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TIL that Chicago is home to a significant Appalachian population. Between 1940 and 1970, approximately 3.2 million Appalachian and Southern migrants, both black and white, settled in Chicago and elsewhere in the Midwest. Uptown gained a reputation for being a “Hillbilly Heaven”.

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WGjA TIL of the legend that Athens’ first female physician dressed as a man to help women during childbirth. Male physicians accused her of seducing the women, leading to her appearing in court, where she revealed herself as a female and Athenian law was changed to allow female physicians.
e0715 TIL of infrasound - a low-frequency sound (19Hz and below) that cannot be heard, but literally unsettles human beings. Some horror movie music composers use this sound to make audiences feel dread just before disturbing or scary images appears on the screen.
0w17A TIL tumbleweed is native to the Ural Mountains in Russia, and was brought to the US around 1877.
7rg9M TIL that within a month of opening her pediatric clinic, Dr. Kathleen Holland experienced six cases of children stopping breathing during their visit, one of whom died. One of her nurses had been administering dangerous injections to them, and was in fact a serial killer, unbeknownst to Dr. Holland.
GyD1 TIL a Croatian man, Frane Selak, escaped death several times throughout the mid-1900s, including (but not limited to) falling out of an airplane, being hit by a bus, and swerving off a road and over a cliff to avoid an auto accident. In 2003, he purchased his first lottery ticket, and won.