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August 1, 2025
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oct 14, 1582 - Pope Gregory 8th and Aloysius Lilius created Gregorian Calendar

Description:

The Gregorian calendar is a solar calendar, consisting of 12 months with an average of 365 days per year, with every leap year divisible by 400 years.

Added to timeline:

9 Dec 2019
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Date:

oct 14, 1582
Now
~ 442 years ago