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On this day, Archducke Franz Ferdinand of Austia Hungary was shot and killed by Gavrilo Princip on June 28, 1914. This was considered to be the beginning of World War I.
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On August 1, 1914 Germany declared war on France.
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On August 4, 1914 Britain declared war on Germany. This was the start of World War I.
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On the eastern front, Germans shatter the Russian Second Army and take over 92,000 prisoners at the Battle of Tannenberg.
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The attack has little military value, but is intended to terrorize civilians.
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German invasion of France is stopped in the First Battle of the Marne as German troops are forced to the north side of the Marne River, causing the the Schlieffen Plan to fail.
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On April 22, 1915, German forces shock Allied soldiers along the western front by firing more than 150 tons of lethal chlorine gas against two French colonial divisions at Ypres, Belgium. This was the first major gas attack by the Germans, and it devastated the Allied line.
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On Friday, 7 May 1915 the Lusitania sank. This happened during the first World War.
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Woodrow Wilson maintained a policy of neutrality between the Allied Powers and the Central Powers during World War 1.
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The Zimmerman Note was a secret diplomatic that communicated issues from the German Foreign Office.
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The resolution declaring war against Austria-Hungary was approved by the House of Representatives by a vote of 350 to 1.Congress approved its last formal declaration of war during World War II on April 4th, 1917.
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On June 15, 1917, two months after the United States entered World War I, Congress adopted the Espionage Act. The Espionage Act gave the federal government increased leverage to prosecute what it considered unruly elements.
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The 1918 influenza pandemic was an unusually deadly influenza pandemic, the first of the two pandemics involving H1N1 influenza virus. It infected 500 million people around the world, including people on remote Pacific islands and in the Arctic.
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The Armistice of 11 November 1918 was the armistice signed at Le Francport near Compiègne that ended fighting on land, sea and air in World War I between the Allies and their opponent, Germany. Previous armistices had been agreed with Bulgaria, the Ottoman Empire and the Austro-Hungarian Empire.