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Archduke Ferdinand is assassinated
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Austria-Hungary declares war on Serbia
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Ottoman Empire declares war on the Allies
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Germany declares war on France and Russia
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Allies defeat the Germans at the First Battle
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Attack on the Lusitania
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British intercept Zimmerman telegram
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United States enters the war
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The Russians leave the War
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President Wilson issues his "Fourteen Points"
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Germany agrees to an armistice and fighting ends
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Treaty of Versailles is signed ending world war 1