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invention of the mechanical reaper
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jp morgan became a robber baron in banking
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andrew carnegie create steel company
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homestead act
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john d rockefeller created his an oil company
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old immigrants ended
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beginning of the civil war
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end of the civil war
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chinese workers helped build transcontinental railroad
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alexander graham bell invented the telephone
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thomas edison invented the lightbulb
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chinese exclusion act passed
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ellis island opened
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cornelius vanderbilt became a railroad tycoon
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immigration restriction act passed
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the wright brothers invented plane
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first subway system created
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urbanization began in america
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henry ford develop the assembly line
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new immigrants ended
