Julian period


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Related to Julian period: Modified Julian date, Julian Day Numbers
a chronological period of 7,980 years, combining the solar, lunar, and indiction cycles (28 x 19 x 15 = 7,980), being reckoned from the year 4713 B. C., when the first years of these several cycles would coincide, so that if any year of the period be divided by 28, 19, or 15, the remainder will be the year of the corresponding cycle. The Julian period was proposed by Scaliger, to remove or avoid ambiguities in chronological dates, and was so named because composed of Julian years.

See also: Julian

References in periodicals archive ?
Kelly Beatty replies: The use of Julian days (or dates) is tied to the Julian Period, proposed by Joseph Scaliger in 1583 as a means to tie together three different calendrical cycles.
Many years ago I was a Visiting Fellow at Oxford University in England researching the origins of the Julian Period, on which the Julian Day count is based.