› added 13 years ago

116

TIL Canada and Spain almost fought a war against each other in … 1994

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YXxx TIL that early balloons were made from animal intestines.
D1AYJ TIL the conspiracy theory that US government created AIDS was part of Soviet propaganda to distract attention from its biological warfare program.
OkQa TIL that very soon, tooth decay can be fixed by electrically reversing the process to help teeth ‘remineralise’.
W7rAA TIL During the Great Depression, librarians rode on horseback sometimes for hundreds of miles, to deliver books to isolated communities in the Appalachian Mountains as part of the Pack Horse Library Project. They were often women and faced dangerous terrain and harsh weather.
jo1N TIL the “Overton Window” is political shorthand for pitching an outrageous idea first in order to make a less radical idea seem more appealing