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TIL During the 1930’s IBM created a census for Nazi Germany identifying Jews, Gypsies and other ethnic groups by their nationality, gender and occupation which helped the regime significantly to organize and slaughter millions of innocent lives.

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R7k71 TIL Power lines look like terrifying bursts of light to animals that perceive UV light.
X0ZD6 TIL in 1931 a 15 year old went to a hospital in Chicago and was mistakenly given a transfusion of blood from a parrot because the physician misheard the doctor’s instruction to “use her parents’ blood.” The hospital staff frantically searched for a parrot and extracted its blood for injection
yV8Jp TIL: The positive form of stress is "Eustress", where you feel motivated and focused and perform at your peak
OoDKX TIL that the people on house hunters already bought a house before the show and the rest is staged
NXpW8 TIL that during the filming of the Doctor Who serial “The Celestial Toymaker”, the BBC got in trouble after a character meant to be inspired by Billy Bunter claimed to be him at the end of one of the episodes. The Continuity Announcer had to make an apology to avoid a lawsuit.