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TIL George Washington was the only president in American history to be unanimously elected by the Electoral College

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j6bxa TIL on the seabed between Catalina Island and the mainland lies barrels of DDT.
On84 TIL A teenager invented a quick-release ratchet and offered the patent to Sears. Sears told him the patent was valueless and gave him $10,000, then went on to make $44 million selling the ratchets.
vZdB TIL: Shark teeth are actually scales; that’s why they can infinitely grow them back
XE4LR TIL of Steller's Sea Cow, a recently extinct giant manatee that weighed between 4,000-11,000 kg
lomkK TIL after the Battle of Marathon in 490 BCE, an Athenian soldier named Epizelus lost his sight after his comrade next to him was killed despite not having any injuries himself, suggesting he suffered from hysterical blindness due to PTSD.