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TIL The Titanic had an older sister ship called "Olympic", which became the only civilian ship to sink an enemy warship during WWI, when it turned around and rammed a German submarine attempting to attack it. The sub was gashed open by The Olympic's propellor.

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R5kPj TIL that Hisashi Ouchi’s life was barely kept alive for 83 days after a high radiation dose as his skin peeled off and organs failed
5YWwP TIL the British biscuit is an American cookie, an American cookie is a British cookie, and an American biscuit is a British scone.
DBND TIL In the Tarantino Universe, Lt. Aldo Raine is Floyd’s (the stoner on the couch from True Romance) great grandfather. Both were played by Brad Pitt.
pY6dO TIL that contrary to popular belief, it's virtually impossible to overdose on fentanyl from accidental exposure. It can't be absorbed through the skin, and at the highest airborne concentration, an unprotected person with 200 min of exposure would only absorb 100 mcg (5% of a lethal dose)
yQyPJ TIL that the Plague of the Middle Ages likeky did not make 10% Europeans resistant to HIV by increasing the frequency of a protective genetic mutation (CCR5-Ä32), scientists DNA tested 4900 year old skeletons and found the mutation was already common in the Bronze Age