World History

What object, which debuted in 1949, is sometimes called a "45"?

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What year did Khrushchev become premier of the U.S.S.R.?
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When did the U.S. sign the Oregon Treaty with the British?
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What factor most helped Rome grow into an important civilization?
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Which ancient people first mined and smelted copper circa 5000 B.C.?
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The Six-Day Arab-Israeli War was held in what year?
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What civilization had an enormous empire in South America before the Spanish conquest in 1532 A.D.?
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What disease swept through London, closing down all playhouses from 1592 to 1594?
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What country was da Gama from?
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