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Kaiser declares “open season” on ships
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Assassination of Franz Ferdinand
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Great War begins
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Lusitania sank
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Battle of Somme
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Wilson re-elected
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Zimmerman note intercepted
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US declares war on Germany
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Selective Service Act -
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Espionage Age passed
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Russia pulls out of the war -
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Fourteen Points speech
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Flu Epidemic
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Sedition Act passed -
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Convoy system
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Germany signs armistice
