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Assassination of Archduke Ferdinand
A Serbian nationalist assassinated the heir to the Austrian throne, Archduke Ferdinand -
Austria-Hungary declared war on Serbia
In retaliation for the assassination of their heir, Austria-Hungary declared war on Serbia, sparking World War 1 -
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Schliffen Plan
Germany invaded France through Belgium in the west and confronted Russia from the east -
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First Battle of the Marne
French and British forces confront the invading German army, driving the Germans to the north -
Sinking of the Lusitania
The British ship Lusitania was sunk by a German submarine, to the outrage of Americans -
The US Joins the War
Congress approved President Wilson's request for a declaration of war against Germany -
Russian Revolution
Russia overthrows its leader over the course of November 1917 and proceeds to drop out of World War 1 -
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Second Battle of the Marne
Turned the war in the Allie's favor -
Armistice of Germany
Germany was forced to seek Armistice on November 11, 1918 -
Treaty of Versailles
This Treaty attempted to make peace between all participants of WW1, but instead only succeeded in stirring up animosity between its writers and Germany