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TIL in 1918, microbiologist Alice Catherine Evan warned that raw milk should be pasteurized to protect people from various diseases. She was met with skepticism, particularly because she was a woman and did not have a Ph.D. During the 1920s, scientists around the world made the same findings

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ek8J TIL the “half your age plus seven” rule for dating has been around since at least 1901.
g0my TIL that the Pyramids of Giza were more ancient to the ancient Romans, than Rome is ancient to us.
ZpXAp TIL that the average height of a male gymnast is 5'3-5'6
ZJ94 TIL that a woman tried to sue Cap'n Crunch when she learned that Crunchberries were not real fruit.
EggZx Til Before Serena Williams, there was Althea Gibson – the first African American to compete at US National Championships and the first to be ranked No.1 in the world. She achieved this during a time when American sports is still very segregated.