1900-1920

  • Theodore Roosevelt becomes president

  • Roosevelt Corollary to Monroe Doctrine

    Roosevelt Corollary to Monroe Doctrine stated that the United States would intervene as a last resort to ensure that other nations fulfilled their obligations to international creditors.
  • Woodrow Wilson becomes president

  • The Beginning of the Federal Reserve System

  • World War I begins

  • The sinking of the Lusitania and the U.S. enters WWI

    The sinking of the Lusitania was the torpedoing and sinking of the passenger ship, Lusitania, by a German submarine during WWI.
  • Germany issues Sussex Pledge

    The Sussex Pledge agreed to give adequate warning before sinking merchant and passenger ships and to provide for the safety of passengers and crew
  • The Russian Revolution

    The Russian Revolution was a period of political and social revolution that took place in the former Russian Empire which began during the First World War
  • The Treaty of Versailles

    The Treaty of Versailles ended World War I
  • The 19th Amendment is added

    This gave women the right to vote