George Washington born on February 22, 1732 in t he new style of calendar (which went into effect in 1752) or February 11, 1731 in the old style. He died on December 14, 1799.
Contemporary records, which used the Julian calendar and the Annunciation Style of enumerating years, recorded his birth as February 11, 1731. The provisions of the British Calendar (New Style) Act 1750, implemented in 1752, altered the official British dating method to the Gregorian calendar with the start of the year on January 1 (it had been March 25). These changes resulted in dates being moved forward 11 days, and for those between January 1 and March 25, an advance of one year.