Changes

The '''Julian calendar''', named after [[Julius Caesar]], was instituted in 45 BC. It has twelve months in each year and a leap day every four years. Thus a Julian year is exactly 365.25 days. The astronomical year is slightly shorter, 365.242 days, causing the Julian calendar to be slight out of sync with the seasons. This defect is corrected in the [[Gregorian calendar]], a modified version of the Julian calendar created in 1582. The Julian calendar used in the British colonies until 1752, when the British switched to the Gregorian calendar. George Washington was born in February 11, 1731 by the Julian calendar, but on February 22, 1732 according to the Gregorian calendar. Russia used the Julian calendar until 1918.

The '''Julian calendar''', named after [[Julius Caesar]], was instituted in 45 BC. It has twelve months in each year and a leap day every four years. Thus a Julian year is exactly 365.25 days. The astronomical year is slightly shorter, 365.242 days, causing the Julian calendar to be slight out of sync with the seasons. This defect is corrected in the [[Gregorian calendar]], a modified version of the Julian calendar created in 1582. The Julian calendar was used in the British colonies until 1752, when they switched to the Gregorian calendar. George Washington was born in February 11, 1731 by the Julian calendar, but on February 22, 1732 according to the Gregorian calendar. Russia used the Julian calendar until 1918.

==Months==

==Months==