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TIL That every 13 -17 years, billions of Cicadas emerge from the ground to mate. Once the Cicadas have transformed and predators leave the swarms alone, the males lay eggs. After a few days, they all die and disappear for another 13 - 17 years.

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vP1K4 TIL about the “Retail Apocalypse” - the closing of numerous large-chain retail stores worldwide, starting around 2010 and continuing onward.
yQxdV TIL that Yellow River (Huang He) in China had shifted its course in 1855 when the river breaches its northern levees, causing the river mouth to be shifted hundreds of kilometres, from Yellow Sea south of Shandong Peninsula, to Bohai Sea, north of Shandong Peninsula.
PY5mO TIL that Charles Lindbergh was awarded the Congressional Medal of Honor
VB7e0 TIL in a 1977 Speech in Warsaw, U.S. President Jimmy Carter's translator mistranslated several remarks, stating that President Carter had abandonded the U.S never to return, and that he wished to get to know the Polish people 'carnally'.
epOEL TIL that Although they are languages from different cultures, Icelandic (spoken in Iceland) and Bengali (spoken in Bangladesh and India) are part of the same family (Indo-European).