• Archduke Ferdinand is Assassinated

    Archduke Franz Ferdinand, of Austria-Hungary, is assassinated by a Serbian man, Gavrilo Princip.
  • Austria-Hungary Declares War on Serbia

  • Germany Declares War on Russia

  • Belgium is Invaded by Germany

  • Germany Declares War on France

  • Great Britain Declares War on Germany

  • Austria-Hungary Declares War on Russia

  • Serbia Declares War on Germany

  • USA Declares War on Austria-Hungary

  • Great Britain Declares War on Germany

  • President Wilson Declares American Neutrality

  • Poison Gas is First Used Against Allies

  • Sinking of the Lusitania

  • Italy Declares War on Austria-Hungary

  • Italy Declares War on Germany

  • Germany Makes the Sussex Pledge

    The Sussex Pledge said that Germany would warn ships before attacking.
  • Millionsn of Soldiers Die at Somme River

  • Bolsheviks Overthrow the Russian Government

    Russia makes peace with Germany, and exits the war.
  • USA Declares War on Germany

  • American Troops Fight Three Battles

    The battles were, Belleau Wood, Argonne Forest, and Chateau-Thierry.
  • Central Powers Make a Truce with the Allies.

  • US Senate Rejects the Treaty of Versailles

  • Treaty of Versailles is Signed by Germany