The Islamic calendar is lunar, which means it's based on the phases of the moon. It is either 354 or 355 days long, and began in the year 622 CE when the Prophet Muhammad migrated from Mecca to...
No. Although there have been a lot of documentaries on many subjects including the Mayan calendar, no one has yet made a documentary on the Gregorian calendar, one of the most used documents on the...
The Gregorian Calendar is an almost identical improvement on the Julian Calendar. The names of the months and the number of days per month are the same. The only difference is that the Gregorian...