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TIL that sometime in 1981, President Ronald Reagan ordered an SR-71 to spy on a secret North Korean conference, not because there was anything to learn, but because the repeated sonic booms would interrupt the conference and there wasn’t a weapon on earth which could shoot the craft down.

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WkRRd TIL about Baba Anujka, a serial killer from Serbia who is believed to have killed as many as 150 people using poison in the 19th and 20th century
4XdNa TIL In 2016 the oldest living leap year baby celebrated her 25th birthday on her 100th year of life
X9wD TIL that the highest paid athlete of all time is actually an ancient Roman charioteer named Gaius Appuleius Diocles, who earned the equivalent of $15 billion before his retirement.
OG4BX TIL Sugar gliders are one of the few species of mammals that exhibit male parental care. The oldest codominant male in a social community shows a high level of parental care, as he is the probable father of any offspring due to his social status.
KYy0w TIL that dental cavities are usually filled with a mercury-based alloy. Dental offices typically disposed of the excess by pouring it down the drain, a practice that was only outlawed in the United States in 2017.