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TIL taking a magnesium supplement can bring you down from too much caffeine

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9YQoQ TIL: There's a parasite found in cat feces called T. gondii which can cause permanent personality changes in humans and is associated with higher rates of schizophrenia, suicide & other neurological conditions.
ZpY6v TIL Louis Braille faced resistance towards and doubts about his writing system for the blind, called Braille. His school burned books he and his classmates had transcribed into Braille, since the school thought that the effectiveness of Braille was a threat to their revenue.
KAaJ TIL that the CIA operation to invade Cuba and take down Castro was called “Operation Castration”
d9xZ TIL Angelina Jolie purchased 60,000 hectares of Cambodian land that was infiltrated by poachers and turned it into a wildlife reserve. Some of the former poachers were employed as rangers.
VAKm TIL a black woman in 1828 won a lawsuit against a white man who sold her son into slavery. She was the first black woman to win a lawsuit against a white man.