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The Archduke Franz Ferdinand was assassination sparking the beginning of the first World War.
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Austria-Hungary blamed Serbia for the Assassination of the Archduke.
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The Germans use poison gas for the first time.
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The germans sank the Lusitania.
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Wilson reelects and keeps america out the war.
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The germans want Mexico to invade america.
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U.S Declares war on Germany
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World War II ends.
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It was the Treaty that ended the war.