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TIL the Inuit were colonizers from Siberia that by 1300 AD had completely annihilated the native Dorset tribes.

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grnGy TIL Luke Helder, who in 2002 planted pipe bombs in various places to draw a smiley face across America, is still being held indefinitely at a federal mental health facility after being declared incompetent to stand trial
e0awg TIL that there is a new state of matter that exists and it is known as time crystals. These lab-created time crystals are structures that repeat periodically in time rather than space.
Wk85L TIL that tourists to North Korea are not allowed to use the local currency (the North Korean won), and instead must use a special debit card tied to foreign currencies.
BJKb TIL The first circus elephant in the United States (and possibly the first elephant brought to the US) was shot and killed by a religious fanatic who thought it was sinful for people to pay to see an animal.
D1ALj TIL that the hottest thing in the known universe is actually on Earth: the Large Hadron Collider can reach temperatures of 4 trillion Kelvin.