Edison shows off his phonograph, atom bomb testing heads underground, a chimpanzee orbits the Earth, the Pong craze begins, and the world loses another Beatle, all on this day.
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Axel Tregoning/Wikimedia Commons
1972: Atari announces the release of "Pong," a simulated table tennis game. The game quickly became the first commercially successful video game, leading to the start of the video game industry.