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Franz Ferdinand Assassination
The assassination of the Archduke of Austria caused the beginning of World War I -
Austria-Hungary declares war on Serbia
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First use of gas as a weapon by the Germans
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Sinking of the Lusitansia
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Wilson reelected; pledged american neutrality
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Zimmermann Note
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U.S Declares war
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Bolshevicks led by Lenin overthrown russian goverment
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War Ends
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Treaty of Versailles