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TIL the state of Maryland used to have a colony in Africa named the Republic of Maryland. Also known by Maryland-in-Africa, the country merged into Liberia in 1857, becoming the present day Maryland County.

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B9ak TIL beaver teeth are orange because they are fortified with iron which makes them strong and cavity-resistant. Their teeth also continuously grow and self-sharpen.
YpJx7 TIL Infant simulator programs in high schools, intended to discourage teenage pregnancies, actually backfired.
DQ7me TIL after people are diagnosed with heart disease, less than 60 percent of all patients take a statin.
E1aGV TIL about the Mercury 13 - a group of women in the early 1960's that passed the same vigorous tests as male astronauts and was part of a privately funded project that aimed to send them to the moon
b9610 The founder and first leader of North Korea, Kim Il Sung, created the country's policy of juche or "self-reliance," which cut off North Korea economically and diplomatically from the rest of the world, even in times of great need, such as famines.