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TIL Why the Can Opener Wasn’t Invented Until Almost 50 Years After the Can

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WkQ98 TIL that Alexander Fleming, discoverer of the miracle drug, Penicillin, almost gave up on it entirely because it was very hard to extract. It was only with the help of Sir Howard Florey and Ernst Chain, whom developed a method of mass production, could penicillin be made available to millions.
gRGX TIL that school administrators let 16-year old Bill Gates write the computer code to schedule their students in classes. He modified the code so he was placed with “a disproportionate number of interesting girls”.
PYaXE TIL of ‘Sin Eaters’ whose job it was to “eat” the sins of a deceased person. The position only paid a couple dollars per sin eating and it usually called for the individual to eat a piece of bread that had been sitting on the dead person’s chest or lips.
WWDX TIL the word Britain is derived from Pretain meaning “painted” - originally because the Britons had tatoos.
Z8yyB TIL that one of the earliest uses for the term Round Robin was a document signed by multiple parties in a circle to make it more difficult to determine the order in which it was signed, thus preventing a ringleader from being identified, a mutiny on a ship for example.