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Archduke Franz Ferdinand of Austria and his wife, Sophie, are assassinated by a Bosnian Serb nationalist in Sarajevo.
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WWI begins when Austria-Hungary declares war on Serbia.
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August 1-28, 1914: Germany declares war on Russia, France, and Belgium. Britain declares war on Germany. Austria declares war on Russia. Montenegro declares war on Austria. France declares war on Austria. Britain declares war on Austria. Montenegro declares war on Germany. Japan declares war on Germany. Austria declares war on Belgium.
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The British ship 'Lusitania' is sunk by German U-Boats. U.S. citizens were among passengers that died.
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Britain and German fleets met for the war’s major encounter between the world’s two largest sea powers.
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Tsar Nicholas II abdicates the throne after a week of riots in the Russian capital of St. Petersburg.
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The U.S. joins, as they declare war on Germany. Causes of this were unrestricted submarine warfare and the “Zimmermann Telegram."
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A British offensive at Cambrai, France, marks the first large-scale use of tanks in combat.
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The Soviet government concludes a separate peace with the Central Powers when it accepts the Treaty of Brest-Litovsk. Russia surrenders its claim to Ukraine, to its Polish and Baltic territories, and to Finland.
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Germany and the Allies conclude an armistice based largely on Wilson’s Fourteen Points.
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