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mar 15, 1582 - 1582 ACE: Gregorian calendar introduced

Description:

Pope Gregory XIII introduces the Gregorian calendar. This calendar is the fixed version of the Julian calendar. The work was mostly Roger Bacon's. Most people use this calendar.

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21/6 Astronomy timeline project

ByHannah Louise Wong-Ming
2 Jul 2019
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Date:

mar 15, 1582
Now
~ 444 years ago

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