George Washington's birthday was an unofficial observance for most of the 1800s; it became a federal holiday in 1879. The holiday initially applied only to the District of Columbia, but in 1885 it was expanded to the whole country.
The move from a Feb. 22 holiday marking the birthday of America's first president to celebrating Presidents Day dates to 1968, when Congress passed the Uniform Monday Holiday Act to shift the celebration of several federal holidays from specific dates to a series of predetermined Mondays. The act, which took effect in 1971, also included a provision to combine the celebration of Washington's birthday with Abraham Lincoln's (on Feb. 12).
By the mid-1980s, Washington's Birthday was known to many as Presidents Day. In the early 2000s, as many as half the 50 states had changed the holiday's name to Presidents Day.
Today, Presidents Day is seen as a day to recognize all of America's chief executives. How well do you know our commanders in chief?