The Gregorian calendar — used by most of the world — was introduced to fix errors in the Julian calendar mostly having to do with leap years.
Source: https://www.livescience.com/45768-gregorian-calendar.html
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The Gregorian calendar — used by most of the world — was introduced to fix errors in the Julian calendar mostly having to do with leap years.
Source: https://www.livescience.com/45768-gregorian-calendar.html