Tetris Turns 25

Tetris was created on June 6th 1984 by Alexander Pajitnov, a programmer at the Moscow Academy of Sciences who worked on the game in his spare time. Although it was originally released on the PC, Tetris gained popularity on the Nintendo Game Boy where it sold around 35 million copies. Brain scans of Tetris players show the game trains people to use their brains more efficiently. Today Tetris can be downloaded or bought and played on most consoles and mobile devices.