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TIL "SOS" doesn't stand for anything, it's just a distinguishable Morse code message. (Some backronyms have since been applied)

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R7LG8 TIL that the popular cautionary narrative of the native people of Rapa Nui (aka Easter Island) causing the social and ecological collapse of their island is false, and that the collapse happened AFTER European contact through the spread of disease and the kidnapping of islanders for slavery.
4XAk5 TIL that Disneyland has its own color called "Go Away Green"—a shade that's meant to help things blend in with the landscaping. Go Away Green is a gray-green (and kinda bluish) shade, tested and formulated to blend in well among almost anything: concrete, landscaping, the sky, you name it.
7r6nb TIL about the city of Rawabi. Meaning "the hills" in Arabic, Rawabi is the first planned city built for Palestinians.
XPlR TIL: That a Princeton study determined that America is no longer a Democracy, but rather an Oligarchy.
ADdgg TIL The Chicxulub asteroid impact that killed off the dinosaurs approximately 66 million years ago is theorized to have generated a megatsunami that reached 2.9 miles (4.6 km or 15,312 ft.) in height or more than 5.5x the height of the Burj Khalifa (2,722 ft.) out in the open ocean.