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TIL that the fat part of a worm is called a clitellum. “The clitellum produces a ring-like band after a worm mates. The ring moves forward, collecting eggs, and slips over the worm’s head. As it slides off, the ends seal and form a cocoon. Baby worms hatch from this cocoon.”

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MeDv8 TIL large ships use sea water as ballast; the water contains all sorts of living organisms which when released, results in the spread of invasive species around the world. This has an economic impact of billions of dollars a year to the US alone.
E1aEo TIL that the cottage where Ulysses Grant finished his memoirs is now an historic monument and is kept how it was when he died. On his desk is a large bottle of liquid cocaine. Park rangers check it annually to make sure it is all there.
LngQ TIL: that when women were excluded from the World Anti-Slavery Convention of 1840 in London and forced to sit in a “no speaking section”, William Lloyd Garrison, the conference’s keynote speaker, refused to give his speech and sat with the women, “dominating the convention without saying a word”.
LaQQ TIL Julie D'Aubigny was a famous 17th century French opera singer who once entered a convent just so she could have sex with a nun. She also had a habit of seducing women at parties, which would lead their husbands to challenge her to a duel. She was an expert duelist and killed 10 men like this.
DBxY TIL Sophie Walton, former slave girl and house servant to the Holiday family, taught a young Doc Holiday how to manipulate cards.