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TIL hair length is significantly correlated with female attractiveness because it reveals several years of a person’s health status, acting as a cue signifying reproductive potential.

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rRp1y TIL of the Fan Meifuri Movement. In 1948, protests erupted in China as Americans pardoned known Japanese WW2 War Criminals. Fearing communist influence, the KMT cracked down hard against the protests. This in turn demoralized many nationalists with the KMT, aiding the CCP's victory in 1949.
D1KXD TIL that Beatrix Potter, while the celebrated author of "The Tale of Peter Rabbit", she was also respected in the fields of natural history, entomology, and most notably mycology: the study of fungi
YpMmB TIL heels were first made by the Persian cavalry to keep stability while shooting arrows. It later became popular in Europe as masculine symbol until 1630 when women followed the fashion. First a military asset then a masculine symbol and now feminine.
GRKJ TIL that cows have “best friends” and get stressed when separated
89aK TIL that diamonds are not as valuable or rare as we think: they’re only expensive because of a worldwide monopoly on diamond mines.