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TIL that over 10% of the population of a small Polynesian island has an incredibly rare form of colour blindness which renders them unable to see any colours at all. This is because a 1775 typhoon wiped out all but 20 of its inhabitants, and the ruler at the time carried this allele.

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9a8m TIL that extensive child poverty is the main reason America’s children score poorly on international education measurements. When you measure the test scores of American schools with a child poverty rate of less than 20%, American children outperform every nation in the world.
5Y78r TIL about the “Oh-My-God” particle, which, on the night of October 15, 1991, streaked across the Utah sky traveling at 99.99999999999999999999951% the speed of light with 320 exa-electron volts (EeV) of energy
jpRR TIL that Scatman John suffered from a severe stutter from the time he learned to speak, which led to an emotionally traumatic childhood. He then made the song, “Scatman,” in which he intended to inspire children who stuttered to overcome adversity.
nWRG TIL The office of President of the US can be transferred to the Vice President if a majority of the cabinet votes that the sitting President is incapable of his duties. In theory, the cabinet could peacefully stage a coup and overthrow the president.
KODN6 TIL that in the 80s, three brothers from Florida got HIV from medicine made to help cope with their haemophilia. After first being disallowed to go to school, a federal court ruled they were allowed to attend. A week after the verdict, their house was burned down by an arsonist.