Today, George Washington's birthday, is a federal holiday in the U.S. It is celebrated in honor of not just Washington but other American Presidents as well.
(Which gives rise to the question: do you spell it "Presidents' Day" or "Presidents Day" or "President's Day"? Even Wikipedia isn't sure. "Presidents' Day makes most sense to me, so I'm going with that: but if you prefer an alternate spelling, do comment below and tell me why.)
Spelling dilemmas aside, I hope you enjoy the holiday. Kelly tells me she is going to take advantage of the sales today: I hope you have similarly exciting plans!