WWI

By Marc M.S
  • Assassination of Franz Ferdinand

    Assassination of Franz Ferdinand

    The heir to Austria-Hungary is killed in Sarajevo.
    This causes tensions between countries in Europe.
  • Austria-Hungary Declares War on Serbia

    Austria-Hungary Declares War on Serbia

    The war officially begins between European powers.
  • World Powers Join the War

    World Powers Join the War

    Germany, France, Russia, and the UK enter the conflict.
  • Battle of the Marne

    Battle of the Marne

    France and Britain stop Germany near Paris.
  • Poison Gas Used at Ypres

    Poison Gas Used at Ypres

    Germany uses poison gas for the first time in battle.
  • Sinking of the Lusitania

    Sinking of the Lusitania

    A German submarine sinks a ship with U.S. citizens on board.
  • Battles of Verdun and the Somme

    Battles of Verdun and the Somme

    Two of the deadliest battles of the war happen this year.
  • Zimmermann Telegram Intercepted

    Zimmermann Telegram Intercepted

    Germany’s secret offer to Mexico prompts U.S. outrage.
  • USA Joins the War

    USA Joins the War

    The United States declares war on Germany.
  • Russia Leaves the War

    Russia Leaves the War

    Russia signs peace with Germany after the revolution.
  • Treaty of Versailles Signed

    Treaty of Versailles Signed

    Germany accepts blame and pays reparations.
    This officially ends the war and reshapes Europe.