World War 1

By breecote
  • Assassination of Austrian Archduke Ferdinand

    Assassination of Austrian Archduke Ferdinand

    Archduke Franz Ferdinand, heir to Austria-Hungary's throne, and his wife, Sophie, are assassinated by Serbian nationalist Gavrilo Princip while the couple were visiting Sarajevo, Bosnia.
  • Austria-Hungary declares war on Serbia.

    Austria-Hungary declares war on Serbia.

  • Germany declares war on Russia.

    Germany declares war on Russia.

  • Germany declares war on France.

    Germany declares war on France.

  • The United Kingdom declares war on Germany, after Germany invades Belgium.

    The United Kingdom declares war on Germany, after Germany invades Belgium.

  • Austria-Hungary declares war on Russia and Serbia declares war on Germany.

    Austria-Hungary declares war on Russia and Serbia declares war on Germany.

  • U.S. President Woodrow Wilson announces the U.S. will remain neutral.

    U.S. President Woodrow Wilson announces the U.S. will remain neutral.

  • Germany declares a "war zone" around Great Britain, essentially effecting a submarine blockade where even neutral merchant vessels were to be potential targets.

    Germany declares a "war zone" around Great Britain, essentially effecting a submarine blockade where even neutral merchant vessels were to be potential targets.

  • he British ocean liner RMS Lusitania is sunk by German U-boat, U-20

    he British ocean liner RMS Lusitania is sunk by German U-boat, U-20

  • German U Boat firing on the Frech ship, Sussex

    German U Boat firing on the Frech ship, Sussex

    Lead to Sussex pledge
  • Sussex Pledge

    Sussex Pledge

    Promised a change in Germany’s naval warfare policy. The primary elements of this undertaking were:
    1. Passenger ships would not be targeted;
    2. Merchant ships would not be sunk until the presence of weapons had been established, if necessary by a search of the ship;
    3. Merchant ships would not be sunk without provision for the safety of passengers and crew.
  • Germany sends the secret Zimmerman Telegram to Mexico in an effort to entice Mexico to join the war. The British intercept and decipher the coded message.

    Germany sends the secret Zimmerman Telegram to Mexico in an effort to entice Mexico to join the war. The British intercept and decipher the coded message.

  • The United States declares war on Germany.

    The United States declares war on Germany.

  • Russia signs the Treaty of Brest Litovsk, which is a peace treaty between Russia and the Central Powers.

    Russia signs the Treaty of Brest Litovsk, which is a peace treaty between Russia and the Central Powers.

    This affected the Allies on the Western Front because they had to find a new way to get to battle because they usually fought on the Western Front.

  • Germany signs the armistice at Compiegne, France. Fighting ends on the 11th hour of the 11th day of the 11th month (i.e. 11 a.m. on November 11).

  • The Treaty of Versailles officially ends World War 1.

    The Treaty of Versailles officially ends World War 1.