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5 Cards in this Set
- Front
- Back
transcontinental railroad
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railroad that spanned the U.S. continent
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Great Plains
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the area from the Missouri River to the Rocky Mountains
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frontier
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parts of the West that were occupied mainly by Native Americans, rather than settlers
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solar time
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time based on calculations of the sun's passage across the sky
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standard time
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the time zones devised by railroad companies
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