Pacman is celebrating its 30th anniversary. According to Pacmanmuseum.com:
When Toru Iwatani hungrily stared into his pizza box, he removed a slice of pizza and the idea for one of the greatest arcade games was born. At 27 years, the Japanese game designer came up with the idea for Pac-Man - a game that became legend, and spawned numerous sequels and clones.
The rest of the article is amusing if you're into Pacman, like the reason why it was changed from Puckman.