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183

TIL Barbers were also Dentists for centuries!

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5MNr TIL in 1897 Indiana tried to change the value of Pi to 3.2 via legislation
e0Qvk TIL that the atomic bombs were almost dropped on Japan by British Avro Lancaster bombers. Hap Arnold, head of USAAF, insisted that an American plane be used, and the B-29 was modified to accept the huge nuclear devices.
Z5Wa TIL that psychiatric hospitals were first pioneered by the Islamic world. The treatment of mental patients was regarded as a religious obligation.
oR1DA TIL people with blue eyes indicate a lack of melanin. Eye color is directly related to the amount of melanin in the front layers of the iris. People with brown eyes have a large amount of melanin in the iris. It's believed blue eyes are can be traced to one human being. Darker eyes help reflect sun.
8eBXV TIL Bell Labs still exists as a subsidiary of Nokia.