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TIL about Cambodia's memorials to documenting vicious rule of Pol Pot and the genocide of the Khmer Rouge. Nearly 20% of Cambodia's population were murdered and buried in mass graves.

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VBmA0 TIL when making the cover art for Pink Floyd's 1976 album "Animals," a 12-meter large inflatable pig broke loose and floated over Heathrow, causing flights to be canceled. The pig eventually landed in a farmer's field in Kent, scaring the cows.
Ev6w TIL that usury, the practice of giving loans that unfairly enrich the lender (e.g., interest), is condemned in most religious texts, including those of Buddhism, Christianity, Islam, Judaism, and others.
R7j0Q TIL Army Ants Are Being Used To Stitch Up Wounds In The Villages Of Africa
OpmX TIL that in 1975, physicist Kip Thorne bet Stephen Hawking one year of issues of Penthouse Magazine that black holes exist. Thorne won.
16Q8D TIL about the Pascaline, a mechanical calculator invented by Blaise Pascal in 1642 to help his father, who was supervisor of taxes in Rouen. The Pascaline added and subtracted two numbers, and multipled and divided through series of additions or substractions