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TIL most modern handheld devices like iPhones contain a mineral called “coltan” that is being produced as a commodity by slaves exploited by rebel armies in the Congo.

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epNyJ TIL: There was a Democratic-Republican Party in the USA founded in 1792
neOwY TIL that whales have inverted nipples and produce milk so fatty it has the same texture as toothpaste.
yjBe TIL early humans literally ran their prey to death
Oo1a4 TIL in the United States, Divorce used to only be granted by the Governments and in 1823 Congress debated whether John Wheelwright could divorce his wife on grounds of insanity. The Senate voted No.
JYwx4 TIL About the rarest blood on Earth. In 49 years, Rh-null has only been known in 43 or so people around the world.