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TIL That the most polluted place on the planet is Lake Karachay, located near the Ural Mountains in Russia. In 1990, standing on the shore for 1 hour would give you a lethal radiation dose of 600 roentgen, more than enough to kill you.

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oBRNE TIL that Robert De Niro and Robin Williams were backup choices for Jack Nicholson to play Jack in “The Shining”
pZge TIL Cockroaches can make group decisions. When 50 cockroaches are presented with 3 shelters that can only house 40, they’ll split evenly into two groups and leave one shelter empty.
WkvbB TIL that Sweden allows hearsay as evidence in court. The country has very few restrictions on what evidence is allowed in court. It is up to the court to evaluate the reliability of the evidence presented.
XV68 TIL the fastest temperature drop in recorded history occurred in South Dakota in 1911. The temperature fell by 49°F in 15 minutes.
neZ4B TIL of Rebecca Fried, a high schooler who debunked a claim by historian Professor Richard Jenkins who claimed "No Irish Need Apply" signs never existed