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TIL astronomer Galileo Galilei thought Saturn’s rings were arms

Read more attic.gsfc.nasa.gov

via reddit.com

kJgkB TIL before the battle of Marathon, Athenians vowed to sacrifice a goat for every Persian slain. After recording 6,400 enemy deaths, they couldn’t offer so many at once, so they sacrificed 500 goats annually to Artemis Agrotera until the vow was fulfilled.
PV8L TIL that dinosaur feathers aren’t just visually apparent in fossils, but have actually been found preserved in amber.
oBrZ7 TIL Angkor Wat actually used a much greater amount of stone than every one of the Egyptian pyramids combined. On top of that, if also occupied a surface area greater than Paris in its entirety
8eaQa TIL The first powered flight was achieved by the Giffard dirigible, which on 1852 flew 17 miles in around 3 hours. It was steam powered
Y7mOG TIL that the Seminole Tribe did not exist prior to the 1700s. It was formed in Spanish Florida by members of other tribes who were displaced out of the English colonies by settlers. Florida's original indigenous population was extinct by then from disease and enslavement brought by the Spanish.