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TIL: The Soviet K-429 nuclear submarine sunk twice and than became a training sub

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j6Krn TIL A Japanese Train driver killed himself over 50 seconds delay
KOpBG TIL that 18th century France developed a visual telegraph system. Using a series of towers topped with adjustable beams that would display a message and instructions on the next tower to relay it to, messages could be sent across the country in a mere matter of hours, long before electricity.
P1Jje TIL of English lawyer Frederic Weatherly (1848–1929), who inadvertently created the coxless fours in rowing by jumping out of the boat at the start of the race to save weight. Oh, yeah, and he also wrote about 3,000 song lyrics, including "Danny Boy".
jvNX TIL of Sara Forbes Bonetta, a West African who was orphaned, sold into slavery, and in a remarkable twist of events, was liberated from enslavement and became a goddaughter to Queen Victoria.
dDpo7 TIL it costs the US government 3.69 cents to make a penny. The cost to make a nickel is 13.78 cents.