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    Benjamin Franklin

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    George Washington

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    John Adams

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    Thomas Jefferson

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    James Madison

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    Alexander Hamilton

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    James Monroe

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    Andrew Jackson

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    John Quincy Adams

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    William Henry Harrison

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    Martin Van Buren

  • Hot-air balloon Invented

    French Brothers Joseph-Michel Montgolfier and Jacques-Étienne Montgolfier make the first practical hot-air balloon.
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    Zachary Taylor

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    John Tyler

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    James Buchanan

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    James K. Polk

  • Battery Invented

    Italian Alessandro Volta makes the first battery (known as a Voltaic pile).
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    Millard Fillmore

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    Franklin Pierce

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    Abraham Lincoln

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    Ulysses S. Grant

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    Rutherford B. Hayes

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    Grover Cleveland

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    William McKinley

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    Woodrow Wilson

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    William Howard Taft

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    Theodore Roosevelt

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    Warren G. Harding

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    Calvin Coolidge

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    Herbert Hoover

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    Franklin D. Roosevelt

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    Harry S. Truman

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    Dwight D. Eisenhower

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    Lyndon B. Johnson

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    Ronald Regan

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    Gerald Ford

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    John F. Kennedy

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    George H W Bush

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    Jimmy Carter