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Archduke Franz Fredinard of Austria-Hungry was assassinated in Sarajevo by a Serbian Activist named Gavrilo Proncip.
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Germany mobilizes their armed forces and declares was on Russia.
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Germany declares war on France.
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Germany invades neutral Belgium, as the sencond step on the Schlieffen plan.
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U-Boats sinks the Lusitania. 1,198 civilians, including 128 Americans.
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1 million casualties and no breakthrough for Allies. Tanks were introduced to the war.
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Woodrow Wilson re-elected as President of the U.S. With campaign slogan saying, "He kept us out of the war."
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Foreign Secretary Zimmermann's telegram to Mexico incouraging their entry into war against the United States is discovered and translated by the British.
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The U.S passes Selective Service Act allowing the U.S to draft men to the army.
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Germans on the banks of the Marine near Paris are stopped by American Forces.
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At eleven o'clock on the eleventh day of the eleventh month of 1918 the wae ends.