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TIL in 1992 a Russian submarine attempted to surface, and ran directly into the bottom of the hull of an American submarine, who was spying on their ports.

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Lkv19 TIL Guinness brewery signed a 9000 year lease on their brewery
QZ4E TIL that in 2001 Argentina had 5 presidents in 2 weeks.
e0VKJ TIL that the smell of the air after a storm is caused by Geosmin: A chemical released by dead soil bacteria. Humans are hyper sensitive to it, capable of detecting at a concentration of 5 parts per trillion. It's theorised in our evolutionary past this helped us seek out water.
dPbr TIL that Joseph Weizenbaum, one of the founding fathers of Artificial Intelligence, later became one of it’s leading critics when he found his secretary getting very emotionally involved with ELIZA, a chatbot that he himself programmed.
e0eEJ TIL in 2015 A man had his sentence doubled after an appeal judge decided his original 4 year sentence received from starting a toilet fire on a commercial aircraft from a cigarette was too lenient