› added 7 years ago

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TIL: Leonardo da Vinci Hid Invisible Drawings in His Sketches and High Tech Scanners Have Brought Them to Light

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via reddit.com

GAe9g TIL that in Japanese, Genghis Khan ("ジンギスカン" or "成吉思汗") refers to a grilled mutton dish, while the founder and first Khan of the Mongol Empire is taught in textbooks by his regnal name, Chinggis Khan ("チンギス・ハーン"), rather than as Genghis Khan.
R77va TIL that during WW2, American and Soviet russian fighters engaged in a dogfight over Serbia. It was one of the only two direct military engagement between the two nations in history.
pBoQ TIL the holes in Pen lids were introduced to prevent suffocation, regardless of how far down the airway they lodge.
XybE TIL that astronaut Alan Shepard peed himself minutes before becoming the first American in space.
4VJ6 TIL: Hollywood has had a population of feral chickens living under a freeway since the 70s. Nobody knows how they got there and all efforts to remove them have failed.