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TIL the U-shaped toilet seats found in public restrooms were originally designed "to give ladies plenty of room to wipe without having to stand up or touch the seat directly."

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x61Vg TIL Miami has an underwater graveyard, Neptune Memorial Reef. Cremated remains are mixed with concrete and formed into sculptures, with a copper plate marking each sculpture, so that family can dive and know where to visit their loved one’s specific resting place
eaw6 TIL President Herbert Hoover and his wife Lou were fluent in Mandarin Chinese. During their years in the White House, they would often hold entire conversations in Chinese to prevent the staff and acquaintances from hearing what they were saying.
BgppW TIL the TRAPPIST-1 system hosts 7 identified exoplanets and 3 of them (TRAPPIST-1e, TRAPPIST-f, TRAPPIST-g) are Earth-sized and within the solar system's habitable zone
lopgN TIL that flies, particularly fruit flies, are more attracted to vinegar.
d8GLK TIL that Cosmonauts used to bring a triple barreled pistol on space missions, mainly for the purpose of defending against Siberian wildlife. It fired both Shotgun and AK-74 ammunition.