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Gregorian calendar
- Also called:
- New Style calendar
- Key People:
- Gregory XIII
- On the Web:
- History Today - The Gregorian Calendar Adopted in England (Dec. 19, 2024)
Top Questions
What is the Gregorian calendar?
What is the Gregorian calendar?
Why was the Gregorian calendar created?
Why was the Gregorian calendar created?
When was the Gregorian calendar adopted?
When was the Gregorian calendar adopted?
News •
In a calendar rarity, Hanukkah starts this year on Christmas Day
• Dec. 21, 2024, 11:17 AM ET (AP)
Gregorian calendar, solar dating system now in general use. It was proclaimed in 1582 by Pope Gregory XIII as a reform of the Julian calendar. By the Julian reckoning, the solar year comprised 365 1/4 days, and the intercalation of a “leap day” every four years was intended to maintain correspondence between the calendar and the seasons. A slight inaccuracy in the measurement (the solar year comprising more precisely 365 days, 5 hours, 48 minutes, 45.25 seconds) caused the calendar dates of the seasons to regress almost one day per century. Although this regression had amounted to 14 days ...(100 of 322 words)