meme via gramarye1971 which seems particularly apt:

Go over to Wikipedia and enter your birth date and then pick 3 events, 2 births, and 1 holiday that occurred on the day of your birthday.

Events

1588 - Anglo-Spanish War: Battle of Gravelines - The naval engagement ends, thus ending the Spanish Armada's attempt to invade England.
1786 - Mont Blanc on the French- Italian border is climbed for the first time by Jacques Balmat and Dr Michel-Gabriel Paccard.
1963 - Great Train Robbery: In England, a gang of 15 train robbers steal 2.6 million pounds in bank notes.

Births

1902 - Paul Dirac
1931 - Sir Roger Penrose FTW

Holiday

It's a thin day for holidays but it is the feast day of Saint Hormisdas who is best remembered fo bringing an end to the Acacian Schism.