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TIL of Argos, Odysseus’s dog in the works of Homer. After 20 years of waiting for Odysseus to return home, the dog is the only one to recognize him, he wags his tail and Odysseus sheds a tear, and Argos dies after meeting him one last time.

dDpQQ TIL an injured hiker survived 24 days in a mountain forest without food or water in what doctors believe is the first known case of a human going into hibernation. He slipped while walking down the mountain & broke his pelvis. When he was found, his body temperature had fallen to just 22°C (72°F).
OoRK4 TIL that in 1988 Space Shuttle Atlantis' heat tiles were damaged during liftoff (In a way very similar to the Columbia disaster) and the crew believed that upon re-entry they were going to die.
pYnv4 TIL According to English laws for co-production of movies, the majority of movies making over $50 million in UK Box Offices were UK productions.
p8orb TIL about an African American man who was shot by authorities during a protest in Boston. His name was Crispus Attucks, and he took two musket balls in the chest. First death of the American Revolution. Attucks was said to be exhibiting "mad behavior" and his shooters were acquitted.
v1x5K TIL that physicist Wallace Sabine was assigned the impossible task of fixing the sound quality of a poorly designed lecture hall. Despite having no background in acoustics, he discovered a relationship between chamber size, absorption surface and sound quality. Thus founding the field of acoustics.