Gregorian-calendar meaning

grĭ-gôr'ē-ən
The solar calendar used in most of the world, sponsored by Pope Gregory XIII in 1582 as a corrected version of the Julian calendar.
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A corrected form of the Julian calendar, introduced by Pope Gregory XIII in 1582 and now used in most countries of the world: it provides for an ordinary year of 365 days and a leap year of 366 days every fourth, even year, exclusive of the final year of a century, which is a leap year only if exactly divisible by 400
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The calendar currently used in the western world. It replaced the Julian calendar and was devised to halt the slow drift of the vernal equinox towards earlier in the year.
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Origin of gregorian-calendar

  • Named after Pope Gregory XIII who decreed it should be used.
    From Wiktionary