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Pope Gregory XIII ordered ten days deleted from the calendar. October 4th was fo
1582 Event

October 15

Gregorian Calendar Implemented: The Pope Skips 10 Days

Pope Gregory XIII ordered ten days deleted from the calendar. October 4th was followed by October 15th. Italy, Poland, Portugal, and Spain complied immediately. The Julian calendar had drifted ten days from the solar year since Caesar implemented it. Easter was arriving earlier each century. Gregory fixed it with erasure. Protestant countries refused for 170 years, preferring astronomical error to papal obedience. Britain finally switched in 1752.

October 15, 1582

444 years ago

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