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TIL that Eratosthenes, a Greek mathematician and astronomer (276 BC), measured of Earth's circumference by using the shadow angles from the sun in two locations. He calculated it was 39,375 km, which is 1.4% less than the real number of 40,076 km

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Y7YWZ TIL that Charles Duke, who was the tenth man to walk on the moon, left behind a plastic-encased photo of his family on the Moon.
N7k9Q TIL about Humphrey the whale. Entered San Francisco Bay two times in 1985 and 1990. Both of his bay incursions resulted in rescue by the Marine Mammal Center, based in Marin County, California, assisted by the United States Coast Guard and hundreds of other volunteers.
XaJP TIL during the sentencing of his war crimes trial, Hermann Göring (one of Hitler’s top officers) asked to be shot as a soldier and not hung as a common man. The court refused and instead he committed suicide with a potassium cyanide capsule smuggled into a fountain pen.
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GYmNg TIL that DJ Khaled has his own furniture line