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TIL the chemical reaction in glow sticks was discovered by Dr. Edwin Chandross in 1962, but he had no idea the "chemiluminescent" objects were popular at music shows until a Vice interview in 2013. "Is that so?" he said. "Maybe my granddaughter will think I'm cool now."

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via reddit.com

kOvg4 TIL that a skull-shaped asteroid is passing by earth after Halloween. The last time it came close to earth was Halloween 2015, within 300,000 miles.
YpZKr TIL US President Benjamin Harrison had electric lights installed in the White House, but would sleep with the lights on because he was too afraid to touch the switches.
j6dxX TIL the Language with the largest dictionary by number of words is Tamil with 1,347,142 headwords followed by Korean with 1,149,538
d8dlQ TIL Emilio Salgari, Italy's greatest adventure writer and the "Father of Spaghetti Western", never traveled outside Italy, all he knew about foreign cultures he learned from books and travel manuals.
eAon TIL that “giddyup” is a contraction of “get thee up”