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Archduke Franz Ferdinand heir to the throne of the Austro-Hungarian Empire, and his wife are assassinated in Sarajevo.
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Germany declares war on France.
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U-boat sinks the Lusitania. 1,198 civilians, including 128 Americans die.
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Tsar Nicholas takes command of the Russian armies.
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British conscription law goes into effect
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US President Wilson publicly warns Germany not to continue unrestricted submarine warfare policies
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Germany again declares unrestricted submarine warfare
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British capture Jerusalem from the Turks and her Arab allies.
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President Woodrow Wilson declares his 14 points as the path to permanent world peace.
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At eleven o'clock on the eleventh day of the eleventh month of 1918, the war ends as Germany and Allies sign an Armistice.