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Austrian Archduke Francis Ferdinand Assassinated
The murder of Archduke Franz Ferdinand outraged Austria-Hungary. Austria-Hungary became furious and with Germany's support, they declared war on Serbia. Within days, Germany declared war on Russia which was Serbia's ally and invaded Belgium, which then caused Britain to declare war on Germany. -
World War 1
was known at the time as the Great War, and (in the United States) the European War. World War I is known for the extensive system of trenches from which men of both sides fought. -
First Battle of Marne
was an offensive during World War I by the French army and the British Expeditionary Force against the advancing Germans who had invaded Belgium. -
First use of poison gas by Germans
German forces shock Allied soldiers along the western front by firing more than 150 tons of lethal chlorine gas against two French colonial divisions at Ypres, Belgium. -
Lusitania Sink
the British ocean liner Lusitania is torpedoed without warning by a German submarine off the south coast of Ireland. -
Period: to
Battle of Verdun
World War I engagement in which the French repulsed a major German offensive. It was one of the longest, bloodiest, and most-ferocious battles of the war -
Russia Revolution
was a period of political and social revolution across the territory of the Russian Empire, -
United States declares War
The United States later declared war on German ally Austria-Hungary. -
Russia Leaves war
Lenin wanted to concentrate on building up a communist state and wanted to pull Russia out of the war -
Period: to
Hundred Days Offensive
The Hundred Days Offensive was a series of massive Allied offensives which ended the First World War. -
Germany signs armstice
the armistice signed at Le Francport near Compiègne that ended fighting on land, sea, and air in World War I between the Allies and their opponent, Germany.
