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TIL That 68% of world's population (especially Asia & Africa) is lactose intolerant, which makes them incapable of digesting milk and its products

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lo59K TIL that in 2015, the State of New York conducted DNA tests on popular supplements and found that in 4 out of 5 cases the pills contained nothing more than filler
9Y65B TIL Several computer algorithms have named Bobby Fischer the best chess player in history. Years after his retirement Bobby played a grandmaster at the height of his career. He said Bobby appeared bored and effortlessly beat him 17 times in a row. "He was too good. There was no use in playing him"
R50M7 TIL (after breaking both clippers and some weak scissors) that you're supposed to clip nails and toenails after a bath, when they are softer.
GYGWg TIL that in 2010, the Colombian government successfully transmitted a Morse message to their captive soldiers by composing a song popular enough to hit local top 40 radio and disguising the Morse Code in a synth interlude
9wPNG TIL Joseph Christmas, the first white American to explore the Grand Canyon, thought it worthless to visitors, writing, "The region is valueless. After entering there is nothing to do but leave. Ours has been the first and will doubtless be the last party of whites to visit this profitless locality."