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TIL that Tibetans underwent the fastest genetic change ever observed in humans. Biologists found 30+ genes with DNA mutations more prevalent in Tibetans than their predecessors, the Han Chinese, half of which help the body regulate oxygen use. They even have a "super-athlete gene" called EPAS1.

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Mp7a TIL A Michigan Police Officer bought a car seat for a man’s daughter instead of giving him a ticket.
Va7k TIL of Max Yasgur, the man who hosted Woodstock on his dairy farm. He got threats from his neighbors, but said “if the generation gap is to be closed, we older people have to do more than we have done.” He also got angry when people were trying to sell water and provided it free of charge.
D1PrJ TIL in 1847, Robert Liston performed a quick amputation where he also accidentally amputated his assistant’s fingers; both patient and assistant later died of sepsis. A spectator also died of shock, resulting in the only known surgical procedure with a 300% mortality rate.
9Yp6M TIL Prince Yasuhiko, the perpetrator of Nanjing massacre was never charged after the war because of he was member of the Imperial family. General Matsui was executed despite forbidding his men to loot and expressed grief in his diary when his order was disobeyed.
p8aMb TIL that the Greenland shark is deemed biologically immortal. With the estimated life span of up to a 500 years, reaching sexual maturity at around 150 years of age, the Greenland shark is the longest living vertebrate on the planet. Not a single specimen has been observed dying from old age.