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TIL starting from second crusade many in Christendom believed in a powerful Indian Christian King named Prestor John who was about to come with his powerful army from east to crush the muslim armies.

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kOkOB TIL that Guinea worm disease (Dracunculiasis) is likely to be the first parasitic disease to be globally eradicated, and that treatment by slowly extracting the nematode by wrapping it around a stick hasn't fundamentally changed since at least 1550 BCE as described in an Egyptian medical papyrus
NyYe TIL China’s Emperor Qin sent his magician to find the elixir of life. The magician sailed away with the “sacrifice” of 6000 boys and girls, lots of wheat, and never returned. Some believe that he settled in Japan and became their first emperor.
4RaJ TIL in 1981, Ronald Reagan fired 11,345 air traffic controllers after they refused to end their strike and subsequently banned them from federal service for life.
QMKE TIL Scientists are working on a “GPS” that works in space. It uses x-ray’s emitted by pulsars to get a position anywhere, accurate to 5km. Its called XNAV.
7r1VP TIL about the reason of 'Florida Man'