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TIL in the 1970s, in order to study depression, psychologist Harry Harlow used a "pit of despair" where he put alone for up to ten weeks monkeys from 3 months to 3years old already bonded with their mothers

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grn57 TIL that the state of Michigan rejected more than 21,000 custom license plates over the past decade for being “offensive” - and you can read them all because providing everything in the system was the only way to fulfill a FOIA request for 1 year of rejections since the system “can’t sort by date”
QJD0X TIL that British longbows in the 1600's netted much longer firing ranges than the contemporary Native American Powhaten tribe's bows (400 yds vs. 120 yds, respectively). Colonists from Jamestown once turned away additional longbows for fear that they might fall into the Powhaten's hands.
epNZb TIL Daniel Carleton Gajdusek, an American physician and Nobel Prize winner, was charged of child molestation, including that of the children brought home from research trips to live with him.
1aYE4 TIL that Ryanair once considered charging passengers for using the bathroom on the plane
epwJD TIL Tim Sweeney, Epic Games CEO originally wrote 90% of the code for the first Unreal Game Engine and has since used his fortune to protect more than 50,000 acres of forests for conservation purposes