October 15, 1582 (438 years ago): Adoption of the Gregorian calendar begins, eventually leading to near-universal adoption.
#backintime #1500s #gregoriancalendar #history
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October 15, 1582 (438 years ago): Adoption of the Gregorian calendar begins, eventually leading to near-universal adoption.
#backintime #1500s #gregoriancalendar #history
