istoryworld
Events relating to the calendar
Sirius rises in this year on the first day of the first Egyptian month - a rare event which possibly launches the Egyptian calendar system
The Maya introduce a calendar which has a cycle of fifty-two years, known as the Calendar Round
Julius Caesar's new calendar is introduced, at a time when its predecessor has become out of step with the seasons by three months
The Jewish calendar, deriving originally from the example of Babylon, is given its lasting form
The new and more accurate Gregorian calendar is introduced by Gregory XIII in the papal states
Britain is one of the last nations to adjust to the more accurate Gregorian calendar, causing a suspicious public to fear they have been robbed of eleven days
The French Convention adopts imaginative names for the months in their new republican calendar
The Constitution of the Year XII (the twelfth year of the French Revolutionary Calendar) makes Napoleon First Consul for life