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TIL that in social psychology, pluralistic ignorance is a situation in which a majority of group members privately reject a norm, but go along with it because they assume, incorrectly, that most others accept it. "No one believes, but everyone thinks that everyone believes"

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d8K5E TIL that Oskar Schindler died broke, having spent his entire fortune (equivalent to $14 million) saving Jews from the Nazis. Of the 15 million Jews left alive today, roughly 15,000 of them owe their lives to Schindler. He is the only Nazi buried on Mount Zion.
R5pW6 TIL that the numerals that the majority of the world uses today were introduced from Béjaïa, Algeria to Europe via Italy through the Liber Abaci, a 13th century book written by Leonardo Fibonacci, who was introduced to them during his time in Béjaïa.
DQvjV TIL the smell of women's tears can reduce aggression in men
A5bB TIL that Gregor Mendel started off breeding mice, but had to switch to plants because monks shouldn’t live with sexually active beings
e0XRk TIL about A-230, a new Russian chemical considered to be the most potent nerve agent ever discovered. It’s estimated that less than 0.1 mg is lethal for humans. It was added to Schedule 1 of the Annex of Chemicals of the Chemical Weapons Convention as of June 2020.