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80

TIL about the China - Vietnam conflicts from 1979–1991

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wLx48 TIL that modern F1 race cars have large wooden board attached under them to make sure the cars do not skid on the race track more than allowed. The board is measured before and after the race, and driver can get disqualified if the board gets too thin.
0wJR5 TIL the first close up photo from Mars was taking so long to print that impatient scientists taped the raw data to the wall and colored over it with pastel crayon manually assigning color and value to the binary code.
Oo69L TIL The massive ancient library of Ninevah (think: Mesopotamian equivalent of the library of Alexandria) was burnt by the Medes. Unlike a library containing organic documents, the fires treated the ~30,000 clay tablets and preserved the cuneiform text very well rather than destroying it.
E15Aw TIL the owner of Appommatox house fled there after First Manassas in order to escape the ravages of war...only to have the war end there thus being at the start and the end of the US Civil War.
7re5O TIL Emily Canellos-Simms held the world´s largest fine for an overdue library book at $345.14 which was checked out in 1955. The book was Days and Deeds. The library charged her 2 cents a day. She found the book 47 years later and presented the library with a check for her fine