There are actually two dates that share the title of Rosa Parks Day. The first is February 4, the birthday of the Alabama seamstress who became a civil rights icon. The second is December 1, the day she refused to give up her seat.
Rosa Parks was not the first person to resist the Jim Crow laws, but her arrest sparked a year long bus boycott in many major cities, which only ended when the buses were desegregated according to the 1956 ruling from the U.S. Supreme Court. This page on the History Channel’s website has loads of information about Rosa Parks, the Montgomery Bus Boycott, and the civil rights movement in general.
There are plenty of places throughout the country where you can learn about these things as well. Personally, I think the best way to learn about it is to talk to someone who remembers.
However, if you’re near Detroit, you can also have a lot of fun at The Henry Ford, where you can listen to an interview of Rosa Parks while sitting in the bus where it all started. It’s an expensive museum, but, if you’ve got the time, it’s worth it.
“Then you will know the truth, and the truth will set you free.”