#e <t>war<n>World War I<d>1914 Jul 28<e>1918 Nov<c>Europe
// 1914
#e <t>assassination<d>1914 Jun 28<n>Archduke Ferdinand assassinated<c>Sarajevo<info>The heir to the Austro-Hungarian throne, Archduke Franz Ferdinand, and his wife were murdered by a Serb terrorist in the Bosnian town of Sarajevo on June 28, 1914.<ref>Grolier
#e <t>declaration<d>1914 Jul 23<n>Austrian ultimatum to Serbia<c>Austria<info>Austria accused the Serbian government of having instigated the @assassination of Archduke Ferdinand@Archduke Ferdinand assassinated@. Eager to expand in the Balkans and relying on German support, Austria delivered an ultimatum on July 23 demanding a virtual protectorate over Serbia. Serbia accepted all but one of the demands, but its response was unsatisfactory to Austria-Hungary.<ref>Grolier
#e <t>declaration<d>1914 Jul 28<n>Austria-Hungary declares war against Serbia<c>Austria<info>Austria-Hungary declared war on Serbia on July 28. The next day Austrian artillery bombarded Belgrade, the capital of Serbia. Russia immediately ordered mobilisation against Austria.<ref>Grolier
#e <t>declaration<d>1914 Aug 1<n>Germany declares war against Russia<c>Berlin
#e <t>declaration<d>1914 Aug 3<n>Germany declares war against France<c>Berlin<info>Following Germany's declaration of war against @Russia@Germany declares war against Russia@, Russia's ally, France, then began to mobilise, prompting Germany to declare war against France on August 3.<ref>Grolier
#e <t>declaration<d>1914 Aug 4<n>Britain declares war against Germany<c>London<info>Britain was not bound by the entente to enter the conflict (the entente powers did not form military alliances until after the outbreak of the war). But when the Germans began marching toward France through Belgium, the British government decided that it must honour its commitment to defend Belgian neutrality. It declared war on Germany on August 4.<ref>Grolier
// 1915
#e <t>use<d>1915 Apr 21<n>poison gas<c>Ypres<info>The first use of poison gas was by the Germans in France during the First World War.
#e <t>battle<d>1915 Apr 22<e>1915 Apr 26<n>Second Battle of Ypres<c>France
#e <t>battle<d>1915 Jun 15<n>battle of Givenchy<c>France
#e <t>sinking<d>1915 May 7<n>Lusitania sunk<c>North Atlantic<info>The British liner Lusitania was sunk by a German submarine off the coast of Ireland. About 1,200 people were drowned, including 128 Americans. The sinking provoked a massive outcry in the United States, and President @Woodrow Wilson@@ protested strongly to Germany. The German government justified the action on the grounds that the Lusitania carried munitions, but it privately ordered German submarines not to sink passenger ships without warning. The incident contributed to the deterioration in U.S.-German relations that eventually led the United States to enter World War I.
#e <t>sinking<d>1915 Aug 19<n>Arabic sunk<c>North Atlantic<info>The German navy sank of the British liner Arabic on August 19, 1915. Fearing America would enter the war on the side of the Allies, the German government agreed to pay indemnities and guaranteed that submarines would not sink passenger liners without warning.<ref>Grolier
// 1916
#e <t>sinking<d>1916 Mar 24<n>Sussex sunk<c>North Atlantic<info>The passenger ship Sussex was torpedoed by German U-boats on March 24, 1916. Several Americans were killed.
#e <t>declaration<d>1916 May 10<n>Germany suspends U-boat campaign<c>Berlin<info>Germany announced the abandonment of the extended submarine campaign. This suspension lasted until January 31, 1917, when, in a complete about-face, Germany announced a resumption of its policy of unrestricted submarine warfare.<ref>Grolier
// 1917
#e <t>declaration<d>1917 Feb 3<n>U.S. ends diplomatic ties with Germany<c>Washington D.C.<info>Wilson breaks off all diplomatic relations with Germany.
#e <t>letter<d>1917 Mar<n>Zimmerman Telegram<c>Washington D.C.<info>This telegram was from the German foreign minster, Arthur Zimmermann, to the German ambassador to Mexico. It told him that the Germans planned to begin unrestricted submarine warfare, but that they would endeavor to keep the Americans neutral. If America did enter the war, however, the Germans planned to give assistance to Mexico to retake its former territories of Texas, New Mexico and Arizona. The telegram was turned over to the U.S. government by British intelligence, who had intercepted and decoded the message. Less than three months later the U.S. declared war. The director of German intelligence later wrote that its decryption "was a great intelligence coup and did us irreparable harm."<ref>J. Satinover, pg. 106
#e <t>declaration<d>1917 Apr 6<n>U.S. delcares war against Germany<c>Washington D.C.
#e <t>battle<d>1917 Apr 9<n>battle of Vimy Ridge<c>France<info>Canadian troops break through the German lines.
#e <t><d>1917 Jun 2<n>Bishop wins VC<c>France<info>Capt William Avery Bishop of the RFC wins Canada's first air Victoria Cross. He later became the top allied fighter pilot with 72 victories.
#e <t>declaration<d>1917 Dec 7<n>U.S. delcares war against Austria-Hungary<c>Washington D.C.
// 1918
#e <d>1918 Apr 21<n>Red Baron shot down<c>Somme<info>Controversy still surrounds the shooting down of @Manfred von Richthofen@@, the "Red Baron." Canadian pilot @Arthur Roy Brown@@ was decorated for the act, but Australian infantry who were fighting below the air battle also claimed the kill.
