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Today I learned that the 19th Amendment (Women's Suffrage) almost wasn't ratified until a Tennessee senator who was against it (Harry Burns) received a letter from his mother telling him to "be a good boy" and vote for ratification. He broke the deadlock the next day and the 19th was ratified.

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jN5Gv TIL Recent research has suggested plague first infected humans in Europe and Asia in the Late Neolithic-Early Bronze Age. Research in 2018 found evidence of Yersinia pestis in an ancient Swedish tomb, which may have been associated with the "Neolithic decline" around 3000 BCE.
6EeWY TIL that although Nazi Germany sterilized or murdered 73-100% of all schizophrenics in Germany (about 220K-269K people), there were no long-term effects on subsequent rates of schizophrenia in Germany. In fact, post WWII rates were unexpectedly high.
Eg1Zw Til a disease is something that needs to be cured, such as infection, injury, toxic exposure, cell degeneration, etc. Illness is something that needs to be managed such as feelings of pain, discomfort, distress, weakness, fatigue, etc.
W9oo TIL, that mathematician, George Dantzig solved a simplex linear problem, that was thought to be impossible to solve, by accident, because he arrived late to class, and thought the problem on the board was a homework assignment.
x6aXD TIL that on 15th August 1939, two weeks before the outbreak of Ww2, the luftwaffe lost 13 Ju-87 Stuka in a minute. The incident is know as "Nuehammer Stuka Disaster".