› added 6 years ago

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TIL Chinese spy Shi Pei Pu masqueraded as a woman and used a 20 year long sexual affair with a French diplomat to steal intelligence. He even purchased a child and convinced the diplomat it was his.

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Z8JdD Til - Daniel Hale Williams was an American general surgeon, who in 1893 performed the first documented, successful pericardium surgery in the United States to repair a wound. In 1913, Williams was elected as the only African-American charter member of the American College of Surgeons.
6EoBJ TIL that AOL distributed so many CDs that at one point half of the CDs manufactured worldwide had AOL logos on them.
X5RR TIL the minimum number of people to populate a space colony with minimum inbreeding is 160.
4koMo TIL that German U boats sunk almost 400 American ships off the coast of North Carolina during WW2, causing over 5000 deaths
1a6wr Electronic toys for infants that produce lights, words and songs were associated with decreased quantity and quality of language compared to playing with books or traditional toys such as a wooden puzzle, a shape-sorter and a set of rubber blocks, according to an article published online by JAMA Pediatrics.