Search results
We did not find results for: who invented the gregorian calendar.
Check spelling or type a new query.
We did not find results for: who invented the gregorian calendar.
Check spelling or type a new query.
The Gregorian calendar is the calendar used in most parts of the world. It went into effect in October 1582 following the papal bull issued by Pope Gregory XIII, which introduced it as a modification of, and replacement for, the Julian calendar. The principal change was to space leap years differently so as to make the average calendar year 365.2425 days long, more closely approximating the 365.24... Wikipedia