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Nat Turner was born in 1800 in Virginia in America. He was a slave and...
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It can never be proved, but it is a safe assumption that the first time...
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We are in a village somewhere in southern Africa a few hundred years ago. All...
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The number of atoms disintegrated per second at any instant is directly proportional to the...
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Today the Ku Klux Klan has between three and five thousand members in the U.S.A.,...
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Archimedes is one of the most famous mathematicians of all time and, perhaps, the first...
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Every day on Polish radio, there is a recording of a trumpeter warning a city...
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