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TIL in 1957 a governor used the national guard to block black students entering a desegregated school. Elizabeth Eckford mistakenly arrived on her own and was hounded by an angry mob. The 101st airborne was summoned by the president who protected her and 8 other black students while at school.

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4k1PJ TIL pilot error is a leading cause of airplane crashes. In 2004, it was cited as the primary reason for 78.6% of disastrous general aviation accidents. Some causes are fatigue, faulty memory, and poor interpersonal communication. Using checklists has reduced risks over time.
4XBA5 TIL about Taarof, Iranian etiquette in which the host offers anything to the guest and the guest declines it repeatedly until eventually giving in, regardless of whether they want it or not. Taxi drivers might refuse payment initially as passengers are meant to insist on paying.
gM0jy TIL we don't actually know what William Shakespeare looked like. All remaining portraits of him were produced after his death. There are no surviving written descriptions of what he looked like either.
8epmV TIL, that because Mars father is Jupiter and Jupiters father is Saturn, Johann Bode proposed that the 7th planet should be named after Jupiters father. Bode was unaware of the fact that Uranus was the greek and not roman god. There are now 6 planets named after roman gods and 1 named after a greek.
Wmv9 TIL the sugar industry paid to play down the link between sugar and heart disease while falsely promoting saturated fat as the culprit. Documents discovered by a researcher at UCSF show how decades of misinformation shaped improper nutritional advice and caused the rise of heart disease in America.