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TIL Since 2018 all new cars sold in the United States and Canada have had to include a backup camera. The first mass production car to include a backup camera was the Toyota Soarer in 1991, though concept cars such as the 1956 Buick Centurion had the feature aswell.

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QNxbp TIL Batman's creator, Bob Kane, initially envisioned Batman with a red suit and a domino mask. His friend Bill Finger contributed the iconic black suit, the name Bruce Wayne, Gotham, The Joker, etc. In 1965 Kane denied Finger's claims that he created Batman, stating that it's fraudulent and untrue.
VM87p TIL Viking women’s faces were more masculine than today’s women, while Viking men's faces looked more feminine than today's men, with a less prominent jaw and brow ridges. The ambiguous facial features mean that it is difficult to decide upon a Viking skeleton’s sex based on the skull alone
VMWY8 TIL John Prine was discovered as a singer by Roger Ebert.
4X6PR TIL that Rachel Carson, the scientist that discovered DDT's effect on wildlife, was seen as a threat to agricultural business. To discredit her, the U.S. Secretary of Agriculture wrote a letter to President Eisenhower arguing that since she was unwed and attractive, she must have been a Communist.
0d7Xj TIL In 2012 San Diego's annual Fourth of July fireworks show had a computer glitch, where fireworks programmed for 17 minutes all went off at once (here is one video, there are lots of others; some spectators mad, others ecstatic)