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TIL As a child, Alice Munro was appalled by the ending of The Little Mermaid by Hans Christian Anderson and rewrote the ending to a happy one

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yDoM TIL human fingers can discriminate between surfaces patterned with ridges as small as 13 nanometers in amplitude & non-patterned surfaces. This means that if your finger was the size of the Earth, you could feel the difference between houses from cars
GYZ57 TIL About a 15,600-year old human footprint discovered in southern Chile that is believed to be the oldest ever found in the Americas
BrxOK TIL Paul Revere never managed to warn anyone. He was actually captured, escaped, and then captured again. He was riding with two friends and it was one of them that escaped and managed to warn the Colonials.
KYZ6E TIL of the ancient law of General Acerage. If a ship carrying cargo needs to jettison some of its load to save the rest, that loss is to be shared proportionally among interest holders and the ship owner. First written into law in 800BC, it continues to be declared in maritime emergencies.
R7eO1 TIL about Bertha Lutz, a Brazilian zoologist who specializes in studying poisson dart frogs that was also a leading figure in the Pan American feminist movement who signed the UN Charter for Brazil and where she also fought for women’s suffrage.