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98

TIL in 1692, an impoverished widow and mother of 8 named Susannah Martin fell victim to the Salem Witch Trials and was hanged. Her great-great-great-great Grandson would become the 21st President of the US, Chester A. Arthur.

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rN4Qx TIL that the first use of an external defibrillator was on a 14-year-old boy in 1947. These early defibrillators used alternating current that was transformed from 110–240 volts available in the line, up to between 300 and 1000 volts, to the exposed heart by way of "paddle" type electrodes.
XLJk TIL The Queen and Margaret Thatcher once wore the same dress, much to the prime minister’s horror. To avoid such an embarassment again, she ordered her staff to ask the Palace what the Queen would be wearing. The Palace declined, saying “Her Majesty never notices what other people wear.”
KO014 TIL that the pilot of the only F-117 Stealth to be shot down in combat is now friends with the missile commander that brought him down. He has since traveled with his whole family for a stay in the home of his now retired former adversary.
WkNkY TIL During the American Revolution, an enslaved man was charged with treason and sentenced to hang. He argued that as a slave, he wasn't a citizen and couldn't commit treason against a government to which he owed no allegiance. He was subsequently pardoned.
vPKJL TIL Merriam Webster has an alphabetised index of 315,000 cards with every word in dictionary spelled backwards on them. Before the internet, the cards were used to identify words that end with the same letters.