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TIL that the top secret SOG operators in the Vietnam war had trouble hiding their boot prints on Viet Cong trails, even trying special boots with bare footprint soles. They eventually collected 20,000 pairs of used boots from US combat hospitals and air dropped them to the NVA and Viet Cong.

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5YXjp TIL that in 1736 the mathematician Leonhard Euler was trying to find a way to cross every single one of the seven bridges of Königsberg exactly once. He realized that this was, in fact, impossible and based on that created a new area of mathematics called Graph Theory.
QNaok TIL that Japan set a new internet speed world record in 2024, reaching 402 terabits per second, fast enough to download 50,000 full HD movies in one second, using standard commercial optical fiber.
kOQj7 TIL that Judge Ito ( of OJ simpson trial fame) was married to the former superior officer of Mark Fuhrman (of OJ Simpson trial fame)
9YjRm TIL In 1944, a crossword writer for The Daily Telegraph caused alarm at MI-5 by accidentally publishing information on the impending D-Day landings. "Utah", "Omaha", "Overlord" and other codewords all appeared in his work a month before the invasion. It turned out to be entirely harmless chance.
wAWo TIL Mr Bean’s humour truly crosses language and cultural barriers; a friend of Rowan Atkinson’s was in a poor African village during the 90s when she heard loud laughter coming from a shack. She went in & discovered most of the village gathered around a fuzzy black & white TV watching Mr Bean.