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TIL the term “3 dog night” refers to a night so cold you needed to sleep with 3 dogs in your bed to keep warm

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kkQ7 TIL Apollo 15’s crew left a plaque on the Moon commemorating both American astronauts and Russian cosmonauts who had died for space exploration
wonD7 TIL a 20-yr-old man died 10 hrs after eating unrefrigerated, 5-day-old spaghetti with tomato sauce that he had reheated at school. His autopsy highlighted the importance of refrigerating food: the warmer temp allowed bacteria in the pasta to grow & produce a toxin that contributed to his death.
xDGg TIL that in at least one naval battle, Hannibal of Carthage had clay pots filled with venomous snakes and instructed his sailors to throw them onto the decks of enemy ships.
jEMj TIL in the real story of Mulan, after she is given leave from the army, she is summoned back to the palace to be the khan’s concubine(a sex-slave). Rather than suffer this fate, she committed suicide.
4akX TIL that knots as a unit of measuring speed came ships throwing overboard a line with a board attached and counting how many knots passed through their fingers in 30 seconds.