1900-1920

  • McKinley's second inauguration.

    McKinley's second inauguration.
    McKinley's is shot by anarchist Leon Czolgosz in Buffalo, N.Y.
    He later dies from his wounds and is succeeded by his vice president, Theodore Roosevelt.
  • U.S. acquires Panama Canal Zone.

  • Theodore Roosevelt's second inauguration.

    Theodore Roosevelt's second inauguration.
  • Woodrow Wilson is inaugurated as the 28th president.

    Woodrow Wilson is inaugurated as the 28th president.
  • The Seventeenth Amendment

    The seventeenth Amendment to the Constitution is ratified, providing for the direct election of U.S. senators by popular vote rather than by the state legislatures.
  • First Long-Distance Telephone

    First long-distance telephone service, between New York and San Francisco, is demonstrated.
  • U.S purchases Danish West Indies

    The U.S. agrees to purchase Danish West Indies (Virgin Islands) for $25 million.
  • Jeannette Rankin

    Jeannette Rankin of Montana is the first woman elected to the U.S. House of Representatives.
  • World War I

    U.S. enters World War I, declaring war on Germany and Austria-Hungary.
  • Armistice ending World War I is signed.

  • League of Nations

    League of Nations meets for the first time, the United States is not represented.
  • The Eighteenth Amendment

    The eighteenth amendment to the Constitution is ratified, prohibiting the manufacture, sale, and transportation of liquor. It is later repealed by the Twenty-First Amendment in 1933.
  • The Nineteenth Amendment

    The Nineteenth Amendment to the Constitution is ratified, granting women the right to vote.
  • Treaty of Versailles

    Treaty of Versailles, outlining terms for peace at the end of World War I, is rejected by the Senate.