The Islamic calendar is based on cycles of the moon and is used predominantly by Muslims around the world. It helps us ...

Asteroid named after pope behind Gregorian calendar reform ROME (AP) — Pope Gregory XIII, the 16th century pontiff responsible for the Gregorian calendar, now has another celestial claim to fame.

The Gregorian calendar has 12 months, just like its predecessor, the Julian calendar. The months are January, February, March, April, May, June, July, August, September, October, November, and ...

Under the Gregorian calendar, the scheduling of the days for holidays, sporting events, and school schedules—to name but a few—must be redone each year. What a waste of time and money.

Tuesday’s Google Doodle celebrates the 434th anniversary of the Gregorian calendar, which was introduced on Oct. 4, 1582, by Pope Gregory XIII. The new calendar, introduced during the ...

ROME (AP) — Pope Gregory XIII, the 16th century pontiff responsible for what is today known as the Gregorian calendar, now has another, celestial claim to fame. A working group of the ...