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Today I learned that stock market fraud has been around since the 16-18th centuries

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LQ1EV TIL that the painting “Head of Christ”, an American view of Jesus, has been dubbed the “best-known American artwork of the 20th century” based in terms of widespread diffusion despite few people knowing the name of its author (Warner E. Sallman).
m1rZM TIL that the sayings "in the first place" "in the second place" stems from the method of loci, a collection of mnemonic techniques for memory enhancement
R74G9 TIL an MIT researcher was concerned about the censorship of human genitalia on extraterrestrial messages, so he recorded & transmitted the sound of ballerinas' vaginas contracting. The Air Force terminated the project, but test messages made it to two nearby stars in 1996 & 1998.
rRv91 TIL The reason Roman structures survive so long is because they used volcanic ash in their concrete, which slowly transforms to aluminum tobermorite when exposed to sea water. Something modern scientists have been trying to do for decades.
d8Za8 TIL tug-of-war used to be an Olympic sport. In the 1912 Olympics in Sweden, the host nation took gold, Great Britain took silver, and no one won bronze because only two teams showed up.