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assassination of archduke and wife
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. -
declare war
Austria-Hungary declares war on Russia and Serbia declares war on Germany. -
United States remains nuetral
U.S. President Woodrow Wilson announces the U.S. will remain neutral. -
trench warfare begins
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Blockade of goods created
The United Kingdom announces that the North Sea is a military area, effectively creating a blockade of goods into Germany. -
Christmas Truce :)
December 24 The unofficial Christmas truce is declared. -
Germany Declares warzone around Britain
Germany declares a "war zone" around Great Britain, essentially effecting a submarine blockade where even neutral merchant vessels were to be potential targets. -
poisen gas introduced
poisen gas WW1The Second Battle of Ypres begins. It is during this battle that the Germans first use poison gas. -
Third battle of ypres
people in the battleThe Battle of Passchendaele (also known as the Third Battle of Ypres) begins. -
Verdun-Bloodiest Battle
The Battle of Verdun begins. The Battle of Verdun was the longest battle of World War I and was one of the bloodiest. -
tanks introduced
The Battle of the Somme begins. During the Battle of the Somme, tanks are first introduced into battle. -
Russian Revolution
The Bolsheviks successfully overthrow the Russian government during the 1917 Russian Revolution. -
U.S. President Woodrow Wilson issues his Fourteen Points to peace.
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peace with central powers
Russia signs the Treaty of Brest Litovsk, which is a peace treaty between Russia and the Central Powers. -
The Treaty of Versailles officially ends WWI.