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TIL about Leo Marks, WW2 cryptographer, who was given a 20 minute training exercise on his first day at work which took him the whole day to complete. He had accidentally not been given the cipher key and ended up breaking a code that was meant to be secure.

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D14oJ TIL, a small triangle in NYC about 27x25x27 inches was not accounted for in an eminent domain seizure in 1914. The owner installed a small mosaic which said "PROPERTY OF THE HESS ESTATE WHICH HAS NEVER BEEN DEDICATED FOR PUBLIC PURPOSES." It is still there today.
nW7r TIL 61 yo Cliff Young ran an ultramarathon and broke the record by two days. He had no formal training, ran with no sleep, and beat sponsored, young athletes. He remarked that the race “wasn’t easy.”
4X9E6 TIL that Rolling Stone Magazine published a 6-page article of future stand-up comic Bert Kreischer while he was attending Florida State University. The article, naming him the top partyer at the nation’s number one party school, became the inspiration for National Lampoon’s Van Wilder.
jp5X TIL That scientists have discovered how to temporarily induce Rain-Man like skills in normal people by stimulating parts of the brain with magnetic pulses.
yVlx8 TIL the net worth of Saudi Arabia's royal family, estimated at $1.4 trillion, is approximately 16 times greater than that of the British royal family, which has a net worth of $88 billion.