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98

TIL Graham crackers were originally invented to prevent masturbation

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nep9G TIL Bhagat Singh Thind gained US citizenship in 1918, only to be stripped of it 4 days later for being Indian. His 2nd attempt had the Supreme Court rule against him. He succeeded in his 3rd attempt. He was also the first turbaned (Sikh) member of the US Army, serving during WWI.
grYN8 TIL that bees can recognize individual human faces — something only a few non-human species can do.
5YoJ8 TIL yogurt was invented in 5000 BC and the combination of yogurt and honey was called "the food of the gods".
RQBj TIL: nine out of the ten largest Pharmaceutical companies in the world spend more on marketing than R&D
kLe5 TIL that because the concrete of the Hoover Dam was poured into individual, rectangular shaped sections–rather than with a single, continuous pour–the physical dam itself will survive up to 10,000 years and be one of the last remaining visible and recognizable monuments of humans on the planet.