World War I

Assasination of the Archduke in Serbia.

Jun 28, 1914

Archduke Franz Ferdinand heir to the throne of the Austro-Hungarian Empire, and his wife are assassinated in Sarajevo.

World War I

Period: Jun 28, 1914 to Nov 11, 1919

Declare War

Jul 28, 1914

Emperor Franz Joseph of Austria-Hungary declares war on Serbia.

Submarine blockade.

Feb 4, 1915

Germany declares a submarine blockade of Great Britain. Any ship approaching England is considered a legitimate target.

The sinking of Lusitania.

May 7, 1915

U-boat sinks the Lusitania. 1,198 civilians, including 128 Americans die.

US Warns Germany.

Apr 19, 1916

US President Wilson publicly warns Germany not to continue unrestricted submarine warfare policies.

Re-elected

Nov 7, 1916

Woodrow Wilson re-elected President of the United States with campaign slogan: "He kept us out of the war."

Zimmermann's telegram.

Jan 19, 1917

Reich Foreign Secretary Zimmermann's telegram to Mexico urging her entry into war against the United States is discovered and translated by the British.

American Expenitionary Force

Jul 3, 1917

The first wave of the American Expeditionary Force lands in France.

Allied counter offensives.

Aug 8, 1918

Allied counter offensives on the Somme push the German army back and into retreat.

War ends.

Nov 11, 1918

At eleven o'clock on the eleventh day of the eleventh month of 1918, the war ends as Germany and Allies sign an Armistice.