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TIL that barbers in the medieval times used to perform surgery and tooth extractions in addition to cutting hair, which is why barber’s poles are red, white, and blue.

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9my6 TIL Szechuan peppers cause numbness when eaten because they contain hydroxy-alpha-sanshool, a molecule that binds to cells’ tactile receptors to chemically simulate the same sensation as being vibrated at 50 hertz.
D1OPY TIL Emmy Noether, one of the most important mathematicians of all time, was denied a salary for 16 years because German universities objected to her being a women.
6OlW TIL that Stephen Wolfram dropped out of Eton because of boredom. He went to Oxford, but again dropped out. He went to Caltech, and received a PhD in particle physics at the age of 20.
D1BwP TIL the video game industry makes more revenue than the film and music industry combined.
R54D8 Til Marcus Licinius Crassus, often called the richest man in Rome in time of Julius Ceasar, created first ever Roman fire brigade. However the brigade wouldn't put out the fire until the owner would sell the property in question to Crassus for miserable price.