1900-1920

  • Election of McKInley

    U.S. presidential election, 1900: William McKinley reelected president; Theodore Roosevelt elected vice president
  • McKinley Assassination, Roosevelt becomes President

    President McKinley assassinated, Vice President Roosevelt becomes the 26th President
  • US Steel

    U.S. Steel founded by John Pierpont Morgan
  • Roosevelt's full term

    Theodore Roosevelt elected president for full term; Charles W. Fairbanks elected vice president
  • Pure Food and Drug Act and Meat Inspection Act

    Acts passed to protect citizens from food poisoning.
  • FBI

    Federal Bureau of Investigation established
  • Presidency Election

    William Howard Taft elected president; James S. Sherman vice president.
  • Presidency

    Woodrow Wilson elected president, Thomas R. Marshall, vice president. Roosevelt becomes the only third party candidate to come in second for well over a century.
  • New Mexico and Arizona become states

  • 16th Amendment

    establishing an income tax.
  • End of Philippine-American War

  • World War 1

    World War 1 begins
  • Prohibition

    18th Amendment prohibiting the sale of alcohol.
  • 19th Amendment

    Woman's right to vote