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  • admin posted an update in the group Group logo of On This Day – HistoryOn This Day – History 3 months, 4 weeks ago

    On this day — February 24, 1582
    Pope Gregory XIII reforms the calendar
    The Gregorian calendar is introduced as Pope Gregory reworks the Julian calendar, unyoking Easter from the spring equinox, changing leap year protocol, and subtracting 10 minutes and 48 seconds a year.