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TIL Charcoal toothpaste whitens your teeth by sanding off your outer enamel

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via reddit.com

bRW7 TIL that the SR-71 “Blackbird” was so fast that a standard evasive maneuver in case it detected a SAM missile was simply to outfly the said missile. Also, out of the 12 losses, none of them were from enemy fire, but from accidents.
d8YY8 TIL Morocco was once a haven for gay Americans and Europeans who wanted to bang inside buildings or dungeons. As back then the society was full of paradoxes, people were able to be free.
oJ0r TIL That the officer in charge of guarding Abraham Lincoln in Ford’s Theater left his post to go drinking… at the same bar where John Wilkes Booth was building up the courage to shoot the President.
OoYO6 TIL Like smallpox, Polio is on its way out with 22 cases worldwide in 2017
KOQwR TIL when Spartans lost the battle of Megalopolis, their king Agis III, now wounded and unable to stand, ordered his men to leave him behind to face Macedonian army so that he could buy his men time to retreat. He slew several enemy soldiers before being finally killed by a javelin.