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TIL on September 19, 1985, when Frank Zappa famously testified before Congress to protest the PMRC’s attempt to legislate and censor heavy metal music lyrics, Zappa compared the proposed legislation to “treating dandruff by decapitation”

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mmKY TIL No one knows where the word “dog” originally came from. Appearing without cognates in Old English, it displaced the more common “hound” within 400 years and went on to find its way into 7 other European languages.
Ljlv TIL that a single lake (Lake Baikal) holds one fifth of the world’s unfrozen fresh water; more than all the great lakes combined, yet it covers half the area of Lake Michigan. It is both the deepest (1 mile) and oldest (25 million years) lake in the world.
kYb1 TIL an American pizza delivery man was killed when a bomb fastened around his neck exploded. At the time of his death he had been arrested for robbing a bank. He told police that three people had locked the bomb around his neck and would not release it had he refused to commit the robbery
gMwwA TIL there’s a protein made by placenta cells called syncytin which aids in the attachment of the placenta to the uterine wall, making it essential for nutrients to get to the developing fetus. The gene that codes for the protein actually came from a virus millions of years ago.
bQbZ TIL Australia & New Zealand introduced long service leave in the 1860s, a 13 week vacation for every 10 years of work, to allow time to sail back to England, have a 3 week holiday, and sail back.