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TIL Sherlock Holmes was inspired by a real person, Doyle based the character of Sherlock Holmes at least in part on Dr. Joseph Bell, a surgeon and professor at Edinburgh’s Royal College of Surgeons.

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XlRj TIL that human races do not exist taxonomically. A fixation index of 0.25 is required for a species to have various sub-species. Humans have a fixation index of 0.11, less than half of the required criteria of genetic diversity needed for the existence of sub-species or races.
LQ0lZ TIL that the first presentation of Tourette syndrome (a neurological disorder characterised by the presence of motor and vocal tics) is thought to be in the 15th-century book Malleus Maleficarum, which describes a priest whose tics were "believed to be related to possession by the devil".
PYA7n TIL if ripening cherries are not dried after it rains, they will soak up the water, split, and can't be picked and sold. Helicopters slowly maneuver 5 feet over the trees. The intense rotor wash blasts the water off the cherries! (this is part of the reason cherries are expensive)
91nM TIL A man in China was dumped by his girlfriend because he was too poor to take her to the movies. Six years later, he booked four IMAX theaters in Beijing for one night and gave away all the tickets for free to prove how rich he is now and to show her what she was missing.
ADLYo TIL Bill Russell played only 13 seasons in the NBA and won a championship 11 of those years. For comparison, Michael Jordan played 15 seasons and won 6 championships, Kobe Bryant played 20 seasons and won 5 championships.