U.S. Geography

In which U.S. state includes the cities of Columbus, Cleveland, Cincinnati and Dayton?

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What are the state bird and state tree of Michigan?
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Geologically speaking, what are the Hawaiian islands?
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What Nebraska landmark was most often mentioned in journal entries by travelers on the Oregon Trail?
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What are the state bird and state tree of Pennsylvania?
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Who did Chicago Mayor Richard M. Daley replace?
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Nebraska was once called the "Great American" what?
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What movement swept Alabama in 1915, five years before the rest of the U.S.?
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Which state is known as "The Old Line State"?
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