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TIL that some poison dart frogs secrete a painkiller called epibatidine. Epibatidine is 200x more potent than morphine and is nonaddictive, but has a therapeutic dose that is dangerously close to its lethal dose

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R67j TIL: Hebrew became extinct as a spoken native language around 200 CE. It was revived in Paris on 13 October 1881 when a man called Eliezer Ben-Yehuda and his friends agreed to exclusively speak Hebrew in their conversations.
D1bOr TIL That the Twinkie diet study, which aimed to prove that only calories mattered for weight loss, was secretly (at the time) funded by Coca-Cola.
arZM TIL that during the era of Genghis Khan, the Mongols celebrated a victory over the Russians by laying survivors on the ground, dropping a heavy wooden gate on them, and then having a victory banquet on top of it while the victims suffocated and were crushed to death
M7XJ0 TIL the very first draft of Star Wars: A New Hope was a two-page outline called "The Journal of the Whills". It would be about the adventures of Mace Windy, a "Jedi-Bendu" from Planet Ophuchi, and his "padawaan learner", a 16-year-old boy called C.J. Thorpe.
Bawb TIL the term bucket list is derived from the phrase kicking the bucket which is derived from the kicking of the bucket from under your feet as you hang yourself.