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Steam Engine
first successful steam engine in 1814. -
James Monroe became the president
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Cement
Joseph Aspdin was successful in creating a formula for cement that would change the way builders built. -
John Quincy Adams became president
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The type writer
The type writer allowed publishers to get their papers out. -
The Refridgerator
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Martin Van Buren became President
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Slavery Ended
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Andrew Johnson became president
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The Telephonen was created