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TIL until the 1980s all freight trains in the USA and Canada were required to have a caboose with a crew. They were replaced by the "end-of-train device" which detects and reports any problems to the engineer, ending an era in railway history.

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a8LYL TIL that when the 33-story Book-Cadillac Hotel opened on December 8, 1924, it became both Detroit's and the world's tallest hotel. The hotel was built by brothers J. Burgess, Frank, and Herbert Book, who were on a mission to turn Detroit's Washington Boulevard into the "Fifth Avenue of the West."
wooB1 TIL Frank Lloyd Wright's mistress and employees were hacked to death with an axe at their "Love Cottage"
d8Ojd TIL frozen pipes burst not because ice expands through the wall of the pipe, but because the expanding ice compresses water downpipe, building pressure until it bursts
a8ORb TIL in 1979 researcher John Merritt placed a photographic memory test in publications across the US. He estimated that roughly 1 million people took the test & of that number, 30 wrote in with the correct answer. However, when he visited 15 of them in their homes, not one could duplicate the feat.
X0J1r TIL Carne asada burrito and fries are both originated from San Diego, not Mexico.