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TIL amniotic fluid of a mature fetus is predominantly fetal urine that is continually swallowed and reabsorbed through fetal tissue and GI tract into the bloodstream and then urinated out... over and over again

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b9xO4 TIL Alf's Imperial Army, a New Zealand organization devoted to "pacifist warfare". Members gather to battle using strictly non-harmful weapons, such as newspaper swords and cardboard shields.
8a8D4 TIL B.B. King performed an average of 200 shows per year up until his 70s, and in 1956 alone he appeared at 342 shows
W7O8X TIL that Jimmy Carter promised to release all government UFO information if he became president. However, after being elected, he chose not to, citing "national security concerns."
a68b TIL babies spontaneously dance when they hear music, and smile more when they hit the beat
OE6g TIL that a brain disease that devastated communities in Papua New Guinea spread because people ate their dead family members’ brains in ritual cannibalism. People who didn’t die from the disease have a genetic mutation that blocks it.