Did you know that "Washington's Birthday" is the official name for President's Day? During the month of February the birthday of two of our greatest President's takes place. Both George Washington who was born on Feb. 22nd and Abraham Lincoln born on Feb. 12th.
However, Washington's birthday has been publicly celebrated since he was in office, before Abraham Lincoln was even born. Much of the debate over the name of the holiday springs from the fact that state's can follow their own holidays how they see fit and many of them chose to also honor Lincoln, calling the celebration President's Day.
In 1968 Congress voted down the motion to make President's Day the official term for the holiday, but a resurgence of the term by advertisers in the 1980s solidified the name in American culture.
But on the books, it's still officially known as Washington's Birthday.