bn:00696103n
Noun Concept
Categories: Obsolete calendars, Book of Jubilees, 3rd-millennium BC establishments, Amorites, Articles with short description
EN
pentecontad calendar  shappatum
EN
The pentecontad calendar is an agricultural calendar system thought to be of Amorite origin in which the year is broken down into seven periods of fifty days, with an annual supplement of fifteen or sixteen days. Wikipedia
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EN
The pentecontad calendar is an agricultural calendar system thought to be of Amorite origin in which the year is broken down into seven periods of fifty days, with an annual supplement of fifteen or sixteen days. Wikipedia
Mesopotamian calendar, whose year consists of 7 periods of 50 days, with an annual supplement of 15 or 16 days Wikidata
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