World War I Timeline

  • Assassination of Franz Ferdinand

    Assassination of Franz Ferdinand
    A teenage Serbian nationalist killed Archduke Franz Ferdinand and his wife, Sophie, as they rode down the streets
  • Great War Begins

    Great War Begins
    World War 1 begins because of the assassination of Franz Ferdinand, the archduke of Austria-Hungary.
  • Kaiser declares “open season” on ships

    Kaiser declares “open season” on ships
    Kaiser Wilhelm announces proclaims that the North Sea is a war zone and that any ship could be sunk without warning
  • Lusitania sank

    Lusitania sank
    The Lusitania was torpedoed without warning by a German submarine off the south coast of Ireland.
  • Battle of the Somme

    Battle of the Somme
    also known as the Somme Offensive, one of the largest battles of WW1 fought ear the Somme River in France, it wasone of the bloodiest military battles in history
  • Wilson re-elected

    Wilson re-elected
    Wilson defeated Charles Evans Hughes in the 1916 Presidential Election because he kept America out of war
  • Zimmerman note intercepted

    Zimmerman note intercepted
    A note made by Zimmerman to Mexico that was trying to create an ally saying that Mexico would back up Germany in any US-German conflicts but was intercepted by the British
  • US declares war on Germany

    US declares war on Germany
    US declares war on Germany after the ZImmerman message was discovered planning attack on US
  • Selective Service Act

    Selective Service Act
    Authorized the federal government to raise a national army for the American entry into World War I through the compulsory enlistment of people.
  • Convoy system

    Convoy system
    a group of ships sailing together for mutual security and protection
  • Espionage Age passed

    Espionage Age passed
    Made it a crime for any person to share information that messed with the U.S. armed forces prosecution of the war effort or to promote the success of the country’s enemies.
  • Russia pulls out of the war

    Russia pulls out of the war
    A group of Communists led by Vladimir Lenin, the Bolsheviks, overthrew the government and created a Communist government. Lenin wanted to concentrate on building up a communist state and wanted to pull Russia out of the war.
  • Flu Epidemic

    Flu Epidemic
    Swept the world in 1918 killed almost 50 million people. Within months, it had killed more people than any other illness in recorded history.
  • Fourteen Points speech

    Fourteen Points speech
    A statement of principles for world peace that was to be used for peace negotiations in order to end World War by Woodrow Wilson
  • Sedition Act passed

    Sedition Act passed
    extended the Espionage Act of 1917 to cover a broader range of offenses
  • Germany signs armistice

    Germany signs armistice
    An armistice during the First World War between the Allies and Germany. the agreement that ended the fighting on the Western Front.