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invention of mechanical reaper
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john d rockfeller created his an oil company
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beginning of the civil war
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Home Stead Act
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end of the civil war
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Chinese workers helped build the transcontinental railroad
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old immigration ended
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j.p Morgan became a robber baron in banking
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Alexander Graham bell invented the telephone
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Cornelius Vanderbilt became a railroad tycoon
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Thomas Edison invented the light bulb
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urbanization began in america
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Andrew Carnegie created a steel company
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immigration restriction act passed
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The wright brothers invented the airplane
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Henry Ford developed the assembly line
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new immigration ended
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first subway system created
