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TIL Mallory is traditionally a surname, not a given name. Also, it didn't start to be used for girls until 1982, when the character of Mallory Keaton appeared on Family Ties.

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oRBGE TIL The Blue Angels, the U.S. Flight Navy Demonstration Squadron, formed in April 1946 as the Navy Flight Exhibition Team. They changed their name after seeing the New York nightclub, The Blue Angel. The team was first introduced as the Blue Angels during an air show in July 1946.
j6PKv TIL the floating substance inside of a lava lamp is primarily wax
xVw90 TIL that Sultans of the Ottoman Empire immediately executed all their brothers as soon as they took the throne. One Sultan, Mehmed III, had all 19 of his brothers executed and buried alongside their father
vPjVr TIL metal tube invented in 1732 is what measures the speed of supersonic jets (and any other airplane, boat, or even F1 car). Called a pitot tube, it measures airspeed by measuring air pressure. More information at the link.
690rJ TIL The music from the toothless dancing meme is from the Pokémon white game.