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The Julian calendar, proposed by Julius Caesar in AUC 708 (46 BC), was a reform of the Roman calendar. It took effect on 1 January AUC 709 (45 BC), by edict. It was designed with the aid of Greek mathematicians and astronomers such as Sosigenes of Alexandria. The calendar became the predominant calendar in … See more
Motivation
The ordinary year in the previous Roman calendar consisted of 12 months, for a total of 355 days. In addition, a 27- or 28-day intercalary month, the Mensis Intercalaris, … See moreAlthough the new calendar was much simpler than the pre-Julian calendar, the pontifices initially added a leap day every three years, instead of every four. There are accounts of this … See more
The principal method used by the Romans to identify a year for dating purposes was to name it after the two consuls who took office in it, the eponymous period in question being the … See more
The Julian calendar has been replaced as the civil calendar by the Gregorian calendar in all countries which officially used it. Turkey switched (for … See more
The Julian reform did not immediately cause the names of any months to be changed. The old intercalary month was abolished and … See more
The Roman calendar began the year on 1 January, and this remained the start of the year after the Julian reform. However, even after local calendars were aligned to the Julian calendar, … See more
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Julian Calendar from Wikipedia, the Free Encyclopedia - DocsLib
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