World History

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

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Who was Australia's Prime Minister at the time of the Japanese attack on Pearl Harbor?
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What court was established by the Pope in 1233?
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What country has historically been an area of conflict because of it's flat terrain?
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Which one of these inventions or discoveries came first?
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In what year did Australia celebrate its bicentenary?
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Which crop was first smuggled by Dutch sailors in 1690?
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Former Prime Minister of Canada, Paul Martin, took office on what date?
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What country did Saladin rule?
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