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TIL: In 1766–1769, Jeanne Baret was the first woman to circumnavigate the globe. During most of the trip, she was disguised as a man.

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Egn1W TIL We call heavy armoured fighting vehicles Tanks to keep their nature secret. The British pretended that they were water carriers or water tanks.
OobBe TIL about John Deydras, a man who claimed to be the true son of Edward I. After being put on trial, Deydras accused of being misled by his devil-possessed cat. Both he and his cat were subsequently hanged.
OGxn4 TIL that Tyrian purple or royal purple is a redish-purple natural dye. It is secreted by several species of predatory sea snails. Twelve thousand snails yield no more than 1.4 g of pure dye, enough to colour only the trim of a single garment.
j6xWR TIL the reason nearly all TV and radio political ads in the United States include something like "I'm _ and I approve this message" is because an act from 2002 requires it
l75aN TIL that any point that can be constructed using compass and straightedge, can also be constructed using compass alone 🤯