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TIL During WW II the US Army was aware that mail to soldiers was critical for morale, but overwhelmed with the volume and space it took to ship. So the resuscitated a British/Eastman Kodak method where every letter was photographed, and the film was shipped, then printed. It was called V Mail.

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oRxB8 TIL that the earliest form of sushi, known as narezushi, was made by fermenting fish with rice and salt for preservation. It wasn't until the 19th century that the sushi we know today, such as nigiri sushi, was invented by a Tokyo-based chef named Hanaya Yohei.
aw6X9 TIL that the city of Detroit has its own local currency, fully backed by U.S. currency. It's printed in $3 bills and features the Spirit of Detroit over the Detroit Skyline.
Lk0WP TIL that the street in front of the U.S. Embassy in Bucharest was named in honor of Liviu Librescu, Romanian–American scientist and engineer. A prominent academic in addition to being a survivor of the Holocaust, he is renown for his heroism during the 2007 Virginia Tech Shooting.
mExP TIL that Winston Churchill, after being told that he could not drink in front of Saudi King due to the King’s religious beliefs, said “my religion prescribed an absolute sacred rite smoking cigars and drinking alcohol before, after, and if need be during all meals and the intervals between them.”
BgxLL TIL that some tribes in Ethiopia view pregnant women as "corrupted by evil sprits." When the mothers are about to go into labour, they are sent out into the wilderness alone to deliver their own child in order to purify themselves