-
Archduke Franz Ferdinand Assassination
-
Emperor Franz Joseph declares war on Serbia
-
Germany mobilizes her armed forces and declares war on Russia
-
Germany declares war on France
-
Germany declares a submarine blockade of Great Britain
-
Allies begin nine-month battle for the Turkish peninsula of Gallipoli
-
U-boat sinks the Lusitania. 1,198 civilians, including 128 Americans die.
-
Germany responds to U.S anger
-
The longest battle of the war, the Battle of Verdun, is fought to a draw with an estimated one million casualties.
-
US President Wilson publicly warns Germany not to continue unrestricted submarine warfare policies
-
Reich Foreign Secretary Zimmermann's telegram to Mexico urging her entry into war against the United States is discovered and translated by the British.
-
Germany again declares unrestricted submarine warfare.
-
President Wilson asks Congress for a declaration of war with Imperial Germany.
-
The first wave of the American Expeditionary Force lands in France.
-
The new Russian government, represented by Leon Trotsky, signs an armistice with Germany.
-
President Woodrow Wilson declares his 14 points as the path to permanent world peace
-
Germans launch the first of five major offensives to win the war before American troops appear in the trenches. German advance is finally stopped in late June
-
Allied counter offensives on the Somme push the German army back and into retreat
-
Turks sign armistice
-
A German republic is founded
-
At eleven o'clock on the eleventh day of the eleventh month of 1918, the war ends as Germany and Allies sign an Armistice.
