world war 1

  • Archduke Francis Ferdinand is assassinated.

    Archduke Francis Ferdinand is assassinated.
  • Austria-Hungary declares war on Serbia, beginning World War I.

    Austria-Hungary declares war on Serbia, beginning World War I.
  • Austria-Hungary invades Russia.

    Austria-Hungary invades Russia.
  • Allied forces halt German advance into France during First Battle of the Marne.

    Allied forces halt German advance into France during First Battle of the Marne.
  • Allied forces land on the Gallipoli Peninsula of the Ottoman Empire.

    Allied forces land on the Gallipoli Peninsula of the Ottoman Empire.
  • German submarine sinks the passenger liner Lusitania during crossing from New York to Liverpool, England, killing 128 Americans.

    German submarine sinks the passenger liner Lusitania during crossing from New York to Liverpool, England, killing 128 Americans.
  • Italy declares war on Austria-Hungary.

    Italy declares war on Austria-Hungary.
  • Germany begins the attack on Verdun.

    Germany begins the attack on Verdun.
  • Allied offensive begins the Battle of the Somme.

    Allied offensive begins the Battle of the Somme.
  • Battle of Verdun ends

    Battle of Verdun ends
    550,000 French and 450,000 German casualties.
  • The United States declares war on Germany.

    The United States declares war on Germany.
  • Russia signs armistice with Germany.

    Russia signs armistice with Germany.
  • Russia signs the Treaty of Brest-Litovsk with Germany.

    Russia signs the Treaty of Brest-Litovsk with Germany.
  • Germany begins its final offensive of the war.

    Germany begins its final offensive of the war.
  • Allied forces begin the attack at Meusse-Argonne, the final offensive of the war.

    Allied forces begin the attack at Meusse-Argonne, the final offensive of the war.
  • End of War

    End of War
    Germany signs the Armistice at Compiègne, ending World War I.