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Franz Ferdinand Assassination
The assassination sparked 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 Lusitania
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Wilson is reelected as President; Pledged American neutrality
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Zimmermann Note
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US declares war
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Bolsheviks, led by Vladimir Lenin, overthrow the Russian government
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War ends
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Treaty of Versaillies