Enoch calendar

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The Enoch calendar is an ancient calendar described in the pseudepigraphal Book of Enoch. It divided the year into four seasons of exactly 13 weeks each. Each such season consisted of two 30-day months followed by one 31-day month, and the 31st day ended the season, so that Enoch's Year consisted of exactly 364 days.

There is some evidence that the group whose writings were found at Qumran used a variation of the Enoch calendar (see Qumran calendar).

The Enoch calendar was purportedly given to Enoch by the angel Uriel. Four named days, inserted as the 31st day of every third month, were named instead of numbered, which "placed them outside the numbering". The Book of Enoch gives the count of 2,912 days for 8 years, which divides out to exactly 364 days per year. This specifically excludes any periodic intercalations.

Calendar expert John Pratt wrote that "The Enoch calendar has been criticized as hopelessly primitive because, with only 364 days, it would get out of sync with the seasons so quickly: in only 25 years the seasons would arrive an entire month early. Such a gross discrepancy, however, merely indicates that the method of intercalation has been omitted."[1] Pratt pointed out that by adding an extra week at the end of every seventh year (or Sabbatical year), and then adding two extra weeks to every fourth Sabbatical year (or every 28 years), the calendar could be as accurate as the Julian calendar.

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  1. ^ John Pratt, Review of Mapping Time:, The Calendar and Its History, by E. G. Richards, American Mathematical Monthly, volume 107, number 1, January, 2000

Enoch 72:1 Book of Luminaries.

Eno. 72: 6, 11, 13, 16, 17, 19, 22, 23, 25, 27, 29, 31.

Eno. 75:1-3. Numbers were their naming convention; counting was the mathematics associated with computations.

Exodus 10:21.

See the various writings of Julian Morgenstern, James C. VanderKam and others. It is clear in Morgenstern's "The Calendar Of The Book Of Jubilees, Its Origin And Its Character"; Vetus Testamentum, (5)1 (Jan. 1955) pp. 34-76 that he is unclear of the structural differences between the Pentecontad and the Jubilee models, however.

"Cycle of Priestly Courses from Calendrical Documents 4Q320 and 4Q321." Originally retrieved 12/15/2000 and updated on 02/02/2014 from http://www.haderech.info/DSS/Calendar/QumranCalendar.pdf

"Sabbatical Years and the Year of Jubilee". Sidney B. Hoenig; The Jewish Quarterly Review, New Series, Vol. 59, No. 3 (Jan., 1969), pp. 222-236.

"A Possible Method of Intercalation for the Calendar of the Book of Jubilees". E. R. Leach; Vetus Testamentum, Vol. 7, Fasc. 4 (Oct., 1957), pp. 392-397.

"Jubilee Calendar Rescued from the Flood Narrative". S. Najm & Ph. Guillaume. Retrieved 6/22/2008 from http://www.arts.ualberta.ca/JHS/Articles/Article_31.htm

"Sabbatical, Jubilee, and the Temple of Solomon." L. W. Casperson. Vetus Testamentum, Vol. 53, No. 3, 2003, pp. 283-296(14).

"Calendars of the Dead_sea-Scroll Sect". Edward L. Cohen; CUBO Mathematica Educacional; Vol. 52 No. 2, (1-16). Junio 2003.

Biblical Calendars. J. van Goudoever. Leiden, E. J. Brill, 1959.

"Tracing the Origin of the Sabbatical Calendar in the Priestly Narrative (Genesis 1 to Joshua 5)". Philippe Guillaume. Retrieved 6/22/2008 from http://www.arts.ualberta.ca/JHS/Articles/article_43.htm.

"Studies in the Hebrew Calendar: (Interpretation of a Difficult Passage in the Palestinian Talmud)". Solomon Gandz. Proceedings of the American Academy for Jewish Research, Vol. 17, (1947-1948), pp. 9-17.

"Chronology of the Account of the Flood in P.--A Contribution to the History of the Jewish Calendar. Benjamin Wisner Bacon. Hebraica, Vol. 8, No. 1/2 (Oct., 1891 - Jan., 1892), pp. 79-88.

"The Calendar of the Book of Jubilees, Its Origin and its Character." Julian Morgenstern. Vetus Testamentum, Vol. 5, Fasc. 1 (Jan., 1955) pp. 34-76.

"The Judean Calendar during the Second Commonwealth and the Scrolls." Solomon Zeitlin. The Jewish Quarterly Review. New Series, Vol. 57, No. 1 (Jul., 1966), pp. 28-45.

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