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Archduke Franz Ferdinand and his wife Sophie were assassinated on June 28, 1914 in Sarajevo, Bosnia.
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On July 28, 1914, Austria-Hungary declared war on Serbia.
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On November 5, 1914, Ottoman Empire declares war on the Allies
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On May 7th, 1915, The ship was torpedoed and sunk by the submerged German U-boat (submarine) SM U-20.
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On the month of November in 1917 the Russians leave World War 1.
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On April 6,1917, the United States joins World War 1.
