Royal irish rifles in a trench in the battle of the somme during world war i

World War I

By WilliamC

  • Franz Ferdinand Assassination

    Franz Ferdinand Assassination
    The assassination of the Archduke of Austria-Hungary caused the beginning of World War I

  • Austria-Hungary declares war on Serbia

    Austria-Hungary declares war on Serbia
    After the assassination of Archduke Franz Ferdinand and his wife Austria-Hungary urged the government to declare war on Serbia, starting WWI.

  • First Use of Gas as a Weapon by the Germans

    First Use of Gas as a Weapon by the Germans
    German forces shocked French troops in Ypres, Belgium when they began firing 150 tons of chlorine gas.

  • Sinking of the Lusitania

    Sinking of the Lusitania
    On May 7, 1915 a German U-Boat torpedoed the RMS Lusitania which led to its sinking. 1198 people were killed, and this disaster is one main reason U.S. got int he war.

  • Wilson reelected; pledged American Neutrality

    Wilson reelected; pledged American Neutrality
    When wilson was reelected in November he pledged America would stay neutral.

  • Zimmerman Note

    Zimmerman Note
    The Zimmerman Note is a note sent by Arthur Zimmerman asking Mexico that if U.S. entered the war that they would attack the U.S.

  • U.S. declares war

    U.S. declares war
    On April 2,1917 U.s. declares war on Germany after the U-Boat Attacks and Zimmerman Note.

  • Bolshevicks led by Vladimir Lenin overthrow Russian government

    Bolshevicks led by Vladimir Lenin overthrow Russian government
    Vladimir Lenin overthrow the Russian government and set up a Provisional Government, that decides to pull out of the war.

  • War ends

    War ends
    After Germany agrees to all of U.S.' terms the war is officially over.

  • Treaty of Versailles

    Treaty of Versailles