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TIL that the first full size radio-operated military drone was developed in 1935 in the form of the de Havilland DH-82B Queen Bee. Originally developed by the Royal Navy for target practice, it could take off and land without human operation and more than 400 were constructed.

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oBxeR TIL: In 1990, A British Airways pilot was sucked out of a cockpit window while at cruising altitude.
4XxQw TIL a network of centuries-old tunnels under the city of Puebla, Mexico, was considered an urban legend until they were dediscovered in 2015.
nW7nP TIL In order to work in the CIA cafeteria, a candidate needs to pass a Top Secret SCI background check.
kNog TIL Americans are as likely to believe in Bigfoot as the Big Bang Theory.
loaXA TIL Oregon was the only state admitted into the Union (year 1859) with an exclusion law written in its constitution, which forbade black people from living within its borders.