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Murder in Sarajevo
June 28, 1914 assassination of Archduke Francesco Ferdinando and his wife Sophie in Sarajevo
Chain reactions: Austria declares to Serbia, Germany to Russia and then to France. Germany violates Belgian neutrality. Britain declares war on Germany. -
Battle of the Marne
August 6, 1914 Germans occupy neutral Belgium to enter France. Battle of the Marne. The French push back the Germans. -
Great Britain at war
August 4 Britain declares war on Germany. -
Period: to
First phase of the war
June-September 1914. First phase of the war -
May 1915. Sunk American submarine
May 1915. German submarine sinks British passenger ship Lusitania. More than a thousand dead, including 128 Americans. US President Wilson sends diplomatic protests to Germany. -
1915 second year of the war
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Italy at war
May 24, 1915. Italy declares war on Austria -
February - December 1916. Battle of Verdun
Battle of Verdun between the French and the Germans. The longest and bloodiest battle of the 1st World War. It cost huge human losses on both sides -
Battle of the Somme.
1 July-18 November 1916. Battle of the Somme. The bloodiest of the First World War fought by the armies of the British Empire and the French Third Republic against the German Empire, with the aim of accelerating a victory for the Allies -
Period: to
1916. Third year of the war
Verdun and Somme: the most enduring and bloody battles of the 1st World War -
USA at war
April 6, 1917. USA goes to war on the side of Great Britain -
Russian revolution
1917 The Bolsheviks take power in Russia -
Defeat of Caporetto
24 October 1917. Clash between the Austro-Hungarian and Italian armies. Defeat of the Italian army in Caporetto -
Period: to
1917. 4th year of war
USA at war -
January 1918. US troops land in Europe
Europe is about to be liberated by allied troops -
January 1918 "14 points" Wilson
The American President Wilson proposes "Fourteen points" to elaborate the peace treaty and prevent future wars and a plan to create the League of Nations in order to resolve the international disputes to which the United States does not adhere. -
End of war
November 11, 1918, Germany signs the surrender. End of the 1st World War -
Period: to
1918. Last year of war
Allied troops in Europe, 14 Wilson points, German surrender and end of war -
June 28, 1919 Peace treaty in Versailles
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April 28, 1019 the League of Nations is born
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Period: to
Peace treaties