The Gregorian calendar was initially decreed by Pope Gregory XIII on 24 February 1582.
No, "Gregorian calendar" is not capitalized unless it is at the beginning of a sentence.
Authorised by Pope Gregory
Pope Gregory XIII
gregorian
It is named after Pope Gregory XIII, though he did not invent it.
The Gregorian calendar was introduce by Pope Gregory XIII in 1582 to correct the discrepancies that had built up with the Julian calendar. Eleven days were removed.
The Gregorian calendar was an adaptation of a calendar proposed by Aloysius Lilius in 1582. However, the calendar is named after Pope Gregory XIII who introduced this calendar by a papal bull. It was a reform to the Julian calendar.
The calendar commonly used in modern America is the Gregorian calendar. It was introduced by Pope Gregory XIII in 1582 and is a modification of the Julian calendar. The Gregorian calendar is widely used worldwide and is the calendar system officially followed by most countries, including the United States.
A calendar introduced by Julius Caesar in 45 BCE, which was later corrected by Pope Gregory XIII in the Gregorian Calendar.
It is called the Gregorian calendar after Pope Gregory XIII and was introduced in 1582
The Gregorian calendar was named after the man who first introduced it, Pope Gregory XIII on February 1582. It is a internationally accepted civil calendar. The two other names that the calendar is called is the Western Calendar and the Christian Calendar.
The Gregorian calender is named after Pope Gregory XIII who made its use official in a papal decree in 1582.