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TIL that the age old grammatical ‘rule’ that sentences can not end in prepositions is actually a myth. It began with 17th century writers trying to make English more like Latin, which uses that as a strict rule.

Y7GWA TIL about Fregoli Delusion, which causes people to believe that different people they encounter are actually the same person in disguise.
QNB4p TIL a place from the middle of a tectonic plate can end up in the middle of another. Cratons are pieces of light continental crust that have never sunk into the earth to be recycled. The rock around the cratons sink and grow, and the cratons can break and stick to another plate, making this possible
jaQN TIL that the word “Sioux” is not actually a word. It is a partial word from “Nadowessioux” which is an insult that means “little snakes.” The tribes associated with this nomenclature are actually the Dakota, the Lakota, and the Nakota.
b96YZ The rise of Genghis Khan and the Mongolian empire was responsible for the annihilation of an estimated 40 million people, but there were clearly more than a few conquests off the battlefield as well. A 2003 study suggests that 1 in 200 men are direct descendants of Genghis Khan. Studies of Y-chromosome data found that almost 8 percent of men living in the former Mongolian empire carry nearly identical Y chromosomes. Researchers believe this is attributed to a unique set of social selection circumstances put into play by the spread of the Mongolian empire. In this week’s "Today I Learned," research scientist Albert Lin elaborates on Genghis Khan as a romantic.
MemWm TIL that there is a hispanic national anthem called Nuestro Himno, which is a remix of the star spangled banner.