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TIL during WW2, the US Navy had two freshwater aircraft carriers on the Great Lakes to train its pilots

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deEj TIL The Florida Public Service Commission gave Cape Canaveral the 321 area code as an homage to their launching spacecrafts. 3…2…1… Blastoff!
5YMVQ TIL the first female American astronaut Sally Ride was a respected astrophysicist and a top athlete. However, before her flight, she fielded questions such as "Will the flight affect your reproductive organs?", "Do you weep when things go wrong?" and "Will you become a mother?" from the US media.
9YKX6 TIL 165 victims of the atomic bombing of Hiroshima sought refuge in Nagasaki where they were bombed again 3 days later.
N7Vp1 TIL that Carmel, IN has replaced almost all of their traffic lights by roundabouts. This led to an estimated 40% decrease in all accidents and 90% in fatal ones, saving $180,000 because of lower maintenance cost and several thousands of gallons of gas per roundabout per year
78oYZ TIL Elvis’s promoter came up with and sold “I Hate Elvis” buttons. Therefore they both made money from Elvis haters too.