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GvQ7 TIL that no one knows who invented the fire hydrant, because its patent was burned in a fire.
NvrN TIL In 1959, Volvo invented the 3-point seat belt, then gave free license to all other car manufacturers to use it. [x-post from r/Autos]
Ar97 TIL there is a sport called Banzai Skydiving in which you throw the parachute out of the airplane first and then jump after it.