John Brallier became the first openly paid professional American Football player when he was paid $10 to play a match.
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The online auction website eBay was founded by Pierre Omidyar.
Microsoft purchased Nokia for $7.2 billion.
The Viking 2 became the second spacecraft to land on Mars.
John Lennon and Yoko Ono left the UK and headed to New York City, US.
Sweden switched from driving on the left side of the road to the right side.