While the holiday is sometimes misunderstood as a celebration of the lives and birthdays of all U.S. presidents, the holiday was originally called Washington's Birthday and was the first federal ...

But this holiday doesn’t commemorate all presidents ... that Washington’s true birthday had become a matter of “conjecture” after the switch to the Gregorian calendar.

Britain and all its colonies adopted the Gregorian calendar, which moved his birth date to Feb. 22, 1732, according to the National Archives. The shift from Washington’s Birthday to Presidents ...

President's Day, the next federal holiday on the calendar, is rapidly approaching ... Presidents Day falls on Monday, Feb. 17 ...

The calendar says Monday is Presidents Day ... and Abraham Lincoln – whose Feb. 12 birthday also used to be a federal holiday – or all presidents, he said. In drafting his bill, which gives ...