Air conditioning is born, the "happiest place on Earth" opens up, and the Beatles get animated, all on this day.
2011: Casey Anthony is released from jail in Orange County, Florida, 17 days after being cleared of murdering her daughter Caylee.
The following five celebrity urban legends will likely live on long into the future, despite the fact that none of them is remotely true.
Kevin Winter/Getty Images
If you've got a birthday in May, check out which celebrities may be sharing your special day.