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TIL cashews are in the same family as poison ivy and they cannot be sold in their shells because they can cause a similar itchy skin reaction due to a chemical called urushiol

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b9Bxa TIL Nazi spies tried infiltrating Russia in WW2 using fake passports; the passports were recognized as fraud because Russian passports use iron staples that stain the pages with rust, while Nazis used steel. During the Cold War, American spies made the same mistake
k8dB TIL that the oldest living person in the world smoked cigarettes from ages 21-117. She lived to be 122.
KxVw TIL In 2015, Dan Price, CEO of Gravity Payments (a credit card processing company), caused an uproar by paying his employees a minimum salary of $70k. He has been called everything from a socialist to a hero to a crusader.
8ewGK TIL metal tube, invented in 1732, is what measures the speed of supersonic jets, all other airplanes, boats and even F1 race cars.
4kAXX TIL Rwanda's Akagera national park is the largest protected wetland in Africa and safari destination with elephants, lions. But in 1997 it was reduced in size by close to 50% as the land was allocated to populations returning after the 1994 genocide