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TIL that old-fashioned (1930s) bar tenders wore arm-bands to adjust the lengths of their sleeves. In those days, most men’s shirts came ready made with a single length extra long sleeve.

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E1gGW TIL the most powerful commercial radio station ever was WLW (700KHz AM), which during certain times in the 1930s broadcasted 500kW radiated power. At night, it covered half the globe. Neighbors within the vicinity of the transmitter heard the audio in their pots, pans, and mattresses.
J1lQV TIL that the first Medal of Honor awarded by the U.S. Army was given to a group of Union soldiers who hijacked a Confederate train during the "Great Locomotive Chase" in 1862, a daring sabotage mission that became a pivotal moment in the Civil War.
R7998 TIl the Elo rating system, a method to calculate the relative skill level of players in different competitive games, originated from two player games such as chess and its creator Arpad Elo.
yQJdw TIL of the Blue People of Kentucky, carriers of a recessive genetic trait that that gives the sufferers blue skin tone. The the last known descendant was born in 1975.
AN75d TIL Australia is wider than the moon