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TIL that human saliva contains natural painkiller which is nearly six times more potent than morphine.

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74J7 TIL: In 1922 the New York Times published an article on Hitler in which the author argued that “Hitler’s anti-Semitism was not so genuine or violent as it sounded, and that he was merely using anti-Semitic propaganda as a bait to catch masses of followers.”
Aeag TIL that to lick a wound is an instinctive response in humans and many other animals. It is because saliva contains a substance that promotes blood clotting and the enzyme lysozyme, which attacks the cell walls of bacteria, to guard against infection.
Me8VA TIL about the Balearic Slingers. Little is know about these Light infantry mercenaries who fought against and then for the Roman Empire. Highly skilled and feared for their ability to strike down enemies up to 400 metres away, using ammunition made from stone, hardened clay or lead.
vPNl8 TIL: United States produces more crude oil than any country, ever
6Ex6Q TIL that to clean out the sewer pipes that tended to block, the mayor of the city of Bulawayo, Zimbabwe instituted a synchronized flush. Residents who did not comply were fined.