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On 28 June 1914, Archduke Franz Ferdinand of Austria and his wife, Sophie, Duchess of Hohenberg, were shot dead in Sarajevo.
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After Austria-Hungary declared war on Serbia, Russia and Germany declare war on each other.
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On August 4th 1914, Great Britain declared war on Germany.
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On 19 August 1914 U.S. President Woodrow Wilson annouces the U.S. will remain neutral during WWI.
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The Battle of Tannenberg was fought between Russia and Germany from August 26 to August 30 1914.
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On September 6, 1914 the first Battle of the Marne begins.
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On December 7, 1914, Pope Benedict XV suggested a temporary pause on the war for Christmas.
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On 4 February 1915, Kaiser Wilhelm II of Germany declared the seas around the British Isles a "war zone" effecting a submarine blockade where even trade ships were possible targets, making trade almost inpossible.
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On Apr 25, 1915 The Allies begin invasion of Gallipoli.
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Germany waged submarine warfare against the United Kingdom Lusitania sinks in 18 minutes. One resaon America joins WWI.
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July 1, 1916, the first day of the Somme offensive, resulted in 57,470 British casualties.
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On January 11, 1917 The message was sent from the German ambassador to Mexico.
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On April 6, 1917, the United States declared war on Germany.
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On Januaury 8,1918 Woodrow Wilson issues Fourteen Pionts and created the basis for peace negotioations in the future.
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On April 21, 1918 Red Baron is shot down.
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On 28 June 1919, The Treaty of Versailles was passed. One contribution to the rise of Hitler and WWII.
