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TIL in 1995, McDonald’s asked Greenpeace activists to stop criticizing their company publicly and instead do it only in private with their friends. Activists said they’d agree if McDonald’s stopped advertising its products and instead only recommended their restaurants privately to friends.

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mByY TIL of “Fan Death”, a well known myth in South Korean culture, that running an electric fan in a closed room with unopened or no windows can lead to death. Despite no concrete evidence to support the concept, fan death persists due to its popularity as an urban myth or superstition.
p8oxp TIL the opposite of albinism is melanism and it is only present in animals but looks incredible.
XE7eQ TIL there is such a thing as the history of history, called historiography, where emphasis is placed on studying the history of historical texts.
KO4XQ TIL that the theory of gravitationally-assisted space travel - which enabled NASA’s Voyager and other missions to explore the solar system - was invented by a summer intern at JPL in 1961. He and his revolutionary idea were initially ignored, and he was not offered a job at JPL or NASA.
loNWB TIL In a study, people were required to pour sugar into a jar, then label it as “Poison”. Despite having poured the sugar themselves, people later refused to consume it. They knew their negative feelings were irrational, but they could not get themselves to shake their intuition away.