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TIL James Garfield is the only president of the United States to have made an original contribution to the field of mathematics. His proof of the Pythagorean theorem was published in the New England Journal of Education in 1876.

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nWeWr TIL that in 1965, artist Andy Warhol made an 8-hour, B&W silent film called “Empire” that consisted of one stationary shot of the Empire State Building. It had no characters or narrative, and Warhol stated that the purpose of the film was “to see time go by.”
JYmM1 TIL that the State of California by itself produces 50% of the nation's Fruits, Nuts, and Vegetables... and 20% of its Milk
nW0wo TIL that when the East India Company was at its peak it commanded a private army of over 260,000 soldiers, an army twice the size of the standing British army at the time
VM1nQ TIL that the territory of Nevada was rushing to become a state in time for the 1864 presidential election. After writing a state constitution with only days to spare, they sent all 16,543 words of it to Congress via telegram. Transmission took 2 full days and cost $4,303.27 (over $67,000 today.)
kll4 TIL 80% of antibiotics in the U.S. are given to farm animals, and 80% of pig farms, sheep farms, and cattle feedlots use low levels of antibiotics in feed and water. Evidence shows staph bacteria can pass from humans to pigs, evolve resistance to antibiotics, and then pass back into humans.