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 Viking 2 became the second spacecraft to land on Mars.
The Sun newspaper was published for the first time in New York City.
MacKenzie Scott, Jeff Bezos' ex-wife, became the world's richest woman with a net worth of $68 billion.
The United States and Great Britain signed the Treaty of Paris, ending the Revolutionary war.
Adolf Hitler made plans to invade Britain starting on September 21, 1940.
