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TIL Octopuses have blue blood, three hearts and a doughnut-shaped brain

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78rWb TIL that malignant teratomas can sometimes contain hair, teeth, bone, neurons, and even eyes.
eWkD TIL In the Korean War, US mortar teams accidentally ordered hundreds of crates of Tootsie Rolls instead of rounds because the US military sometimes used “tootsie rolls” as code for mortar rounds
pRrb TIL a US Navy battleship was shut down for 3 hours because its computer divided by zero, causing the whole network to crash.
rRoGW TIL Charles-Henri Sanson, official executioner of France from 1778-1795, who executed 2918 people - including King Louis XVI - with his own hand, intended for his eldest son to inherit his position, but that son died in 1792 after slipping off a scaffold as he displayed a severed head to the crowd
nlOB TIL In 1876, the Sultan of Turkey gave marijuana to the United States as a gift. By 1880, Turkish smoking parlors were opened all over the northeastern U.S.