At this time, some people wanted to include Lincoln in the celebration (birthday = February 12), since many states were already celebrating his birthday on a separate day, although it was never a federal holiday. Some people think Nixon changed the day to "President's Day," but even today, the holiday technically only celebrates Washington's birthday.
President's Day also brings yearly rankings of our past leaders. Here's C-SPAN's take on the whole thing:
Want to learn more about the presidents? The Official White House website has a nice slideshow of the Presidents, or you can learn this rap:
I like how they sampled "Hail to the Chief." I like this verse the best!
No presidents are from Wisconsin
Not Truman, Eisenhower, Kennedy, or Johnson
We’re getting near the end, but it’s not getting harder
It’s Nixon, Ford, then Jimmy Carter
And of course, no celebration would be complete without a video of morphing presidents. Kinda creepy, kinda cool....