World History

Which Ancient Mexican civilization developed a symbol for "zero"?

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The "Baker Rifle" was developed and used during which military action?
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Which king rebuilt Babylon and constructed the Hanging Gardens of Babylon?
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Former Prime Minister of Canada, Paul Martin, took office on what date?
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What was the name of Alexander the Great's horse?
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Which volcano erupted from January 18-21, 1951, causing over 3,000 deaths?
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What year did the flat-disk phonograph get introduced?
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What prion disease broke out in Britain in 1996, leading to widespread concern?
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What year did Soviet forces leave Afghanistan?
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