). 6421: 6409: 6393: 6381: 6258: 6234: 6200: 6188: 6176: 6153: 6141: 6117: 4543:, in 1988 by Peter Duffett-Smith in 3937:= 6, replace 26 April with 19 April 2320: 1970:adding citations to reliable sources 1941: 885:and the origins of the Christian era 769:adding citations to reliable sources 740: 349:in 725. It may have been adopted by 11422:The Strife is O'er, the Battle Done 8111:and the Six Canons. On-line under: 8051:in Latin, with English translation) 7654:Oxford Dictionary of English Idioms 6546: 3460:was wrong in the original version. 148:." By the end of the 8th century, 13: 10738: 9885:All Saints' Eve / All Hallows' Eve 9879:All Saints' Day / All Hallows' Day 9334:All Saints' Eve / All Hallows' Eve 9328:All Saints' Day / All Hallows' Day 8639: 8412:"How ten divisions lead to Easter" 8211:. Bayer. Akad. d. Wissenschaften. 8140:from the original on 1 August 2020 8080:(May 1916). "The date of Easter". 7638:from the original on 14 April 2021 6886:Roegel, Denis (24 November 2004). 6623: 6505:from the original on 23 March 2019 6475:from the original on 16 April 2021 6339:from the original on 15 April 2021 3325:2114, 2133, 2152, 2171, and 2190. 3225:, or the weekday of 24 March. The 2927:The golden number for 1573 is 16 ( 2416: 718: 14: 11730: 8751: 8459:from the original on 9 April 2023 8426:from the original on 9 April 2023 8397:from the original on 9 April 2023 8364:from the original on 9 April 2023 8215:from the original on 9 April 2023 8172:from the original on 9 April 2023 8056:Domus Quaedam Vetus (July 2009). 8018:from the original on 9 April 2023 7978:from the original on 9 April 2023 7884:from the original on 9 April 2023 7859:from the original on 9 April 2023 7826:from the original on 9 April 2023 7745:from the original on 9 April 2023 7712:from the original on 9 April 2023 7451:] (in German). Archived from 7438: 7416:] (in German). Archived from 7403: 7065:from the original on 5 March 2016 6932:from the original on 9 April 2023 6867:from the original on 9 April 2023 6855:. No. 52. pp. 139–142. 6816:from the original on 9 April 2023 6467:Re-vision Radio's Tower of Song. 6433: 5178:, which gives the date directly. 4191:is mod 7 the same as subtracting 378:four times every 532 years. 11288:Russian Easter Festival Overture 9994: 8984: 7798:The Oxford Companion to the Year 7708:. Mediaeval Academy of America. 7685:from the original on 12 May 2019 7134:from the original on 27 May 2021 6555:Towards a Common Date for Easter 5869: 5378: 5375: 5372: 5369: 5214: 5211: 5208: 5138:In this algorithm, the variable 4469: 4438: 4387: 4360: 4337: 4273: 4137:A normal year has 365 days, but 1946: 745: 735:Gregorian reform of the calendar 394:churches between 1753 and 1845. 174:, to bring them back into line. 172:Gregorian reform of the calendar 8827:Dionysius Exiguus' Easter table 8410:O'Beirne, T H (30 March 1961). 8377:Nothaft, C. Philipp E. (2018). 8153:Ginzel, Friedrich Karl (1914). 8122:, with some parts of Clavius's 7557: 7482: 7212: 7173: 7146: 7119: 7107:. Joseph Bentham. 9 August 1765 7095: 7077: 7041: 7011: 6960: 6944: 6912: 6879: 6840: 6765: 6638: 6617: 6583: 6487: 6217: 6090: 6076: 6067: 6054: 6022: 6009: 5990: 5971: 5958: 5945: 5932: 5915: 5453:Orthodox (Eastern) Easter date 4179:works the same way. Increasing 3261:computed the exact time of all 2253:4 × 8 − 3 × 25 = 43 epact 2086:19 × 354 + 19 × 11 = 6,935 days 1957:needs additional citations for 756:needs additional citations for 640:", and is given by the formula 11407:Christ the Lord Is Risen Today 10278:Triumphal entry into Jerusalem 8230:Mathematische Semesterberichte 8004:. Cambridge University Press. 7925:, Book III, Chapters XVIII–XIX 7845:. Early English Text Society. 7441:"Berichtigung ze dem aufsatze" 6835:Dershowitz & Reingold 2008 6798:The Irish Astronomical Journal 6736:Dershowitz & Reingold 2008 6724:Dershowitz & Reingold 2008 6700:Dershowitz & Reingold 2008 6436:"The Orthodox Church Calendar" 6206: 6159: 5835:Gregorian calendar equivalent 4241: 2210:−43 × (5,700,000/10,000) 259:falling on or after 21 March. 1: 8592:The English Historical Review 8344:Mosshammer, Alden A. (2008). 8157:. Leipzig, Germany: Hinrichs. 7872:Clavius, Christopher (1603). 7115:– via Internet Archive. 5903: 5809:Easter Day (Julian calendar) 4238:Anonymous Gregorian algorithm 4103:is determined by calculating 3332: 2488:, which was developed by the 2482:was based on the Alexandrian 2350:Calendar (New Style) Act 1750 2194:× 100 = −43 ≡ 17 mod 30 2059:Dates of Easter, 1900 to 2199 2048:council, on the authority of 1922:for the period 1900 to 2199. 415:observatory on the island of 177: 9293:Nativity of John the Baptist 8738:Weisstein, Eric. (c. 2006) " 8442:Encyclopaedia of Monasticism 8350:. Oxford: University Press. 7406:"Berechnung des Osterfestes" 6792:Davison, Michael E. (1980). 6104: 5897:Reform of the date of Easter 5887: – German mathematician 1288:reform to the year 2200 (by 525: 63:for 'computation'). 7: 11412:Jesus Christ Is Risen Today 8839:Nonae Aprilis norunt quinos 8383:. Oxford University Press. 8162:Grotefend, Hermann (1891). 7801:. Oxford University Press. 7019:"The Length of the Seasons" 6631:Online Etymology Dictionary 5862: 5313: 5158:published a version of the 5039: 4513:The Ecclesiastical Calendar 4091:The second part is finding 3381:In 1800, the mathematician 2992: 2933:1574 ÷ 19 = 82 remainder 16 537: "intercalary days"). 372:Assyrian Church of the East 10: 11735: 11530:Feast of Christ the Priest 11347:Christ lag in Todes Banden 10686:San Cristóbal de La Laguna 10001:Catholic Church portal 8575:10.1177/002182868401500302 8548:. London: Longsman, Green. 8503:10.1177/002182868601700204 8445:. Routledge. p. 468. 8279:10.1177/002182869302400304 7958:Declercq, Georges (2000). 7611: 7445:Astronomische Abhandlungen 7410:Astronomische Abhandlungen 7287:, pp. 136–7, 320–322. 6847:Walker, George W. (1944). 6591: 3235:"Paradoxical" Easter dates 2198:100 × 30 = 3,000 centuries 1937: 1276:used as arbitrary symbols. 732: 513: 262: 228:. Later Jews adopted the 181: 17: 11613: 11553:Feast of the Sacred Heart 11543: 11475: 11450: 11430: 11397: 11330: 11302: 11268: 11261: 11241: 11210: 11180: 11125: 11116: 11043: 11034: 10985: 10947: 10918: 10849: 10823: 10814: 10787: 10747: 10729: 10622:Barcellona Pozzo di Gotto 10596: 10578: 10571: 10514: 10496: 10487: 10389: 10369:Mass of the Lord's Supper 10334: 10321: 10312: 10286: 10268: 10259: 10224: 10192: 10146: 10094: 10071: 10062: 10053: 9934: 9905: 9782: 9710: 9685:Mass of the Lord's Supper 9660: 9628: 9568: 9540: 9531: 9496: 9457: 9397: 9393: 9367: 9261: 9182: 9157:Mass of the Lord's Supper 9137: 9067: 9049: 8993: 8982: 8934: 8930: 8904: 8682:Weidmannsche Buchhandlung 8669:Gibson, Margaret Dunlop, 8620:. London: Bell and Daldy. 8242:10.1007/s00591-003-0063-0 8130:van Gent, Robert (2019), 8102:The History of the Church 8030:Dionysius Exiguus (525): 7930:16 September 2009 at the 7780:10.1007/s00407-004-0078-5 7705:Bedae Opera de Temporibus 7564:"Letters to the Editor". 7285:Byrhtferth of Ramsey 1995 6060:Can be verified by using 5834: 5808: 5419: 5122: 3928: 3911: 3754: 2312:British Calendar Act and 1928:Lunar month#Synodic month 1417: 1414: 1406: 1403: 1393: 1390: 853:in 1582, a corresponding 726: 655:That is, the year number 478: 452:World Council of Churches 376:Eastern Orthodox Churches 365:Non-Chalcedonian Churches 334:As a result of the Irish 11379:Erfreut euch, ihr Herzen 11322:Victimae paschali laudes 11294:Salzburg Easter Festival 9059:Presentation of the Lord 8815:6 September 2003 at the 8001:Calendrical Calculations 7905:. English translations: 7842:Byrhtferth's Enchiridion 7816:Butcher, Samuel (1877). 7651:Ayto, John, ed. (2009). 7297:Domus Quaedam Vetus 2009 6064:, p. 825, Table 7. 5929:, pp. 217, 227–228. 5908: 5440:Jean Meeus, in his book 5436:Meeus's Julian algorithm 4540:The Old Farmer's Almanac 4243:Original format of 1876 3945:Gauss's Easter algorithm 3377:Gauss's Easter algorithm 3188: 3177: 2918:April 2015 lunar eclipse 1909:However, 19 uncorrected 724:Gregorian reform of the 390:and was adopted by most 257:ecclesiastical full moon 192:Easter commemorates the 188:List of dates for Easter 95:. The complexity of the 20:List of dates for Easter 11548:Feast of Corpus Christi 10962:Fourth Sunday of Easter 10923:Second Sunday of Easter 9946:holy days of obligation 9858:Exaltation of the Cross 9482:Octave Day of Christmas 9322:Exaltation of the Cross 8337:Astronomical Algorithms 7915:27 January 2013 at the 7126:Book of Common Prayer. 6849:"Rare Dates for Easter" 6607:A Greek–English Lexicon 6237:, pp. xxxv–xxxvii. 5442:Astronomical Algorithms 4555:Astronomical Algorithms 1236:ecclesiastical new moon 444:Revised Julian calendar 288:was converted from the 242:First Council of Nicaea 11607:religion and mythology 11355:Der Friede sei mit dir 11005:Feast of the Ascension 10972:Fifth Sunday of Easter 10957:Third Sunday of Easter 10691:Santa Cruz de La Palma 10423:Descent from the Cross 10379:Stripping of the Altar 9819:Saint John the Baptist 8661:18 August 2007 at the 8136:, Utrecht University, 8100:Eusebius of Caesarea, 7449:Astronomical Treatises 7414:Astronomical Treatises 7227:Grand Rapids, Michigan 6651:. London. p. 422. 6261:, pp. xxxviii–xl. 6047: 6002: 5983: 3313: 3304: 3297: 3291: 3275: 3253: 3243:(northern hemisphere) 3227: 3221: 3215: 3211: 2978: 2966:Annianus of Alexandria 2505: 2484: 2478: 2466: 2452:Alexander de Villa Dei 2446: 2426: 2360:Statutes at Large 1765 2335:Act of Uniformity 1662 2239: 2233: 2222:Explanatory Supplement 2114: 2108: 2102: 2072: 2060: 1890: 1293: 1277: 1253: 1227: 881: 865: 855: 845: 680:76 × 365 + 19 = 27,759 631: 622: 605: 590: 584: 578: 572: 563: 557: 359: 309:Victorius of Aquitaine 284: 251: 150: 144: 134: 53: 40: 11709:Christian terminology 10752:Resurrection of Jesus 10411:Stations of the Cross 9825:Saints Peter and Paul 9731:Sundays after Easter 9438:Immaculate Conception 9299:Saints Peter and Paul 8970:Immaculate Conception 8118:29 April 2012 at the 7939:Ricerche Astronomiche 7728:The Reckoning of Time 7620:Anatolius of Laodicea 7572:: 91. December 1977. 6598:Liddell, Henry George 6424:, pp. lix–lxiii. 6249:, Book 7, Chapter 33. 5998:Book of Common Prayer 5979:Book of Common Prayer 3958:contains the terms 19 2991: 2424: 2355:Book of Common Prayer 2330:Book of Common Prayer 2314:Book of Common Prayer 2279:29 days 12 hr 44 min 2231: 2070: 2058: 1283: 1267: 1251:for that year – from 733:Further information: 550: 548:provides the detail: 388:Roman Catholic Church 277:Anatolius of Laodicea 194:resurrection of Jesus 125:The Reckoning of Time 30: 11218:Ethiopia and Eritrea 11022:Matthias the Apostle 10418:Crucifixion of Jesus 10169:First Sunday of Lent 10164:Temptation of Christ 9897:Presentation of Mary 9523:Purification of Mary 9346:Presentation of Mary 8646:Borst, Arno (1993). 8604:10.1093/ehr/x.xl.699 8335:Meeus, Jean (1991). 6495:"Seasons calculator" 6156:, pp. xviii–xx. 5891:Crucifixion darkness 3447:+ 11) mod 30 < 19 3383:Carl Friedrich Gauss 2501:eastern Roman Empire 2494:Alexandrian calendar 2490:Church of Alexandria 2214:Magnus Georg Paucker 2206:(5,700,000/19) × 235 1966:improve this article 765:improve this article 610:19 × 11 = 209 ≡ 29 ( 594:, or unequal moons." 290:Alexandrian calendar 246:Church of Alexandria 11699:Calendar algorithms 11463:Television episodes 10933:Divine Mercy Sunday 10824:Liturgical features 10232:Ave Regina caelorum 9914:Ordinary Procession 9518:Baptism of the Lord 9212:Divine Mercy Sunday 9041:Baptism of the Lord 9028:Mary, Mother of God 8771:De Temporum Ratione 8730:17 May 2022 at the 8714:17 May 2022 at the 8693:15 May 2019 at the 8567:1984JHA....15..177T 8532:1924PA.....32..407S 8495:1986JHA....17..109S 8312:1996AHES...49..285M 8296:De ratione paschali 8271:1993JHA....24..204M 8185:Grumel, V. (1958). 8094:1916Obs....39..215D 8041:3 June 2008 at the 7996:Reingold, Edward M. 7951:1949RA......2..109D 7923:Life of Constantine 7772:2004AHES...58..439B 7628:quoted by Eusebius" 7578:1977JBAA...88...87. 7542:, pp. 215–219. 7479:, pp. 439–452. 7326:, pp. 275–277. 7188:on 13 February 2006 7182:"Inter Gravissimas" 7161:on 7 September 2015 7008:, pp. 109–118. 6996:, pp. 109–116. 6861:1944PA.....52..139W 6810:1980IrAJ...14..156D 6726:, pp. 114–115. 6702:, pp. 113–117. 6543:, pp. 407–411. 6448:on 26 November 2012 6372:, pp. 204–224. 6285:, pp. 285–320. 6273:, pp. 699–710. 6028:See especially the 5940:De ratione paschali 5877:Christianity portal 5783:+ 114) mod 31) + 1 5454: 4248: 3943:An analysis of the 3868:April Easter day = 3844:March Easter day = 3186:Quaternae kalendae 2957:is also called the 2711:Gregorian calendar 2319:The portion of the 2220:of 1931 and in the 2202:3,000 × 19 = 57,000 1879:. Where the labels 678:), has a length of 608:epact increases by 294:Cyril of Alexandria 244:(AD 325), the 214:Christian calendars 210:northern hemisphere 160:Protestant churches 11438:Surrexit a mortuis 10995:Ascension of Jesus 10467:Good Friday prayer 10364:Farewell Discourse 10124:Holy Face of Jesus 9974:Liturgical colours 9488:Holy Name of Jesus 8744:World of Astronomy 8722:Walker, George W, 8706:Walker, George W, 8320:10.1007/bf00374701 7992:Dershowitz, Nachum 7552:Spencer Jones 1922 7513:has generic name ( 7379:webdoc.sub.gwdg.de 7222:The Synodal Letter 7128:"Tables and Rules" 6434:Kekis, Theoharis. 5452: 5154:+ 1). In 1961 the 5146:= 3, or April for 4242: 3974:The expression (19 3338:Note on operations 3192:quinque coniciunt, 3131:notantur septenis. 3076:cubant in quadris. 2431:eastern Christians 2427: 2264:tidal deceleration 2234: 2153:for a discussion. 2073: 2061: 1294: 1290:Camille Flammarion 1286:Gregorian calendar 1278: 851:Gregorian calendar 336:Synod of Magh-Lene 327:while her husband 269:Hippolytus of Rome 232:to predict future 184:Easter controversy 168:Oriental Orthodoxy 93:Gregorian calendar 41: 11686: 11685: 11673:Wheel of the Year 11569: 11568: 11565: 11564: 11561: 11560: 11471: 11470: 11446: 11445: 11417:O filii et filiae 11257: 11256: 11206: 11205: 11140:in Slavic culture 11108:Scoppio del carro 11030: 11029: 10943: 10942: 10810: 10809: 10725: 10724: 10721: 10720: 10567: 10566: 10563: 10562: 10501:Harrowing of Hell 10255: 10254: 10216:Friday of Sorrows 10142: 10141: 10009: 10008: 9930: 9929: 9926: 9925: 9916:according to the 9868:Maternity of Mary 9863:Autumn Ember Days 9797:Summer Ember Days 9656: 9655: 9608:Spring Ember Days 9449:Winter Ember Days 9363: 9362: 9359: 9358: 8976:December 17 to 23 8740:Paschal Full Moon 8627:Regiomontanusbote 8545:General Astronomy 8540:Spencer Jones, H. 8520:Popular Astronomy 8452:978-1-57958-090-2 8390:978-0-19-879955-9 8357:978-0-19-954312-0 8109:Inter Gravissimas 8078:Downing, A. M. W. 8069:978-1-110-75828-9 8036:(full Latin text) 8032:Liber de Paschate 8011:978-0-521-88540-9 7971:978-2-503-51050-7 7852:978-0-19-722416-8 7808:978-0-19-214231-3 7738:978-0-85323-693-1 7695:Project Gutenberg 7664:978-0-19-954378-6 7592:, pp. 67–68. 7311:, pp. xlvii. 7087:Statutes at Large 6853:Popular Astronomy 6624:Harper, Douglas. 5860: 5859: 5433: 5432: 5420:Gregorian Easter 5136: 5135: 5123:Gregorian Easter 4549:, and in 1991 by 4533:, in 1977 by the 4531:General Astronomy 4503: 4502: 3962:and the constant 3941: 3940: 3775:are unnecessary) 3449:with the simpler 3269:according to the 3210: 3209: 3200:quindene constant 3175:speramus duobus. 2974:Dionysius Exiguus 2914: 2913: 2709:date, 1900–2099, 2515:Iberian Peninsula 2468:Inter gravissimas 2042: 2041: 2034: 2016: 1856: 1855: 1206: 1205: 843:As reforming the 841: 840: 833: 815: 542:intercalary month 536: 522: 470:without the Nisan 400:Rudolphine Tables 298:Dionysius Exiguus 200:. In the Hebrew 69:Paschal full moon 33:Ravenna Cathedral 11726: 11596: 11589: 11582: 11573: 11572: 11503:Pentecost Sunday 11491: 11490: 11482: 11481: 11266: 11265: 11123: 11122: 11041: 11040: 10856: 10855: 10821: 10820: 10745: 10744: 10736: 10735: 10583:Burning of Judas 10576: 10575: 10494: 10493: 10460:Easter Sepulchre 10399:Passion of Jesus 10319: 10318: 10266: 10265: 10183:Mothering Sunday 10069: 10068: 10060: 10059: 10036: 10029: 10022: 10013: 10012: 9999: 9998: 9953:Older calendars 9853:Nativity of Mary 9784:Pentecost Season 9538: 9537: 9459:Christmas Season 9395: 9394: 9369: 9368: 9317:Nativity of Mary 8995:Christmas Season 8988: 8932: 8931: 8906: 8905: 8887: 8880: 8873: 8864: 8863: 8808: 8725:Easter Intervals 8709:Easter Intervals 8634: 8621: 8612:Wheatly, Charles 8607: 8586: 8549: 8535: 8514: 8477: 8468: 8466: 8464: 8435: 8433: 8431: 8406: 8404: 8402: 8373: 8371: 8369: 8340: 8331: 8290: 8253: 8224: 8222: 8220: 8198: 8181: 8179: 8177: 8158: 8148: 8147: 8145: 8097: 8073: 8062:. BiblioBazaar. 8027: 8025: 8023: 7987: 7985: 7983: 7954: 7903:Vita Constantini 7893: 7891: 7889: 7868: 7866: 7864: 7835: 7833: 7831: 7812: 7791: 7754: 7752: 7750: 7721: 7719: 7717: 7698: 7692: 7690: 7668: 7646: 7645: 7643: 7605: 7599: 7593: 7587: 7581: 7580: 7561: 7555: 7549: 7543: 7537: 7531: 7525: 7519: 7518: 7512: 7508: 7506: 7498: 7491:"To find Easter" 7486: 7480: 7474: 7465: 7464: 7462: 7460: 7436: 7430: 7429: 7427: 7425: 7401: 7395: 7394: 7392: 7390: 7371: 7365: 7364:, pp. 5–10. 7359: 7348: 7342: 7327: 7321: 7312: 7306: 7300: 7294: 7288: 7282: 7276: 7270: 7264: 7258: 7252: 7251: 7250: 7248: 7216: 7210: 7204: 7198: 7197: 7195: 7193: 7184:. Archived from 7177: 7171: 7170: 7168: 7166: 7157:. Archived from 7153:Stockton, J. R. 7150: 7144: 7143: 7141: 7139: 7123: 7117: 7116: 7114: 7112: 7099: 7093: 7081: 7075: 7074: 7072: 7070: 7064: 7053: 7045: 7039: 7038: 7036: 7034: 7015: 7009: 7003: 6997: 6991: 6985: 6984: 6964: 6958: 6957: 6948: 6942: 6941: 6939: 6937: 6916: 6910: 6909: 6907: 6905: 6899: 6892: 6883: 6877: 6876: 6874: 6872: 6844: 6838: 6832: 6826: 6825: 6823: 6821: 6789: 6772: 6769: 6763: 6757: 6751: 6745: 6739: 6733: 6727: 6721: 6715: 6709: 6703: 6697: 6691: 6685: 6679: 6678:, pp. xlvi. 6673: 6667: 6666: 6660: 6652: 6642: 6636: 6635: 6621: 6615: 6594: 6593: 6587: 6581: 6571: 6565: 6563: 6562:on 30 March 2018 6550: 6544: 6538: 6532: 6526: 6515: 6514: 6512: 6510: 6499:Time and Date AS 6491: 6485: 6484: 6482: 6480: 6464: 6458: 6457: 6455: 6453: 6447: 6440: 6431: 6425: 6419: 6413: 6412:, p. xxvii. 6407: 6401: 6391: 6385: 6379: 6373: 6367: 6361: 6355: 6349: 6348: 6346: 6344: 6328: 6322: 6316: 6310: 6304: 6298: 6292: 6286: 6280: 6274: 6268: 6262: 6256: 6250: 6244: 6238: 6232: 6226: 6221: 6215: 6210: 6204: 6198: 6192: 6191:, p. xxxvi. 6186: 6180: 6174: 6168: 6163: 6157: 6151: 6145: 6144:, p. xviii. 6139: 6133: 6127: 6121: 6115: 6098: 6094: 6088: 6080: 6074: 6071: 6065: 6058: 6052: 6050: 6026: 6020: 6013: 6007: 6005: 5994: 5988: 5986: 5975: 5969: 5962: 5956: 5949: 5943: 5936: 5930: 5919: 5885:Christian Zeller 5879: 5874: 5873: 5743: 5740: 5738: 5737: 5734: 5731: 5718: 5455: 5451: 5351: 5348: 5346: 5345: 5342: 5339: 5322: 5300: 5297: 5295: 5294: 5291: 5288: 5272: 5250: 5247: 5245: 5244: 5241: 5238: 5228: 5181: 5180: 5077: 5074: 5072: 5071: 5068: 5065: 5048: 4999: 4996: 4994: 4993: 4990: 4987: 4971: 4890: 4887: 4885: 4884: 4881: 4878: 4870: 4812: 4809: 4807: 4806: 4803: 4800: 4787: 4765: 4762: 4760: 4759: 4756: 4753: 4744: 4699: 4696: 4694: 4693: 4690: 4687: 4679: 4634: 4631: 4629: 4628: 4625: 4622: 4614: 4560: 4559: 4527:H. Spencer Jones 4249: 4215: 4175:The expression 6 4159: 4140: 4133: 4122: 4087: 4055: 4043: 4023: 4000: 3681: 3678: 3676: 3675: 3672: 3669: 3661: 3635: 3632: 3630: 3629: 3626: 3623: 3614: 3587: 3584: 3582: 3581: 3578: 3575: 3567: 3463: 3462: 3455: 3448: 3440: 3439: 3436: 3434: 3433: 3430: 3427: 3419: 3415: 3413: 3412: 3409: 3406: 3372: 3371: 3316: 3307: 3300: 3294: 3278: 3271:Alfonsine Tables 3256: 3230: 3224: 3218: 3189: 3178: 3164:docte quaternis, 3150:kalendas Aprilis 3142:panditur quinis, 3120:porro quaternis, 3098:sortiunt ternos, 3032:namque dipondio. 3010:assim depromunt. 3007:octonae kalendae 2993: 2981: 2952: 2951:4 × 7 × 19 = 532 2942: 2934: 2930: 2534: 2533: 2522:Celtic monastery 2508: 2487: 2481: 2471: 2449: 2333:(decreed by the 2299: 2297: 2295: 2294: 2291: 2288: 2284: 2257:Lichtenberg 2003 2254: 2242: 2218:Nautical Almanac 2211: 2207: 2203: 2199: 2195: 2193: 2191: 2190: 2187: 2184: 2177: 2175: 2174: 2171: 2168: 2159: 2148: 2146: 2145: 2142: 2139: 2119: 2111: 2105: 2087: 2078:dominical letter 2037: 2030: 2026: 2023: 2017: 2015: 1981:"Date of Easter" 1974: 1950: 1942: 1932:ΔT (timekeeping) 1916:lunar correction 1904:solar correction 1893: 1296: 1295: 1256: 1249:dominical letter 1230: 1212: 908: 907: 884: 868: 858: 848: 836: 829: 825: 822: 816: 814: 780:"Date of Easter" 773: 749: 741: 729: 728: 697: 693: 689: 685: 681: 634: 625: 619: 615: 603: 593: 587: 581: 575: 566: 560: 532: 530: 518: 516: 515: 498: 497: 473: 469: 454:Consultation in 437: 430: 426: 362: 287: 282:The Alexandrian 254: 153: 147: 137: 58: 11734: 11733: 11729: 11728: 11727: 11725: 11724: 11723: 11689: 11688: 11687: 11682: 11609: 11600: 11570: 11557: 11539: 11467: 11442: 11426: 11393: 11326: 11298: 11274:Easter Oratorio 11253: 11237: 11202: 11176: 11112: 11026: 10981: 10939: 10928:Doubting Thomas 10914: 10845: 10806: 10783: 10779:Sunrise service 10717: 10592: 10559: 10510: 10483: 10450:Burial of Jesus 10385: 10336:Maundy Thursday 10330: 10308: 10282: 10251: 10237:Passion (music) 10220: 10188: 10138: 10090: 10049: 10040: 10010: 10005: 9993: 9922: 9901: 9873:Christ the King 9841:Transfiguration 9778: 9706: 9662:Paschal Triduum 9652: 9624: 9564: 9527: 9498:Epiphany Season 9492: 9453: 9389: 9374:Tridentine Mass 9355: 9351:Christ the King 9305:Transfiguration 9257: 9178: 9139:Paschal Triduum 9133: 9063: 9045: 8989: 8980: 8926: 8900: 8898:Catholic Church 8894:Liturgical year 8891: 8817:Wayback Machine 8806: 8754: 8749: 8732:Wayback Machine 8716:Wayback Machine 8695:Wayback Machine 8684:, Berlin, 1905. 8663:Wayback Machine 8642: 8640:Further reading 8637: 8489:(49): 109–118. 8462: 8460: 8453: 8429: 8427: 8400: 8398: 8391: 8367: 8365: 8358: 8218: 8216: 8175: 8173: 8143: 8141: 8120:Wayback Machine 8082:The Observatory 8070: 8043:Wayback Machine 8021: 8019: 8012: 7981: 7979: 7972: 7932:Wayback Machine 7917:Wayback Machine 7887: 7885: 7862: 7860: 7853: 7829: 7827: 7809: 7748: 7746: 7739: 7715: 7713: 7688: 7686: 7665: 7641: 7639: 7614: 7609: 7608: 7600: 7596: 7588: 7584: 7563: 7562: 7558: 7550: 7546: 7538: 7534: 7526: 7522: 7510: 7509: 7500: 7499: 7487: 7483: 7475: 7468: 7458: 7456: 7455:on 12 July 2012 7439:Kothe, Jochen. 7437: 7433: 7423: 7421: 7404:Kothe, Jochen. 7402: 7398: 7388: 7386: 7373: 7372: 7368: 7360: 7351: 7343: 7330: 7322: 7315: 7307: 7303: 7295: 7291: 7283: 7279: 7271: 7267: 7259: 7255: 7246: 7244: 7237: 7217: 7213: 7205: 7201: 7191: 7189: 7178: 7174: 7164: 7162: 7151: 7147: 7137: 7135: 7124: 7120: 7110: 7108: 7101: 7100: 7096: 7082: 7078: 7068: 7066: 7062: 7051: 7047: 7046: 7042: 7032: 7030: 7017: 7016: 7012: 7004: 7000: 6992: 6988: 6981: 6965: 6961: 6950: 6949: 6945: 6935: 6933: 6917: 6913: 6903: 6901: 6897: 6890: 6884: 6880: 6870: 6868: 6845: 6841: 6833: 6829: 6819: 6817: 6790: 6775: 6770: 6766: 6758: 6754: 6746: 6742: 6734: 6730: 6722: 6718: 6712:Mosshammer 2008 6710: 6706: 6698: 6694: 6686: 6682: 6674: 6670: 6654: 6653: 6643: 6639: 6622: 6618: 6612:Perseus Project 6588: 6584: 6572: 6568: 6552: 6551: 6547: 6539: 6535: 6527: 6518: 6508: 6506: 6493: 6492: 6488: 6478: 6476: 6465: 6461: 6451: 6449: 6445: 6438: 6432: 6428: 6420: 6416: 6408: 6404: 6392: 6388: 6380: 6376: 6368: 6364: 6356: 6352: 6342: 6340: 6329: 6325: 6317: 6313: 6305: 6301: 6293: 6289: 6281: 6277: 6269: 6265: 6257: 6253: 6245: 6241: 6233: 6229: 6222: 6218: 6211: 6207: 6199: 6195: 6187: 6183: 6175: 6171: 6164: 6160: 6152: 6148: 6140: 6136: 6128: 6124: 6116: 6112: 6107: 6102: 6101: 6095: 6091: 6087:, p. 813). 6081: 6077: 6072: 6068: 6059: 6055: 6027: 6023: 6019:, p. 810). 6014: 6010: 5995: 5991: 5976: 5972: 5966:local mean time 5963: 5959: 5955:, p. 794. 5950: 5946: 5937: 5933: 5927:Mosshammer 2008 5920: 5916: 5911: 5906: 5875: 5868: 5865: 5741: 5735: 5732: 5722: 5721: 5719: 5716: 5438: 5349: 5343: 5340: 5326: 5325: 5323: 5320: 5298: 5292: 5289: 5276: 5275: 5273: 5270: 5248: 5242: 5239: 5232: 5231: 5229: 5226: 5075: 5069: 5066: 5052: 5051: 5049: 5046: 4997: 4991: 4988: 4975: 4974: 4972: 4969: 4888: 4882: 4879: 4874: 4873: 4871: 4868: 4810: 4804: 4801: 4791: 4790: 4788: 4785: 4763: 4757: 4754: 4748: 4747: 4745: 4742: 4697: 4691: 4688: 4683: 4682: 4680: 4677: 4632: 4626: 4623: 4618: 4617: 4615: 4612: 4522:The Observatory 4240: 4207: 4206:The expression 4183:by some number 4168:becomes 0 and 2 4150: 4138: 4124: 4104: 4081: 4045: 4033: 4014: 3999:12 × 29.5 = 354 3998: 3679: 3673: 3670: 3665: 3664: 3662: 3659: 3633: 3627: 3624: 3618: 3617: 3615: 3612: 3585: 3579: 3576: 3571: 3570: 3568: 3565: 3450: 3442: 3437: 3431: 3428: 3423: 3422: 3420: 3417: 3410: 3407: 3402: 3401: 3399: 3390: 3379: 3369: 3368: 3340: 3335: 3237: 3203:tribus adeptis. 3187: 3176: 3172:speciem quintam 3153:exprimunt unus. 3087:septem eligunt, 3062:Ternas kalendas 3054:capiunt ternos. 3043:ambiunt quinos, 3029:nonae quaternae 2970:Dionysian cycle 2959:Victorian cycle 2950: 2940: 2932: 2929:1573 + 1 = 1574 2928: 2909: 2904: 2899: 2894: 2889: 2884: 2879: 2874: 2869: 2864: 2859: 2854: 2849: 2844: 2839: 2834: 2829: 2824: 2819: 2814: 2812: 2805: 2800: 2795: 2790: 2785: 2780: 2775: 2770: 2765: 2760: 2755: 2750: 2745: 2740: 2735: 2730: 2725: 2720: 2715: 2710: 2708: 2706: 2699: 2694: 2689: 2684: 2679: 2674: 2669: 2664: 2659: 2654: 2649: 2644: 2639: 2634: 2629: 2624: 2619: 2614: 2609: 2604: 2602: 2538: 2419: 2417:Julian calendar 2382:happens upon a 2321:tabular methods 2317: 2292: 2289: 2286: 2285: 2282: 2280: 2278: 2252: 2209: 2205: 2201: 2197: 2188: 2185: 2182: 2181: 2179: 2172: 2169: 2166: 2165: 2163: 2161: 2157: 2143: 2140: 2137: 2136: 2134: 2116:Missale Romanum 2085: 2038: 2027: 2021: 2018: 1975: 1973: 1963: 1951: 1940: 1270:Julian calendar 1210: 1201: 1196: 1191: 1186: 1181: 1176: 1171: 1166: 1161: 1156: 1151: 1146: 1141: 1136: 1131: 1126: 1121: 1116: 1111: 1106: 1104: 974: 837: 826: 820: 817: 774: 772: 762: 750: 737: 731: 721: 719:Tabular methods 695: 691: 687: 683: 679: 676:Callippic cycle 617: 609: 604: 598: 568: 561: 546:Charles Wheatly 527:épaktai hēmérai 495: 493: 481: 471: 463: 435: 428: 420: 405:Johannes Kepler 340:Synod of Whitby 265: 190: 180: 156:Catholic Church 117:Hebrew calendar 23: 12: 11: 5: 11732: 11722: 11721: 11719:Spring equinox 11716: 11714:Autumn equinox 11711: 11706: 11704:Date of Easter 11701: 11684: 11683: 11681: 11680: 11675: 11670: 11665: 11660: 11655: 11650: 11645: 11640: 11635: 11630: 11625: 11620: 11614: 11611: 11610: 11599: 11598: 11591: 11584: 11576: 11567: 11566: 11563: 11562: 11559: 11558: 11556: 11555: 11550: 11544: 11541: 11540: 11538: 11537: 11535:Trinity Sunday 11532: 11527: 11522: 11517: 11512: 11511: 11510: 11499: 11497: 11488: 11479: 11473: 11472: 11469: 11468: 11466: 11465: 11460: 11454: 11452: 11448: 11447: 11444: 11443: 11441: 11440: 11434: 11432: 11428: 11427: 11425: 11424: 11419: 11414: 11409: 11403: 11401: 11395: 11394: 11392: 11391: 11389:, BWV 145 11383: 11375: 11373:, BWV 134 11367: 11359: 11357:, BWV 158 11351: 11343: 11334: 11332: 11328: 11327: 11325: 11324: 11319: 11314: 11306: 11304: 11300: 11299: 11297: 11296: 11291: 11284: 11277: 11269: 11263: 11259: 11258: 11255: 11254: 11252: 11251: 11245: 11243: 11239: 11238: 11236: 11235: 11230: 11225: 11220: 11214: 11212: 11208: 11207: 11204: 11203: 11201: 11200: 11195: 11190: 11184: 11182: 11178: 11177: 11175: 11174: 11169: 11164: 11159: 11154: 11149: 11144: 11143: 11142: 11132: 11126: 11120: 11114: 11113: 11111: 11110: 11105: 11102: 11100:Rouketopolemos 11097: 11092: 11087: 11082: 11077: 11072: 11067: 11066: 11065: 11055: 11050: 11044: 11038: 11032: 11031: 11028: 11027: 11025: 11024: 11019: 11014: 11009: 11008: 11007: 11002: 10991: 10989: 10983: 10982: 10980: 10979: 10974: 10969: 10964: 10959: 10954: 10948: 10945: 10944: 10941: 10940: 10938: 10937: 10936: 10935: 10930: 10919: 10916: 10915: 10913: 10912: 10907: 10902: 10897: 10892: 10890:Easter Tuesday 10887: 10886: 10885: 10880: 10870: 10864: 10862: 10853: 10847: 10846: 10844: 10843: 10838: 10836:Pentecostarion 10833: 10827: 10825: 10818: 10812: 10811: 10808: 10807: 10805: 10804: 10799: 10793: 10791: 10785: 10784: 10782: 10781: 10776: 10774:Paschal Homily 10771: 10769:Road to Emmaus 10766: 10761: 10760: 10759: 10748: 10742: 10733: 10727: 10726: 10723: 10722: 10719: 10718: 10716: 10715: 10714: 10713: 10708: 10703: 10698: 10693: 10688: 10683: 10678: 10673: 10663: 10662: 10661: 10653: 10648: 10647: 10646: 10636: 10631: 10630: 10629: 10627:Ruvo di Puglia 10624: 10616: 10611: 10610: 10609: 10600: 10598: 10594: 10593: 10591: 10590: 10585: 10579: 10573: 10569: 10568: 10565: 10564: 10561: 10560: 10558: 10557: 10552: 10547: 10546: 10545: 10538: 10531: 10524:Paschal candle 10520: 10518: 10512: 10511: 10509: 10508: 10503: 10497: 10491: 10485: 10484: 10482: 10481: 10476: 10475: 10474: 10464: 10463: 10462: 10457: 10447: 10446: 10445: 10440: 10435: 10430: 10420: 10415: 10414: 10413: 10408: 10395: 10393: 10387: 10386: 10384: 10383: 10382: 10381: 10376: 10371: 10366: 10361: 10356: 10346: 10340: 10338: 10332: 10331: 10329: 10328: 10322: 10316: 10310: 10309: 10307: 10306: 10304:Holy Wednesday 10301: 10296: 10290: 10288: 10284: 10283: 10281: 10280: 10274: 10272: 10263: 10257: 10256: 10253: 10252: 10250: 10249: 10244: 10239: 10234: 10228: 10226: 10222: 10221: 10219: 10218: 10213: 10210:Lenten shrouds 10202:Passion Sunday 10198: 10196: 10190: 10189: 10187: 10186: 10179:Laetare Sunday 10176: 10171: 10166: 10161: 10156: 10150: 10148: 10144: 10143: 10140: 10139: 10137: 10136: 10131: 10126: 10121: 10116: 10114:Shrove Tuesday 10111: 10105: 10103: 10092: 10091: 10089: 10088: 10083: 10078: 10072: 10066: 10057: 10051: 10050: 10039: 10038: 10031: 10024: 10016: 10007: 10006: 10004: 10003: 9991: 9986: 9981: 9976: 9971: 9970: 9969: 9964: 9959: 9950: 9949: 9939: 9935: 9932: 9931: 9928: 9927: 9924: 9923: 9921: 9920: 9910: 9906: 9903: 9902: 9900: 9899: 9894: 9892:All Souls' Day 9889: 9888: 9887: 9875: 9870: 9865: 9860: 9855: 9850: 9843: 9838: 9833: 9831:Precious Blood 9828: 9821: 9816: 9811: 9808:Corpus Christi 9804: 9802:Trinity Sunday 9799: 9794: 9788: 9786: 9780: 9779: 9777: 9776: 9769: 9764: 9763: 9762: 9757: 9752: 9747: 9742: 9737: 9729: 9728: 9727: 9716: 9714: 9708: 9707: 9705: 9704: 9699: 9694: 9689: 9688: 9687: 9682: 9672: 9666: 9664: 9658: 9657: 9654: 9653: 9651: 9650: 9645: 9640: 9638:Passion Sunday 9634: 9632: 9626: 9625: 9623: 9622: 9617: 9610: 9605: 9604: 9603: 9598: 9593: 9588: 9580: 9574: 9572: 9566: 9565: 9563: 9562: 9557: 9552: 9546: 9544: 9535: 9529: 9528: 9526: 9525: 9520: 9515: 9510: 9502: 9500: 9494: 9493: 9491: 9490: 9485: 9478: 9477: 9476: 9463: 9461: 9455: 9454: 9452: 9451: 9446: 9444:Greater Ferias 9441: 9434: 9429: 9428: 9427: 9422: 9417: 9412: 9403: 9401: 9391: 9390: 9365: 9364: 9361: 9360: 9357: 9356: 9354: 9353: 9348: 9343: 9341:All Souls' Day 9338: 9337: 9336: 9324: 9319: 9314: 9307: 9302: 9295: 9290: 9285: 9280: 9277:Corpus Christi 9273: 9271:Trinity Sunday 9267: 9265: 9259: 9258: 9256: 9255: 9250: 9243: 9242: 9241: 9236: 9231: 9226: 9221: 9216: 9215: 9214: 9201: 9200: 9199: 9188: 9186: 9180: 9179: 9177: 9176: 9171: 9166: 9161: 9160: 9159: 9154: 9143: 9141: 9135: 9134: 9132: 9131: 9126: 9121: 9116: 9109: 9108: 9107: 9102: 9097: 9092: 9087: 9079: 9073: 9071: 9065: 9064: 9062: 9061: 9055: 9053: 9047: 9046: 9044: 9043: 9038: 9031: 9024: 9019: 9018: 9017: 9012: 8999: 8997: 8991: 8990: 8983: 8981: 8979: 8978: 8973: 8966: 8965: 8964: 8959: 8954: 8949: 8940: 8938: 8928: 8927: 8902: 8901: 8890: 8889: 8882: 8875: 8867: 8861: 8860: 8854: 8848: 8843: 8834: 8829: 8824: 8819: 8804: 8799: 8794: 8789: 8784: 8779: 8774: 8760: 8753: 8752:External links 8750: 8748: 8747: 8736: 8720: 8704: 8699:Stern, Sacha, 8697: 8685: 8676:Schwartz, E., 8674: 8667: 8651: 8643: 8641: 8638: 8636: 8635: 8622: 8608: 8587: 8561:(3): 177–188. 8550: 8536: 8515: 8478: 8469: 8451: 8436: 8407: 8389: 8374: 8356: 8341: 8332: 8306:(4): 285–320. 8291: 8265:(3): 204–224. 8254: 8225: 8199: 8187:La chronologie 8182: 8159: 8150: 8127: 8105: 8098: 8074: 8068: 8053: 8028: 8010: 7988: 7970: 7955: 7945:(6): 109–116. 7934: 7899: 7869: 7851: 7836: 7813: 7807: 7792: 7766:(5): 439−452. 7755: 7737: 7722: 7699: 7669: 7663: 7648: 7626:Paschal Canons 7615: 7613: 7610: 7607: 7606: 7604:, p. 828. 7594: 7582: 7556: 7544: 7532: 7530:, p. 225. 7520: 7481: 7466: 7431: 7420:on 9 July 2012 7396: 7366: 7349: 7328: 7313: 7301: 7299:, p. 151. 7289: 7277: 7265: 7253: 7235: 7211: 7209:, p. 178. 7199: 7172: 7145: 7118: 7094: 7076: 7040: 7010: 6998: 6986: 6979: 6959: 6943: 6920:Paucker, Georg 6911: 6878: 6839: 6837:, p. 117. 6827: 6773: 6764: 6752: 6748:Grotefend 1891 6740: 6738:, p. 114. 6728: 6716: 6704: 6692: 6680: 6668: 6637: 6616: 6582: 6566: 6545: 6533: 6516: 6486: 6459: 6426: 6414: 6402: 6386: 6374: 6362: 6360:, p. 793. 6350: 6323: 6311: 6299: 6287: 6275: 6263: 6251: 6239: 6227: 6224:Leviticus 23:5 6216: 6205: 6193: 6181: 6169: 6158: 6146: 6134: 6132:, p. 468. 6122: 6120:, p. 123. 6109: 6108: 6106: 6103: 6100: 6099: 6089: 6075: 6066: 6053: 6021: 6008: 5989: 5970: 5957: 5944: 5931: 5913: 5912: 5910: 5907: 5905: 5902: 5901: 5900: 5894: 5888: 5881: 5880: 5864: 5861: 5858: 5857: 5856:20 April 2025 5854: 5851: 5848: 5845: 5842: 5839: 5836: 5832: 5831: 5828: 5825: 5822: 5819: 5816: 5813: 5810: 5806: 5805: 5802: 5799: 5796: 5793: 5790: 5787: 5784: 5773: 5766: 5765: 5762: 5759: 5756: 5753: 5750: 5747: 5744: 5714: 5707: 5706: 5703: 5700: 5697: 5694: 5691: 5688: 5685: 5675: 5672: 5671: 5668: 5665: 5662: 5659: 5656: 5653: 5650: 5635: 5628: 5627: 5624: 5621: 5618: 5615: 5612: 5609: 5606: 5599: 5592: 5591: 5588: 5585: 5582: 5579: 5576: 5573: 5570: 5564: 5557: 5556: 5553: 5550: 5547: 5544: 5541: 5538: 5535: 5529: 5522: 5521: 5518: 5515: 5512: 5509: 5506: 5503: 5500: 5494: 5487: 5486: 5483: 5480: 5477: 5474: 5471: 5468: 5462: 5459: 5446:civil calendar 5437: 5434: 5431: 5430: 5429:20 April 2025 5427: 5426:31 March 2024 5424: 5421: 5417: 5416: 5413: 5410: 5407: 5388: 5381: 5380: 5377: 5374: 5371: 5368: 5362: 5361: 5358: 5355: 5352: 5318: 5311: 5310: 5307: 5304: 5301: 5268: 5261: 5260: 5257: 5254: 5251: 5224: 5217: 5216: 5213: 5210: 5207: 5201: 5200: 5197: 5194: 5188: 5185: 5134: 5133: 5132:20 April 2025 5130: 5129:31 March 2024 5127: 5124: 5120: 5119: 5116: 5113: 5110: 5109:+ 114) mod 31 5095: 5088: 5087: 5084: 5081: 5078: 5044: 5037: 5036: 5033: 5030: 5027: 5013: 5010: 5009: 5006: 5003: 5000: 4967: 4960: 4959: 4956: 4953: 4950: 4931: 4924: 4923: 4920: 4917: 4914: 4908: 4901: 4900: 4897: 4894: 4891: 4866: 4859: 4858: 4855: 4852: 4849: 4830: 4823: 4822: 4819: 4816: 4813: 4783: 4776: 4775: 4772: 4769: 4766: 4740: 4733: 4732: 4729: 4726: 4723: 4717: 4710: 4709: 4706: 4703: 4700: 4675: 4668: 4667: 4664: 4661: 4658: 4652: 4645: 4644: 4641: 4638: 4635: 4610: 4603: 4602: 4599: 4596: 4593: 4587: 4580: 4579: 4576: 4573: 4567: 4564: 4517:Arthur Downing 4501: 4500: 4495: 4490: 4487: 4472: 4471: 4468: 4463: 4460: 4446: 4445: 4440: 4437: 4434: 4415: 4414: 4409: 4404: 4401: 4395: 4394: 4389: 4386: 4383: 4363: 4362: 4359: 4354: 4351: 4340: 4339: 4336: 4331: 4328: 4321: 4320: 4315: 4310: 4307: 4301: 4300: 4295: 4290: 4287: 4281: 4280: 4275: 4272: 4269: 4263: 4262: 4259: 4256: 4253: 4239: 4236: 3939: 3938: 3926: 3925: 3909: 3908: 3905: 3902: 3899: 3892: 3889: 3888: 3885: 3882: 3879: 3869: 3865: 3864: 3861: 3858: 3855: 3845: 3841: 3840: 3837: 3834: 3831: 3812: 3805: 3804: 3801: 3798: 3795: 3784: 3777: 3776: 3752: 3751: 3748: 3745: 3742: 3731: 3724: 3723: 3720: 3717: 3714: 3699: 3692: 3691: 3688: 3685: 3682: 3653: 3646: 3645: 3642: 3639: 3636: 3605: 3598: 3597: 3594: 3591: 3588: 3559: 3552: 3551: 3548: 3545: 3542: 3536: 3529: 3528: 3525: 3522: 3519: 3513: 3506: 3505: 3502: 3499: 3496: 3490: 3483: 3482: 3479: 3476: 3470: 3467: 3378: 3375: 3352:multiplication 3339: 3336: 3334: 3331: 3245:vernal equinox 3236: 3233: 3228:ferial regular 3216:ferial regular 3208: 3207: 3204: 3201: 3197: 3196: 3193: 3190: 3183: 3182: 3179: 3173: 3169: 3168: 3165: 3162: 3161:Duodene namque 3158: 3157: 3154: 3151: 3147: 3146: 3143: 3140: 3136: 3135: 3132: 3129: 3128:nonae kalendae 3125: 3124: 3121: 3118: 3114: 3113: 3110: 3107: 3106:denis septenis 3103: 3102: 3099: 3096: 3095:senae kalendae 3092: 3091: 3088: 3085: 3081: 3080: 3077: 3074: 3070: 3069: 3066: 3065:titulant seni, 3063: 3059: 3058: 3055: 3052: 3048: 3047: 3044: 3041: 3037: 3036: 3033: 3030: 3026: 3025: 3022: 3019: 3015: 3014: 3011: 3008: 3004: 3003: 3000: 2997: 2984:Venerable Bede 2912: 2911: 2906: 2901: 2896: 2891: 2886: 2881: 2876: 2871: 2866: 2861: 2856: 2851: 2846: 2841: 2836: 2831: 2826: 2821: 2816: 2808: 2807: 2802: 2797: 2792: 2787: 2782: 2777: 2772: 2767: 2762: 2757: 2752: 2747: 2742: 2737: 2732: 2727: 2722: 2717: 2712: 2702: 2701: 2696: 2691: 2686: 2681: 2676: 2671: 2666: 2661: 2656: 2651: 2646: 2641: 2636: 2631: 2626: 2621: 2616: 2611: 2606: 2605:date (Julian) 2598: 2597: 2594: 2591: 2588: 2585: 2582: 2579: 2576: 2573: 2570: 2567: 2564: 2561: 2558: 2555: 2552: 2549: 2546: 2543: 2540: 2524:to accept it, 2456:Abbo of Fleury 2418: 2415: 2316: 2310: 2251:While the net 2131: 2130: 2126: 2122: 2097: 2040: 2039: 1954: 1952: 1945: 1939: 1936: 1854: 1853: 1850: 1847: 1845: 1843: 1839: 1838: 1835: 1832: 1829: 1826: 1822: 1821: 1818: 1815: 1812: 1809: 1805: 1804: 1801: 1798: 1795: 1792: 1788: 1787: 1784: 1781: 1778: 1775: 1771: 1770: 1767: 1764: 1761: 1758: 1754: 1753: 1750: 1747: 1744: 1741: 1737: 1736: 1733: 1730: 1727: 1724: 1720: 1719: 1716: 1713: 1710: 1707: 1703: 1702: 1699: 1696: 1693: 1690: 1686: 1685: 1682: 1679: 1676: 1673: 1669: 1668: 1665: 1662: 1659: 1656: 1652: 1651: 1648: 1645: 1642: 1639: 1635: 1634: 1631: 1628: 1625: 1622: 1618: 1617: 1614: 1611: 1608: 1605: 1601: 1600: 1597: 1594: 1591: 1588: 1584: 1583: 1580: 1577: 1574: 1571: 1567: 1566: 1563: 1560: 1557: 1554: 1550: 1549: 1546: 1543: 1540: 1537: 1533: 1532: 1529: 1526: 1523: 1520: 1516: 1515: 1512: 1509: 1506: 1503: 1499: 1498: 1495: 1492: 1489: 1486: 1482: 1481: 1478: 1475: 1472: 1469: 1465: 1464: 1461: 1458: 1455: 1452: 1448: 1447: 1444: 1441: 1438: 1435: 1431: 1430: 1427: 1424: 1420: 1419: 1416: 1413: 1409: 1408: 1405: 1402: 1396: 1395: 1392: 1389: 1386: 1383: 1379: 1378: 1375: 1372: 1369: 1366: 1362: 1361: 1358: 1355: 1352: 1349: 1345: 1344: 1341: 1338: 1335: 1332: 1328: 1327: 1325: 1323: 1320: 1317: 1313: 1312: 1309: 1306: 1303: 1300: 1204: 1203: 1198: 1193: 1188: 1183: 1178: 1173: 1168: 1163: 1158: 1153: 1148: 1143: 1138: 1133: 1128: 1123: 1118: 1113: 1108: 1100: 1099: 1096: 1093: 1086: 1083: 1080: 1077: 1074: 1071: 1068: 1065: 1062: 1059: 1056: 1053: 1050: 1047: 1044: 1041: 1038: 1034: 1033: 1030: 1027: 1024: 1021: 1018: 1015: 1012: 1009: 1006: 1003: 1000: 997: 994: 991: 988: 985: 982: 979: 976: 970: 969: 966: 963: 960: 957: 954: 951: 948: 945: 942: 939: 936: 933: 930: 927: 924: 921: 918: 915: 912: 839: 838: 753: 751: 744: 730: 722: 720: 717: 708:moveable feast 653: 652: 596: 573:impares menses 554: 514:ἐπακταὶ ἡμέραι 480: 477: 448:Constantinople 446:at a Synod in 384:lunar calendar 264: 261: 234:intercalations 222:lunar new year 179: 176: 142:as a "Paschal 49:date of Easter 45:moveable feast 37:Roman calendar 9: 6: 4: 3: 2: 11731: 11720: 11717: 11715: 11712: 11710: 11707: 11705: 11702: 11700: 11697: 11696: 11694: 11679: 11676: 11674: 11671: 11669: 11666: 11664: 11661: 11659: 11656: 11654: 11651: 11649: 11646: 11644: 11641: 11639: 11636: 11634: 11631: 11629: 11626: 11624: 11621: 11619: 11616: 11615: 11612: 11608: 11604: 11597: 11592: 11590: 11585: 11583: 11578: 11577: 11574: 11554: 11551: 11549: 11546: 11545: 11542: 11536: 11533: 11531: 11528: 11526: 11523: 11521: 11518: 11516: 11513: 11509: 11506: 11505: 11504: 11501: 11500: 11498: 11496: 11492: 11489: 11487: 11483: 11480: 11478: 11474: 11464: 11461: 11459: 11456: 11455: 11453: 11449: 11439: 11436: 11435: 11433: 11429: 11423: 11420: 11418: 11415: 11413: 11410: 11408: 11405: 11404: 11402: 11400: 11396: 11390: 11388: 11384: 11382: 11381:, BWV 66 11380: 11376: 11374: 11372: 11368: 11366: 11365:, BWV 31 11364: 11360: 11358: 11356: 11352: 11350: 11348: 11344: 11342: 11340: 11336: 11335: 11333: 11329: 11323: 11320: 11318: 11315: 11313: 11312: 11308: 11307: 11305: 11301: 11295: 11292: 11290: 11289: 11285: 11283: 11282: 11278: 11276: 11275: 11271: 11270: 11267: 11264: 11260: 11250: 11247: 11246: 11244: 11242:Pre-Christian 11240: 11234: 11231: 11229: 11226: 11224: 11221: 11219: 11216: 11215: 11213: 11209: 11199: 11196: 11194: 11191: 11189: 11186: 11185: 11183: 11179: 11173: 11170: 11168: 11165: 11163: 11160: 11158: 11155: 11153: 11150: 11148: 11145: 11141: 11138: 11137: 11136: 11133: 11131: 11128: 11127: 11124: 11121: 11119: 11115: 11109: 11106: 11103: 11101: 11098: 11096: 11093: 11091: 11090:Pace Egg play 11088: 11086: 11083: 11081: 11078: 11076: 11073: 11071: 11068: 11064: 11061: 11060: 11059: 11056: 11054: 11051: 11049: 11046: 11045: 11042: 11039: 11037: 11033: 11023: 11020: 11018: 11015: 11013: 11010: 11006: 11003: 11001: 10998: 10997: 10996: 10993: 10992: 10990: 10988: 10987:Ascensiontide 10984: 10978: 10977:Rogation days 10975: 10973: 10970: 10968: 10967:Mid-Pentecost 10965: 10963: 10960: 10958: 10955: 10953: 10950: 10949: 10946: 10934: 10931: 10929: 10926: 10925: 10924: 10921: 10920: 10917: 10911: 10908: 10906: 10903: 10901: 10898: 10896: 10893: 10891: 10888: 10884: 10881: 10879: 10878:Śmigus-dyngus 10876: 10875: 10874: 10873:Easter Monday 10871: 10869: 10868:Easter Sunday 10866: 10865: 10863: 10861: 10857: 10854: 10852: 10848: 10842: 10839: 10837: 10834: 10832: 10829: 10828: 10826: 10822: 10819: 10817: 10813: 10803: 10800: 10798: 10797:List of dates 10795: 10794: 10792: 10790: 10786: 10780: 10777: 10775: 10772: 10770: 10767: 10765: 10762: 10758: 10755: 10754: 10753: 10750: 10749: 10746: 10743: 10741: 10737: 10734: 10732: 10728: 10712: 10709: 10707: 10704: 10702: 10699: 10697: 10694: 10692: 10689: 10687: 10684: 10682: 10679: 10677: 10674: 10672: 10669: 10668: 10667: 10664: 10660: 10657: 10656: 10654: 10652: 10649: 10645: 10642: 10641: 10640: 10637: 10635: 10632: 10628: 10625: 10623: 10620: 10619: 10617: 10615: 10612: 10608: 10605: 10604: 10602: 10601: 10599: 10595: 10589: 10586: 10584: 10581: 10580: 10577: 10574: 10570: 10556: 10553: 10551: 10548: 10544: 10543: 10539: 10537: 10536: 10535:Lumen Christi 10532: 10530: 10527: 10526: 10525: 10522: 10521: 10519: 10517: 10513: 10507: 10504: 10502: 10499: 10498: 10495: 10492: 10490: 10489:Holy Saturday 10486: 10480: 10477: 10473: 10470: 10469: 10468: 10465: 10461: 10458: 10456: 10455:Tomb of Jesus 10453: 10452: 10451: 10448: 10444: 10441: 10439: 10436: 10434: 10431: 10429: 10426: 10425: 10424: 10421: 10419: 10416: 10412: 10409: 10407: 10406: 10402: 10401: 10400: 10397: 10396: 10394: 10392: 10388: 10380: 10377: 10375: 10372: 10370: 10367: 10365: 10362: 10360: 10357: 10355: 10352: 10351: 10350: 10347: 10345: 10342: 10341: 10339: 10337: 10333: 10327: 10324: 10323: 10320: 10317: 10315: 10311: 10305: 10302: 10300: 10297: 10295: 10292: 10291: 10289: 10285: 10279: 10276: 10275: 10273: 10271: 10267: 10264: 10262: 10258: 10248: 10245: 10243: 10242:Passion hymns 10240: 10238: 10235: 10233: 10230: 10229: 10227: 10223: 10217: 10214: 10211: 10207: 10203: 10200: 10199: 10197: 10195: 10191: 10184: 10180: 10177: 10175: 10172: 10170: 10167: 10165: 10162: 10160: 10157: 10155: 10154:Ash Wednesday 10152: 10151: 10149: 10145: 10135: 10132: 10130: 10127: 10125: 10122: 10120: 10117: 10115: 10112: 10110: 10109:Shrove Monday 10107: 10106: 10104: 10101: 10097: 10093: 10087: 10086:Quinquagesima 10084: 10082: 10079: 10077: 10074: 10073: 10070: 10067: 10065: 10061: 10058: 10056: 10052: 10048: 10044: 10037: 10032: 10030: 10025: 10023: 10018: 10017: 10014: 10002: 9997: 9992: 9990: 9987: 9985: 9982: 9980: 9977: 9975: 9972: 9968: 9965: 9963: 9960: 9958: 9955: 9954: 9952: 9951: 9947: 9944:marks the 10 9943: 9940: 9937: 9936: 9933: 9919: 9915: 9911: 9908: 9907: 9904: 9898: 9895: 9893: 9890: 9886: 9883: 9882: 9881: 9880: 9876: 9874: 9871: 9869: 9866: 9864: 9861: 9859: 9856: 9854: 9851: 9849: 9848: 9844: 9842: 9839: 9837: 9834: 9832: 9829: 9827: 9826: 9822: 9820: 9817: 9815: 9812: 9810: 9809: 9805: 9803: 9800: 9798: 9795: 9793: 9790: 9789: 9787: 9785: 9781: 9775: 9774: 9770: 9768: 9767:Rogation Days 9765: 9761: 9758: 9756: 9753: 9751: 9748: 9746: 9743: 9741: 9738: 9736: 9733: 9732: 9730: 9726: 9723: 9722: 9721: 9720:Easter Sunday 9718: 9717: 9715: 9713: 9712:Easter Season 9709: 9703: 9700: 9698: 9697:Holy Saturday 9695: 9693: 9690: 9686: 9683: 9681: 9678: 9677: 9676: 9675:Holy Thursday 9673: 9671: 9668: 9667: 9665: 9663: 9659: 9649: 9646: 9644: 9641: 9639: 9636: 9635: 9633: 9631: 9627: 9621: 9618: 9616: 9615: 9611: 9609: 9606: 9602: 9599: 9597: 9594: 9592: 9589: 9587: 9584: 9583: 9581: 9579: 9578:Ash Wednesday 9576: 9575: 9573: 9571: 9567: 9561: 9560:Quinquagesima 9558: 9556: 9553: 9551: 9548: 9547: 9545: 9543: 9539: 9536: 9534: 9530: 9524: 9521: 9519: 9516: 9514: 9511: 9509: 9508: 9504: 9503: 9501: 9499: 9495: 9489: 9486: 9484: 9483: 9479: 9475: 9474:Christmas Eve 9472: 9471: 9470: 9469: 9465: 9464: 9462: 9460: 9456: 9450: 9447: 9445: 9442: 9440: 9439: 9435: 9433: 9430: 9426: 9423: 9421: 9418: 9416: 9413: 9411: 9408: 9407: 9405: 9404: 9402: 9400: 9396: 9392: 9387: 9386:1960 Calendar 9383: 9379: 9375: 9370: 9366: 9352: 9349: 9347: 9344: 9342: 9339: 9335: 9332: 9331: 9330: 9329: 9325: 9323: 9320: 9318: 9315: 9313: 9312: 9308: 9306: 9303: 9301: 9300: 9296: 9294: 9291: 9289: 9286: 9284: 9281: 9279: 9278: 9274: 9272: 9269: 9268: 9266: 9264: 9263:Ordinary Time 9260: 9254: 9251: 9249: 9248: 9244: 9240: 9237: 9235: 9232: 9230: 9227: 9225: 9222: 9220: 9217: 9213: 9210: 9209: 9208: 9205: 9204: 9202: 9198: 9195: 9194: 9193: 9192:Easter Sunday 9190: 9189: 9187: 9185: 9184:Easter Season 9181: 9175: 9172: 9170: 9169:Holy Saturday 9167: 9165: 9162: 9158: 9155: 9153: 9150: 9149: 9148: 9147:Holy Thursday 9145: 9144: 9142: 9140: 9136: 9130: 9127: 9125: 9122: 9120: 9117: 9115: 9114: 9110: 9106: 9103: 9101: 9098: 9096: 9093: 9091: 9088: 9086: 9083: 9082: 9080: 9078: 9077:Ash Wednesday 9075: 9074: 9072: 9070: 9066: 9060: 9057: 9056: 9054: 9052: 9051:Ordinary Time 9048: 9042: 9039: 9037: 9036: 9032: 9030: 9029: 9025: 9023: 9020: 9016: 9015:Midnight Mass 9013: 9011: 9010:Christmas Eve 9008: 9007: 9006: 9005: 9001: 9000: 8998: 8996: 8992: 8987: 8977: 8974: 8972: 8971: 8967: 8963: 8960: 8958: 8955: 8953: 8950: 8948: 8945: 8944: 8942: 8941: 8939: 8937: 8933: 8929: 8924: 8923:1969 Calendar 8920: 8916: 8912: 8911:Ordinary Form 8907: 8903: 8899: 8895: 8888: 8883: 8881: 8876: 8874: 8869: 8868: 8865: 8858: 8855: 8852: 8849: 8847: 8844: 8842: 8840: 8835: 8833: 8830: 8828: 8825: 8823: 8820: 8818: 8814: 8811: 8805: 8803: 8800: 8798: 8795: 8793: 8790: 8788: 8785: 8783: 8780: 8778: 8775: 8772: 8768: 8767:De Temporibus 8764: 8761: 8759: 8756: 8755: 8745: 8741: 8737: 8734: 8733: 8729: 8726: 8721: 8718: 8717: 8713: 8710: 8705: 8702: 8698: 8696: 8692: 8689: 8686: 8683: 8679: 8675: 8672: 8668: 8665: 8664: 8660: 8657: 8652: 8649: 8645: 8644: 8632: 8628: 8623: 8619: 8618: 8613: 8609: 8605: 8601: 8597: 8593: 8588: 8584: 8580: 8576: 8572: 8568: 8564: 8560: 8556: 8551: 8547: 8546: 8541: 8537: 8533: 8529: 8525: 8521: 8516: 8512: 8508: 8504: 8500: 8496: 8492: 8488: 8484: 8479: 8475: 8470: 8458: 8454: 8448: 8444: 8443: 8437: 8425: 8421: 8417: 8416:New Scientist 8413: 8408: 8396: 8392: 8386: 8382: 8381: 8375: 8363: 8359: 8353: 8349: 8348: 8342: 8338: 8333: 8329: 8325: 8321: 8317: 8313: 8309: 8305: 8301: 8297: 8292: 8288: 8284: 8280: 8276: 8272: 8268: 8264: 8260: 8255: 8251: 8247: 8243: 8239: 8235: 8231: 8226: 8214: 8210: 8209: 8204: 8203:Lange, Ludwig 8200: 8196: 8192: 8188: 8183: 8171: 8167: 8166: 8160: 8156: 8151: 8139: 8135: 8134: 8128: 8125: 8121: 8117: 8114: 8110: 8106: 8103: 8099: 8095: 8091: 8087: 8083: 8079: 8075: 8071: 8065: 8061: 8060: 8054: 8052: 8050: 8044: 8040: 8037: 8033: 8029: 8017: 8013: 8007: 8003: 8002: 7997: 7993: 7989: 7977: 7973: 7967: 7963: 7962: 7956: 7952: 7948: 7944: 7940: 7935: 7933: 7929: 7926: 7924: 7918: 7914: 7911: 7909: 7904: 7900: 7897: 7883: 7879: 7878: 7875: 7870: 7858: 7854: 7848: 7844: 7843: 7837: 7825: 7821: 7820: 7814: 7810: 7804: 7800: 7799: 7793: 7789: 7785: 7781: 7777: 7773: 7769: 7765: 7761: 7756: 7744: 7740: 7734: 7730: 7729: 7725:Bede (1999). 7723: 7711: 7707: 7706: 7700: 7696: 7684: 7680: 7679: 7674: 7670: 7666: 7660: 7656: 7655: 7649: 7637: 7633: 7629: 7627: 7621: 7617: 7616: 7603: 7602:O'Beirne 1961 7598: 7591: 7586: 7579: 7575: 7571: 7567: 7560: 7554:, p. 73. 7553: 7548: 7541: 7536: 7529: 7524: 7516: 7511:|author= 7504: 7496: 7492: 7485: 7478: 7473: 7471: 7454: 7450: 7446: 7442: 7435: 7419: 7415: 7411: 7407: 7400: 7384: 7380: 7376: 7370: 7363: 7358: 7356: 7354: 7346: 7341: 7339: 7337: 7335: 7333: 7325: 7320: 7318: 7310: 7305: 7298: 7293: 7286: 7281: 7275:, p. 48. 7274: 7269: 7263:, p. 36. 7262: 7257: 7242: 7238: 7236:0-8028-8129-7 7232: 7228: 7224: 7223: 7215: 7208: 7203: 7187: 7183: 7176: 7160: 7156: 7149: 7133: 7129: 7122: 7106: 7105: 7098: 7092: 7091:Easter tables 7088: 7085: 7080: 7061: 7057: 7050: 7044: 7028: 7024: 7020: 7014: 7007: 7006:Swerdlow 1986 7002: 6995: 6990: 6982: 6980:0-935702-68-7 6976: 6972: 6971: 6963: 6955: 6954: 6947: 6931: 6927: 6926: 6921: 6915: 6896: 6889: 6882: 6866: 6862: 6858: 6854: 6850: 6843: 6836: 6831: 6815: 6811: 6807: 6803: 6799: 6795: 6788: 6786: 6784: 6782: 6780: 6778: 6768: 6761: 6756: 6749: 6744: 6737: 6732: 6725: 6720: 6714:, p. 76. 6713: 6708: 6701: 6696: 6689: 6684: 6677: 6672: 6664: 6658: 6650: 6649: 6641: 6633: 6632: 6627: 6620: 6613: 6609: 6608: 6603: 6602:Scott, Robert 6599: 6595: 6586: 6579: 6575: 6574:Richards 2013 6570: 6561: 6557: 6556: 6549: 6542: 6537: 6530: 6529:van Gent 2019 6525: 6523: 6521: 6504: 6500: 6496: 6490: 6474: 6470: 6463: 6444: 6437: 6430: 6423: 6418: 6411: 6406: 6399: 6395: 6390: 6383: 6378: 6371: 6370:McCarthy 1993 6366: 6359: 6354: 6338: 6334: 6327: 6321:, p. 99. 6320: 6319:Declercq 2000 6315: 6309:, p. 97. 6308: 6307:Declercq 2000 6303: 6297:, p. 80. 6296: 6295:Declercq 2000 6291: 6284: 6283:McCarthy 1996 6279: 6272: 6267: 6260: 6255: 6248: 6243: 6236: 6231: 6225: 6220: 6214: 6209: 6202: 6197: 6190: 6185: 6179:, p. xx. 6178: 6173: 6167: 6162: 6155: 6150: 6143: 6138: 6131: 6130:Peterson 2015 6126: 6119: 6114: 6110: 6093: 6086: 6079: 6070: 6063: 6057: 6051: 6049: 6043: 6039: 6035: 6031: 6025: 6018: 6012: 6004: 5999: 5993: 5985: 5980: 5974: 5967: 5961: 5954: 5948: 5941: 5935: 5928: 5924: 5918: 5914: 5898: 5895: 5892: 5889: 5886: 5883: 5882: 5878: 5872: 5867: 5855: 5852: 5849: 5847:24 April 2011 5846: 5843: 5841:19 April 2009 5840: 5838:27 April 2008 5837: 5833: 5830:7 April 2025 5829: 5827:22 April 2024 5826: 5824:18 April 2016 5823: 5821:11 April 2011 5820: 5818:22 March 2010 5817: 5814: 5812:14 April 2008 5811: 5807: 5803: 5800: 5797: 5794: 5791: 5788: 5785: 5782: 5778: 5774: 5771: 5768: 5767: 5763: 5760: 5757: 5754: 5751: 5748: 5745: 5729: 5725: 5715: 5712: 5709: 5708: 5704: 5701: 5698: 5695: 5692: 5689: 5686: 5683: 5679: 5676: 5674: 5673: 5669: 5666: 5663: 5660: 5657: 5654: 5651: 5648: 5644: 5640: 5636: 5633: 5630: 5629: 5625: 5622: 5619: 5616: 5613: 5610: 5607: 5605:+ 15) mod 30 5604: 5600: 5597: 5594: 5593: 5589: 5586: 5583: 5580: 5577: 5574: 5571: 5568: 5565: 5562: 5559: 5558: 5554: 5551: 5548: 5545: 5542: 5539: 5536: 5533: 5530: 5527: 5524: 5523: 5519: 5516: 5513: 5510: 5507: 5504: 5501: 5498: 5495: 5492: 5489: 5488: 5484: 5481: 5478: 5475: 5472: 5469: 5466: 5463: 5460: 5457: 5456: 5450: 5447: 5443: 5428: 5425: 5422: 5418: 5414: 5411: 5408: 5406:+ 19) mod 32 5405: 5401: 5397: 5393: 5389: 5386: 5382: 5367: 5364: 5363: 5359: 5356: 5353: 5337: 5333: 5329: 5319: 5316: 5312: 5308: 5305: 5302: 5287: 5283: 5279: 5269: 5266: 5263: 5262: 5258: 5255: 5252: 5236: 5225: 5222: 5219: 5218: 5206: 5203: 5202: 5198: 5195: 5192: 5189: 5186: 5183: 5182: 5179: 5177: 5173: 5169: 5165: 5161: 5157: 5156:New Scientist 5153: 5149: 5145: 5141: 5131: 5128: 5125: 5121: 5117: 5114: 5111: 5108: 5104: 5100: 5096: 5093: 5089: 5085: 5082: 5079: 5063: 5059: 5055: 5045: 5042: 5038: 5034: 5031: 5028: 5025: 5021: 5017: 5014: 5012: 5011: 5007: 5004: 5001: 4986: 4982: 4978: 4968: 4965: 4962: 4961: 4957: 4954: 4951: 4948: 4944: 4940: 4936: 4932: 4929: 4926: 4925: 4921: 4918: 4915: 4912: 4909: 4906: 4903: 4902: 4898: 4895: 4892: 4877: 4867: 4864: 4861: 4860: 4856: 4853: 4850: 4848:+ 15) mod 30 4847: 4843: 4839: 4835: 4831: 4828: 4825: 4824: 4820: 4817: 4814: 4798: 4794: 4784: 4781: 4778: 4777: 4773: 4770: 4767: 4751: 4741: 4738: 4735: 4734: 4730: 4727: 4724: 4721: 4718: 4715: 4712: 4711: 4707: 4704: 4701: 4686: 4676: 4673: 4670: 4669: 4665: 4662: 4659: 4656: 4653: 4650: 4647: 4646: 4642: 4639: 4636: 4621: 4611: 4608: 4605: 4604: 4600: 4597: 4594: 4591: 4588: 4585: 4582: 4581: 4577: 4574: 4571: 4568: 4565: 4562: 4561: 4558: 4556: 4552: 4548: 4547: 4542: 4541: 4537:, in 1977 by 4536: 4532: 4528: 4525:, in 1922 by 4524: 4523: 4518: 4515:, in 1916 by 4514: 4510: 4509: 4499: 4496: 4494: 4491: 4488: 4485: 4481: 4477: 4474: 4473: 4467: 4464: 4461: 4459: 4455: 4451: 4448: 4447: 4444: 4441: 4435: 4433: 4429: 4425: 4421: 4417: 4416: 4413: 4410: 4408: 4405: 4402: 4400: 4397: 4396: 4393: 4390: 4384: 4381: 4377: 4373: 4369: 4365: 4364: 4358: 4355: 4352: 4349: 4345: 4342: 4341: 4335: 4332: 4329: 4326: 4323: 4322: 4319: 4316: 4314: 4311: 4308: 4306: 4303: 4302: 4299: 4296: 4294: 4291: 4288: 4286: 4283: 4282: 4279: 4276: 4270: 4268: 4265: 4264: 4260: 4257: 4254: 4251: 4250: 4246: 4235: 4231: 4229: 4225: 4220: 4214: 4210: 4204: 4202: 4198: 4194: 4190: 4186: 4182: 4178: 4173: 4171: 4167: 4161: 4158: 4154: 4148: 4144: 4135: 4132: 4128: 4120: 4116: 4112: 4108: 4102: 4098: 4094: 4089: 4085: 4078: 4075: 4071: 4068:and constant 4067: 4061: 4059: 4053: 4049: 4041: 4037: 4031: 4027: 4022: 4018: 4012: 4007: 4005: 3995: 3993: 3989: 3985: 3981: 3977: 3972: 3969: 3965: 3961: 3957: 3953: 3948: 3946: 3936: 3932: 3927: 3923: 3919: 3915: 3910: 3906: 3903: 3900: 3898:+ 11) mod 30 3897: 3893: 3891: 3890: 3886: 3883: 3880: 3877: 3873: 3870: 3867: 3866: 3862: 3859: 3856: 3854: 3850: 3846: 3843: 3842: 3838: 3835: 3832: 3829: 3825: 3821: 3817: 3813: 3810: 3807: 3806: 3802: 3799: 3796: 3793: 3789: 3785: 3782: 3779: 3778: 3774: 3770: 3766: 3762: 3758: 3753: 3749: 3746: 3743: 3740: 3736: 3732: 3729: 3726: 3725: 3721: 3718: 3715: 3712: 3708: 3704: 3700: 3697: 3694: 3693: 3689: 3686: 3683: 3668: 3657: 3654: 3651: 3648: 3647: 3643: 3640: 3637: 3622: 3610: 3606: 3603: 3600: 3599: 3595: 3592: 3589: 3574: 3563: 3560: 3557: 3554: 3553: 3549: 3546: 3543: 3540: 3537: 3534: 3531: 3530: 3526: 3523: 3520: 3517: 3514: 3511: 3508: 3507: 3503: 3500: 3497: 3494: 3491: 3488: 3485: 3484: 3480: 3477: 3474: 3471: 3468: 3465: 3464: 3461: 3459: 3453: 3446: 3426: 3405: 3397: 3393: 3388: 3384: 3374: 3365: 3361: 3357: 3353: 3349: 3345: 3330: 3326: 3322: 3318: 3315: 3309: 3306: 3299: 3293: 3288: 3284: 3282: 3277: 3272: 3268: 3264: 3260: 3259:Regiomontanus 3255: 3249: 3246: 3242: 3232: 3229: 3223: 3217: 3205: 3202: 3199: 3198: 3194: 3191: 3185: 3184: 3180: 3174: 3171: 3170: 3166: 3163: 3160: 3159: 3155: 3152: 3149: 3148: 3144: 3141: 3138: 3137: 3133: 3130: 3127: 3126: 3122: 3119: 3116: 3115: 3111: 3109:donant assim. 3108: 3105: 3104: 3100: 3097: 3094: 3093: 3089: 3086: 3084:Septenas idus 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: 3009: 3006: 3005: 3001: 2999:norunt quinos 2998: 2996:Nonae Aprilis 2995: 2994: 2990: 2987: 2985: 2980: 2975: 2971: 2967: 2962: 2960: 2956: 2955:paschal cycle 2948: 2947: 2936: 2925: 2922: 2919: 2907: 2902: 2897: 2892: 2887: 2882: 2877: 2872: 2867: 2862: 2857: 2852: 2847: 2842: 2837: 2832: 2827: 2822: 2817: 2810: 2809: 2803: 2798: 2793: 2788: 2783: 2778: 2773: 2768: 2763: 2758: 2753: 2748: 2743: 2738: 2733: 2728: 2723: 2718: 2713: 2704: 2703: 2697: 2692: 2687: 2682: 2677: 2672: 2667: 2662: 2657: 2652: 2647: 2642: 2637: 2632: 2627: 2622: 2617: 2612: 2607: 2600: 2599: 2595: 2592: 2589: 2586: 2583: 2580: 2577: 2574: 2571: 2568: 2565: 2562: 2559: 2556: 2553: 2550: 2547: 2544: 2541: 2536: 2535: 2532: 2529: 2527: 2523: 2518: 2516: 2512: 2507: 2502: 2497: 2495: 2491: 2486: 2480: 2473: 2470: 2469: 2464: 2459: 2457: 2453: 2448: 2447:Massa Compoti 2443: 2442:golden number 2438: 2434: 2432: 2423: 2414: 2410: 2408: 2407:Sunday letter 2404: 2403:golden number 2400: 2395: 2393: 2389: 2385: 2381: 2378:. And if the 2377: 2373: 2369: 2365: 2361: 2357: 2356: 2351: 2346: 2344: 2343:Sunday letter 2340: 2339:golden number 2336: 2332: 2331: 2327: 2322: 2315: 2309: 2307: 2303: 2275: 2271: 2267: 2265: 2260: 2258: 2249: 2245: 2241: 2230: 2226: 2223: 2219: 2215: 2154: 2152: 2127: 2123: 2118: 2117: 2110: 2104: 2098: 2095: 2094: 2093: 2089: 2081: 2079: 2069: 2065: 2057: 2053: 2051: 2045: 2036: 2033: 2025: 2014: 2011: 2007: 2004: 2000: 1997: 1993: 1990: 1986: 1983: – 1982: 1978: 1977:Find sources: 1971: 1967: 1961: 1960: 1955:This section 1953: 1949: 1944: 1943: 1935: 1933: 1929: 1923: 1919: 1917: 1912: 1907: 1905: 1901: 1895: 1892: 1886: 1882: 1878: 1874: 1870: 1869: 1863: 1861: 1851: 1848: 1846: 1844: 1841: 1840: 1836: 1833: 1830: 1827: 1824: 1823: 1819: 1816: 1813: 1810: 1807: 1806: 1802: 1799: 1796: 1793: 1790: 1789: 1785: 1782: 1779: 1776: 1773: 1772: 1768: 1765: 1762: 1759: 1756: 1755: 1751: 1748: 1745: 1742: 1739: 1738: 1734: 1731: 1728: 1725: 1722: 1721: 1717: 1714: 1711: 1708: 1705: 1704: 1700: 1697: 1694: 1691: 1688: 1687: 1683: 1680: 1677: 1674: 1671: 1670: 1666: 1663: 1660: 1657: 1654: 1653: 1649: 1646: 1643: 1640: 1637: 1636: 1632: 1629: 1626: 1623: 1620: 1619: 1615: 1612: 1609: 1606: 1603: 1602: 1598: 1595: 1592: 1589: 1586: 1585: 1581: 1578: 1575: 1572: 1569: 1568: 1564: 1561: 1558: 1555: 1552: 1551: 1547: 1544: 1541: 1538: 1535: 1534: 1530: 1527: 1524: 1521: 1518: 1517: 1513: 1510: 1507: 1504: 1501: 1500: 1496: 1493: 1490: 1487: 1484: 1483: 1479: 1476: 1473: 1470: 1467: 1466: 1462: 1459: 1456: 1453: 1450: 1449: 1445: 1442: 1439: 1436: 1433: 1432: 1428: 1425: 1422: 1421: 1411: 1410: 1401: 1398: 1397: 1387: 1384: 1381: 1380: 1376: 1373: 1370: 1367: 1364: 1363: 1359: 1356: 1353: 1350: 1347: 1346: 1342: 1339: 1336: 1333: 1330: 1329: 1326: 1324: 1321: 1318: 1315: 1314: 1310: 1307: 1304: 1301: 1298: 1297: 1291: 1287: 1282: 1275: 1271: 1266: 1262: 1258: 1255: 1254:dies dominica 1250: 1244: 1240: 1237: 1232: 1229: 1222: 1219: 1218:Roman numeral 1214: 1199: 1194: 1189: 1184: 1179: 1174: 1169: 1164: 1159: 1154: 1149: 1144: 1139: 1134: 1129: 1124: 1119: 1114: 1109: 1102: 1101: 1097: 1094: 1092: 1091: 1087: 1084: 1081: 1078: 1075: 1072: 1069: 1066: 1063: 1060: 1057: 1054: 1051: 1048: 1045: 1042: 1039: 1036: 1035: 1031: 1028: 1025: 1022: 1019: 1016: 1013: 1010: 1007: 1004: 1001: 998: 995: 992: 989: 986: 983: 980: 977: 972: 971: 967: 964: 961: 958: 955: 952: 949: 946: 943: 940: 937: 934: 931: 928: 925: 922: 919: 916: 913: 910: 909: 906: 903: 901: 900:golden number 896: 894: 889: 886: 883: 876: 870: 867: 862: 857: 852: 847: 835: 832: 824: 813: 810: 806: 803: 799: 796: 792: 789: 785: 782: – 781: 777: 776:Find sources: 770: 766: 760: 759: 754:This section 752: 748: 743: 742: 739: 736: 716: 714: 709: 705: 700: 684:235 × 4 = 940 677: 672: 670: 666: 662: 661:Christian era 658: 650: 646: 643: 642: 641: 639: 638:golden number 633: 627: 624: 613: 601: 595: 592: 591:impares lunae 586: 580: 574: 567: 565: 559: 553: 549: 547: 543: 538: 535: 529: 528: 521: 510: 506: 500: 491: 490:synodic month 487: 476: 467: 461: 457: 453: 449: 445: 440: 432: 424: 418: 414: 410: 406: 402: 401: 395: 393: 389: 385: 379: 377: 373: 368: 366: 361: 356: 352: 348: 343: 341: 337: 332: 330: 326: 322: 316: 314: 310: 305: 303: 302:Christian Era 299: 295: 291: 286: 280: 278: 274: 270: 260: 258: 253: 247: 243: 237: 235: 231: 230:Metonic cycle 227: 223: 219: 218:intercalating 215: 211: 207: 203: 199: 195: 189: 185: 175: 173: 169: 165: 161: 157: 152: 146: 141: 136: 131: 127: 126: 120: 118: 113: 109: 104: 102: 98: 94: 90: 86: 82: 78: 77:March equinox 74: 70: 66: 62: 57: 56: 50: 46: 38: 34: 29: 25: 21: 16: 11520:Whit Tuesday 11431:Choral music 11386: 11378: 11370: 11362: 11354: 11349:, BWV 4 11346: 11341:, BWV 6 11338: 11311:Regina caeli 11309: 11286: 11279: 11272: 11157:Osterbrunnen 11104:Saitopolemos 11070:Easter seals 10801: 10788: 10764:Myrrhbearers 10540: 10533: 10516:Easter Vigil 10479:Gorzkie żale 10472:for the Jews 10405:Arma Christi 10403: 10374:Foot washing 10299:Holy Tuesday 10247:Stabat Mater 10076:Septuagesima 9989:Easter cycle 9941: 9918:Roman Ritual 9877: 9845: 9823: 9814:Sacred Heart 9806: 9771: 9702:Easter Vigil 9620:Annunciation 9614:Saint Joseph 9612: 9550:Septuagesima 9505: 9480: 9466: 9436: 9382:Latin Church 9326: 9309: 9297: 9283:Sacred Heart 9275: 9245: 9174:Easter Vigil 9119:Annunciation 9113:Saint Joseph 9111: 9033: 9026: 9002: 8968: 8919:Latin Church 8838: 8770: 8766: 8743: 8723: 8707: 8700: 8677: 8670: 8654: 8647: 8630: 8626: 8616: 8595: 8591: 8558: 8554: 8544: 8523: 8519: 8486: 8482: 8473: 8461:. Retrieved 8441: 8428:. Retrieved 8422:(228): 828. 8419: 8415: 8399:. Retrieved 8379: 8366:. Retrieved 8346: 8336: 8303: 8299: 8295: 8262: 8258: 8233: 8229: 8217:. Retrieved 8207: 8186: 8174:. Retrieved 8164: 8154: 8142:, retrieved 8132: 8123: 8108: 8101: 8085: 8081: 8058: 8048: 8047:(table with 8031: 8020:. Retrieved 8000: 7980:. Retrieved 7960: 7942: 7938: 7922: 7907: 7902: 7895: 7886:. Retrieved 7877: 7874: 7861:. Retrieved 7841: 7828:. Retrieved 7818: 7797: 7763: 7759: 7747:. Retrieved 7727: 7714:. Retrieved 7704: 7693:– via 7687:. Retrieved 7677: 7653: 7640:, retrieved 7631: 7625: 7597: 7585: 7569: 7565: 7559: 7547: 7540:Downing 1916 7535: 7528:Butcher 1877 7523: 7503:cite journal 7494: 7484: 7457:. Retrieved 7453:the original 7448: 7444: 7434: 7422:. Retrieved 7418:the original 7413: 7409: 7399: 7387:. Retrieved 7378: 7369: 7324:Nothaft 2018 7304: 7292: 7280: 7268: 7256: 7245:, retrieved 7221: 7214: 7202: 7190:. Retrieved 7186:the original 7175: 7163:. Retrieved 7159:the original 7148: 7136:. Retrieved 7121: 7109:. Retrieved 7103: 7097: 7086: 7079: 7067:. Retrieved 7055: 7043: 7031:. Retrieved 7022: 7013: 7001: 6994:de Kort 1949 6989: 6969: 6962: 6952: 6946: 6934:. Retrieved 6924: 6914: 6902:. Retrieved 6881: 6869:. Retrieved 6852: 6842: 6830: 6818:. Retrieved 6801: 6797: 6767: 6755: 6743: 6731: 6719: 6707: 6695: 6688:Clavius 1603 6683: 6671: 6647: 6640: 6629: 6619: 6605: 6585: 6569: 6560:the original 6554: 6548: 6541:Shields 1924 6536: 6507:. Retrieved 6498: 6489: 6477:. Retrieved 6462: 6450:. Retrieved 6443:the original 6429: 6417: 6405: 6398:Campus Lenis 6397: 6389: 6377: 6365: 6353: 6341:. Retrieved 6326: 6314: 6302: 6290: 6278: 6266: 6254: 6242: 6230: 6219: 6213:Exodus 12:18 6208: 6196: 6184: 6172: 6161: 6149: 6137: 6125: 6113: 6092: 6078: 6069: 6056: 6024: 6011: 5997: 5992: 5978: 5973: 5960: 5947: 5939: 5934: 5923:Bruno Krusch 5917: 5844:4 April 2010 5815:6 April 2009 5780: 5776: 5769: 5727: 5723: 5710: 5681: 5677: 5649:+ 34) mod 7 5646: 5642: 5638: 5631: 5602: 5595: 5566: 5560: 5531: 5525: 5496: 5490: 5464: 5441: 5439: 5423:2 April 1961 5403: 5399: 5395: 5391: 5384: 5365: 5335: 5331: 5327: 5314: 5285: 5281: 5277: 5264: 5234: 5220: 5204: 5190: 5175: 5171: 5167: 5163: 5159: 5155: 5151: 5147: 5143: 5139: 5137: 5126:2 April 1961 5106: 5102: 5098: 5091: 5061: 5057: 5053: 5040: 5023: 5019: 5015: 4984: 4980: 4976: 4963: 4946: 4942: 4938: 4934: 4927: 4910: 4904: 4875: 4862: 4845: 4841: 4837: 4833: 4826: 4796: 4792: 4779: 4749: 4736: 4719: 4713: 4684: 4671: 4654: 4648: 4619: 4606: 4589: 4583: 4569: 4554: 4544: 4539: 4534: 4530: 4520: 4512: 4506: 4504: 4497: 4492: 4483: 4479: 4475: 4465: 4457: 4453: 4449: 4442: 4431: 4427: 4423: 4419: 4411: 4406: 4398: 4391: 4379: 4375: 4371: 4367: 4356: 4347: 4343: 4333: 4324: 4317: 4312: 4304: 4297: 4292: 4284: 4277: 4266: 4244: 4232: 4227: 4223: 4218: 4212: 4208: 4205: 4200: 4196: 4192: 4188: 4184: 4180: 4176: 4174: 4169: 4165: 4162: 4156: 4152: 4146: 4142: 4139:52 × 7 = 364 4136: 4130: 4126: 4118: 4114: 4110: 4106: 4100: 4096: 4092: 4090: 4083: 4079: 4073: 4069: 4065: 4062: 4057: 4051: 4047: 4039: 4035: 4029: 4025: 4020: 4016: 4010: 4008: 4003: 3996: 3991: 3987: 3983: 3979: 3975: 3973: 3967: 3963: 3959: 3955: 3951: 3949: 3944: 3942: 3934: 3930: 3921: 3920:= 6, and (11 3917: 3913: 3895: 3875: 3871: 3852: 3848: 3827: 3823: 3819: 3815: 3808: 3791: 3787: 3780: 3772: 3768: 3764: 3760: 3756: 3738: 3734: 3727: 3710: 3706: 3702: 3695: 3666: 3655: 3649: 3620: 3608: 3601: 3572: 3561: 3555: 3538: 3532: 3515: 3509: 3492: 3486: 3472: 3457: 3451: 3444: 3424: 3403: 3391: 3386: 3380: 3341: 3327: 3323: 3319: 3310: 3287:Ludwig Lange 3285: 3263:conjunctions 3250: 3238: 3212: 3117:Pridie nonas 3073:quatuor dene 3051:quatuor idus 3021:etiam sexis, 3018:Idus Aprilis 2988: 2963: 2958: 2954: 2953:years. This 2944: 2937: 2926: 2923: 2915: 2530: 2519: 2498: 2474: 2460: 2441: 2439: 2435: 2428: 2411: 2396: 2391: 2387: 2383: 2379: 2375: 2371: 2367: 2363: 2359: 2353: 2347: 2328: 2318: 2313: 2276: 2272: 2268: 2261: 2250: 2246: 2235: 2178:× 100 + 1 × 2158:4 × 25 = 100 2155: 2132: 2103:saltus lunae 2090: 2082: 2074: 2062: 2046: 2043: 2028: 2019: 2009: 2002: 1995: 1988: 1976: 1964:Please help 1959:verification 1956: 1924: 1920: 1915: 1911:Julian years 1908: 1903: 1896: 1891:saltus lunae 1884: 1880: 1876: 1875:rather than 1872: 1867: 1866: 1864: 1859: 1857: 1399: 1259: 1245: 1241: 1233: 1223: 1215: 1207: 1089: 1088: 904: 897: 890: 878: 871: 842: 827: 818: 808: 801: 794: 787: 775: 763:Please help 758:verification 755: 738: 713:Thanksgiving 701: 696:76 × 6 = 456 673: 668: 664: 656: 654: 648: 644: 628: 623:saltus lunae 606: 602:, p. 44 600:Wheatly 1871 585:pares menses 569: 555: 551: 539: 526: 501: 482: 441: 433: 398: 396: 380: 369: 344: 333: 317: 306: 281: 266: 238: 191: 123: 121: 112:Roman Empire 105: 81:lunar months 54: 48: 42: 24: 15: 11643:Eschatology 11515:Whit Monday 11451:Film and TV 11118:Easter eggs 10883:Easter whip 10860:Bright Week 10802:Calculation 10651:Philippines 10597:By location 10588:Processions 10428:Lamentation 10391:Good Friday 10349:Last Supper 10344:Chrism Mass 10294:Holy Monday 10270:Palm Sunday 10206:Lenten veil 10194:Passiontide 10147:Lent proper 9942:Italic font 9692:Good Friday 9680:Chrism Mass 9643:Palm Sunday 9630:Passiontide 9513:Holy Family 9432:Rorate Mass 9164:Good Friday 9152:Chrism Mass 9124:Palm Sunday 9022:Holy Family 8857:Computuslat 8807:(in German) 8598:: 699–710. 8526:: 407–411. 8401:27 November 8219:27 November 8176:27 November 8088:: 215–219. 8034:. On-line: 8022:14 December 7982:14 December 7888:16 November 7273:Grumel 1958 7261:Grumel 1958 7089:1765, with 6936:6 September 6804:: 156–164. 6760:Ginzel 1914 6271:Turner 1895 6048:calendarium 6042:sixth canon 6000:placed the 5981:placed the 4247:submission 4082:March 22 + 3611:) div 25 = 3348:subtraction 3254:Kalendarium 3139:Pridie idus 3040:Item undene 2946:solar cycle 2943:years, the 2162:−1 × 2109:calendarium 1865:The label " 1228:calendarium 879:The Easter 651:mod 19) + 1 579:pares lunae 499:days long. 492:, which is 486:lunar cycle 409:Tycho Brahe 351:Charlemagne 325:Palm Sunday 11693:Categories 11663:Golden Age 11658:Heortology 11653:Eviternity 11638:Divination 11525:Ember days 11303:Liturgical 11211:By country 11181:By country 11135:Decorating 11036:Traditions 10701:Valladolid 10572:Traditions 10433:Epitaphios 10174:Ember days 10159:Great Lent 10134:Maslenitsa 10119:Mardi Gras 10100:Shrovetide 10081:Sexagesima 9967:Tridentine 9847:Assumption 9836:Visitation 9555:Sexagesima 9378:Roman Rite 9311:Assumption 9288:Visitation 8915:Roman Rite 8765:(Contains 8124:Explicatio 7921:Eusebius, 7896:Explicatio 7590:Meeus 1991 7362:Zeyer 2020 7345:Lange 1928 7207:Teres 1984 7069:31 January 7058:. Canada. 7056:U. Toronto 7033:31 January 7025:. Canada. 7023:U. Toronto 6166:John 19:14 6044:, and the 5904:References 5853:5 May 2024 5850:1 May 2016 5461:Expression 5187:Expression 4566:Expression 4551:Jean Meeus 4261:Remainder 3564:div 100 = 3469:Expression 3364:assignment 3333:Algorithms 3222:concurrent 2941:4 × 7 = 28 2813:full moon 2707:full moon 2603:full moon 2463:papal bull 2388:Easter-day 2370:after the 2364:Easter-day 1992:newspapers 1105:full moon 888:counted". 866:Explicatio 821:March 2019 791:newspapers 618:0 (mod 30) 434:This Nisan 392:Protestant 273:Augustalis 224:on 1 182:See also: 178:Background 140:Theophilus 85:solar year 11477:Pentecost 11317:Troparion 10952:Radonitsa 10895:Wednesday 10841:Trikirion 10681:Salamanca 10655:Portugal 10614:Guatemala 10603:Colombia 10529:Holy Fire 10506:Święconka 10261:Holy Week 10129:Fastelavn 10047:its cycle 9792:Pentecost 9773:Ascension 9648:Holy Week 9468:Christmas 9253:Pentecost 9247:Ascension 9129:Holy Week 9004:Christmas 8614:(1871) . 8583:117094612 8511:118491152 8328:120081352 8287:115765809 8250:120639320 8236:: 45–76. 8049:Argumenta 7788:121657716 7675:(1907) . 7477:Bien 2004 7375:"Gauß-CD" 7309:Bede 1999 6676:Bede 1999 6657:cite book 6422:Bede 1999 6410:Bede 1907 6394:Bede 1943 6382:Bede 1907 6259:Bede 1999 6247:Anatolius 6235:Bede 1999 6201:Bede 1999 6189:Bede 1999 6177:Bede 1999 6154:Bede 1999 6142:Bede 1999 6118:Ayto 2009 6105:Citations 4226:= 28 and 3933:= 29 and 3759:= 15 and 3267:Nuremberg 3257:of 1474, 2520:The last 2380:Full Moon 2372:Full Moon 2022:July 2020 893:full moon 704:full moon 520:translit. 460:Jerusalem 413:Uraniborg 202:lunisolar 97:algorithm 73:full moon 11668:Prophecy 11648:Eternity 11623:Calendar 11331:Cantatas 11095:Postcard 11080:Greeting 10910:Saturday 10900:Thursday 10831:Alleluia 10542:Exsultet 10354:Crotalus 10326:Tenebrae 10096:Carnival 10064:Pre-Lent 9984:Computus 9962:pre-1955 9670:Tenebrae 9582:Sundays 9542:Pre-Lent 9507:Epiphany 9406:Sundays 9203:Sundays 9081:Sundays 9035:Epiphany 8943:Sundays 8813:Archived 8728:Archived 8712:Archived 8691:Archived 8659:Archived 8542:(1922). 8463:21 March 8457:Archived 8424:Archived 8395:Archived 8362:Archived 8213:Archived 8205:(1928). 8170:Archived 8168:. Hahn. 8138:archived 8116:Archived 8039:Archived 8016:Archived 7998:(2008). 7976:Archived 7928:Archived 7913:Archived 7882:Archived 7857:Archived 7830:11 March 7824:Archived 7749:11 March 7743:Archived 7710:Archived 7689:23 March 7683:Archived 7642:13 April 7636:archived 7459:9 August 7424:9 August 7389:9 August 7383:Archived 7241:archived 7192:9 August 7165:9 August 7132:Archived 7111:9 August 7060:Archived 7027:Archived 6930:Archived 6922:(1837). 6895:Archived 6865:Archived 6814:Archived 6509:23 March 6503:Archived 6501:. 2014. 6473:Archived 6452:11 March 6337:Archived 5863:See also 5458:Variable 5184:Variable 4949:) mod 7 4657:mod 100 4563:Variable 4378:− 4374:− 4258:Quotient 4252:Dividend 3794:) mod 30 3713:) mod 30 3658:div 4 = 3466:Variable 3356:division 3344:addition 3314:computus 3305:computus 3298:computus 3292:computus 3281:New Moon 3276:computus 2979:computus 2972:, after 2811:Paschal 2705:Paschal 2601:Paschal 2506:computus 2485:computus 2479:computus 2458:in 988. 2341:and the 2326:Anglican 2306:New moon 2281:⁠3 2050:Eusebius 1292:, 1907). 1103:Paschal 882:computus 869:(1603). 856:computus 846:computus 727:computus 597:— 360:computus 342:in 664. 285:computus 252:computus 198:Passover 151:computus 145:computus 135:computus 101:Passover 83:and the 55:computus 11633:Destiny 11628:Deities 11508:Whitsun 11198:Ukraine 11188:Croatia 11172:Tossing 11162:Tapping 11147:Rolling 11012:Cenacle 10706:Viveiro 10696:Seville 10607:Popayán 10438:Encomia 10314:Triduum 9979:Ranking 9380:of the 9376:of the 8917:of the 8913:of the 8896:of the 8633:: 5–10. 8563:Bibcode 8528:Bibcode 8491:Bibcode 8308:Bibcode 8267:Bibcode 8195:4260118 8144:23 July 8090:Bibcode 7964:. Isd. 7947:Bibcode 7768:Bibcode 7612:Sources 7574:Bibcode 7138:26 June 6904:26 June 6857:Bibcode 6806:Bibcode 6626:"epact" 6610:at the 6592:ἐπακτός 6479:26 June 6343:26 June 5739:⁠ 5720:⁠ 5569:mod 19 5347:⁠ 5324:⁠ 5296:⁠ 5274:⁠ 5246:⁠ 5230:⁠ 5073:⁠ 5050:⁠ 4995:⁠ 4973:⁠ 4933:(32 + 2 4886:⁠ 4872:⁠ 4808:⁠ 4789:⁠ 4761:⁠ 4746:⁠ 4695:⁠ 4681:⁠ 4630:⁠ 4616:⁠ 4592:mod 19 4255:Divisor 3830:) mod 7 3741:) mod 7 3677:⁠ 3663:⁠ 3631:⁠ 3616:⁠ 3607:(13 + 8 3583:⁠ 3569:⁠ 3454:> 10 3435:⁠ 3421:⁠ 3414:⁠ 3400:⁠ 3251:In his 2539:number 2537:Golden 2511:Francia 2390:is the 2302:Kidinnu 2296:⁠ 2192:⁠ 2180:⁠ 2176:⁠ 2164:⁠ 2147:⁠ 2135:⁠ 2112:of the 2006:scholar 1938:Details 975:number 973:Golden 861:Clavius 805:scholar 659:in the 468:+ 2 21) 411:at his 321:Eanflæd 263:History 164:Eastern 128:(725), 11495:Octave 11486:Season 11249:Ēostre 11233:Poland 11228:Latvia 11193:Poland 11085:Parade 11053:Bonnet 11048:Basket 11017:Novena 10905:Friday 10851:Octave 10816:Season 10731:Easter 10711:Zamora 10676:Málaga 10671:Cuenca 10639:Mexico 10618:Italy 10287:Ferias 10043:Easter 9938:Legend 9909:Legend 9725:Octave 9399:Advent 9197:Octave 8936:Advent 8581: 8509: 8449: 8430:7 June 8387: 8368:9 June 8354: 8326: 8285: 8248: 8193: 8066: 8008: 7968: 7863:9 June 7849: 7805: 7786: 7735: 7716:9 June 7661: 7497:: 487. 7495:Nature 7247:4 July 7233: 6977: 6871:17 May 6820:17 May 6040:, and 6038:fourth 6034:second 6003:saltus 5984:saltus 5684:+ 114 5534:mod 7 5499:mod 4 5467:= 2008 5193:= 1961 5160:Nature 5026:+ 114 4913:mod 4 4722:mod 4 4572:= 1961 4508:Nature 4418:32 + 2 4245:Nature 3916:= 28, 3701:(15 − 3619:13 + 8 3495:mod 19 3475:= 1777 3362:, and 3360:modulo 2910:March 2806:April 2700:April 2392:Sunday 2384:Sunday 2368:Sunday 2129:apart. 2008: 2001: 1994: 1987: 1979: 1348:xxviii 1211: 1202:March 1037:Epact 807: 800: 793: 786: 778: 692: 688: 665:before 632:saltus 616:, not 523: 505:epacts 494:29.530 479:Theory 472: 456:Aleppo 436: 429: 355:Alcuin 89:Julian 65:Easter 47:, the 11458:Films 11399:Hymns 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