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The Assassination of Archduke Franz Ferdinand
Bosnian Serb nationalist Gavrilo Princip assassinates Franz Ferdinand and his wife, Sophie the Duchess of Hohenburg. The Austrian Government suspects that Serbia is responsible. -
The Declaration of War
Austria-Hungary declares war on Serbia, World War I begins. -
When Australia Joined the War
When Australia joined the war, it caught most Australians by surprise even though there had been a climate for war for many years. -
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The First Battle of Ypres
The First Battle of Ypres was a battle of the First World War, fought on the Western Front around Ypres, in West Flanders, Belgium. -
The Battle of Gallipoli Begins
The Gallipoli campaign was a military campaign in the First World War that took place on the Gallipoli peninsula, -
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The Second Battle of Ypres
During the First World War, the Second Battle of Ypres was fought for control of the town of Ypres in western Belgium. -
The Sinking of the RMS Lusitania
The RMS Lusitania was a UK-registered ocean liner that was torpedoed by an Imperial German Navy U-boat during the First World War. -
The Battle of Gallipoli Ends
The battle of Gallipoli ends with the British government authorized the evacuation to begin from Suvla Bay on December 7; the last troops left Helles on January 9, 1916. -
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The Battle of the Somme
The Battle of Somme took place on both sides of the upper trenches of the Somme, a river in France, fought by the armies of the British Empire and the French Third Republic against the German Empire. -
The Zimmerman Telegram
The Zimmermann Telegram proposed a military alliance between Germany and Mexico if the United States entered World War I against Germany. -
The US Joining the War
On April 2, 1917, President Woodrow Wilson went before a joint session of Congress to request a declaration of war against Germany. The United States later declared war on German ally Austria-Hungary on December 7, 1917. -
Treaty of Brest Litovsk
The treaty was signed at German-controlled Brest-Litovsk, after two months of negotiations. -
The Treaty of Versailles
The Treaty of Versailles was the most important of the peace treaties that brought World War I to an end. The Treaty ended the state of war between Germany and the Allied Powers.