julian period

The Sailor's Word-Book

A period of 7980 years, dating from B.C. 4713; being the product of the numbers 15, 19, and 28 multiplied into each other, they being respectively the lengths, in Julian years, of the Indiction, Metonic Cycle, and Solar Cycle. The Julian year was a period of 365-1/4 days, which was adopted as the length of the year after the reformation of the calendar by Julius Cæsar.

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