At least I think it's called the Jullian calendar.
2007-01-31 10:07:49 · 2 answers · asked by aqwaters 3 in Science & Mathematics ➔ Other - Science
The Julian calendar has leap days every four years. There are no special rules for every 100 or 400 years.
Almost all Orthodox Christian churches celebrate Christmas and Easter according to the Julian calendar.
The dates from 1 March 1900 to 28 February 2100 (Gregorian, or common use calendar) correspond to 17 February 1900 to 15 February 2100 on the Julian Calendar. The difference is 13 days, so 14 Feb (Gregorian) is the same as 1 Feb (Julian).
When Pope Gregory XIII decreed the new (Gregorian) calendar in 1582, the Orthodox Christian churches decided to keep using the old Julian calendar.
2007-01-31 10:37:24 · answer #1 · answered by morningfoxnorth 6 · 2⤊ 0⤋
The Julian calendar is really complex, I would look it up online, it is too much to describe here.
http://www.geocities.com/calendopaedia/julian.htm
This site should get you started.
2007-01-31 10:35:39 · answer #2 · answered by Huggles-the-wise 5 · 1⤊ 0⤋