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TIL Benjamin Franklin designed the first American penny called the Fugio Cent. The coin was engraved with a sundial and the words "Mind Your Business".

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N1YE TIL in 1996 Fox tried to place a computerized blue halo around the pucks in hockey games to make them more visible. That technology later evolved into the yellow first down line in football.
LEyQ TIL that autotune was originally developed by Exxon as a method of interpreting seismic data.
LQNjV TIL about Companion Planting, which helps gardens grow by planting strategically based on root compatibility and soil optimization
MeoDA TIL Charles Lindbergh was a fascist and made several trips to nazi Germany in the 1930’s to inspect its Air Force. President Roosevelt privately called him a nazi.
e0l5D TIL during WWII, the national speed limit was reduced to 35 mph to save gasoline and tire wear. A trip across Utah could take nine hours instead of five.