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Assassination of Archduke Ferdinand
A teenage Serbian nationalist gunned down Archduke Franz Ferdinand and his wife, Sophie, as their motorcade maneuvered through the streets of Sarajevo. Next in line for the Austro-Hungarian throne, Ferdinand had not been particularly well liked in aristocratic circles. -
Schlieffen Plan
The Schlieffen Plan was the operational plan for a designated attack on France once Russia, in response to international tension, had started to mobilise her forces near the German border. The execution of the Schlieffen Plan led to Britain declaring war on Germany on August 4th, 1914. -
Trench warfare began
Trench warfare of the First World War can be said to have begun in September 1914 and ended when the Allies made a breakthrough attack that began in late July 1918. Before and after those dates were wars of movement: in between it was a war of entrenchment. -
Christmas Truce along Western Front
The Christmas Truce of 1914 is often celebrated as a symbolic moment of peace in an otherwise devastatingly violent war. We may like to believe that for just one day, all across the front, men from both sides emerged from the trenches and met in No Man's Land to exchange gifts and play football. -
Germans introduce poison gas
The Germans introduced gas into trench warfare to get the drop on the USA. This killed- 30,000
This injured- 500,000 -
Sussex Pledge
The Sussex Pledge was a promise made in 1916 during World War I by Germany to the United States prior to the latter's entry into the war. Early in 1915, Germany had instituted a policy of unrestricted submarine warfare, allowing armed merchant ships, but not passenger ships, to be torpedoed without warning. -
Sinking of Lusitania
The sinking of the Cunard ocean liner RMS Lusitania occurred on Friday, 7 May 1915 during the First World War, as Germany waged submarine warfare against the United Kingdom of Great Britain and Ireland. 788 people died -
Battle of Verdun
The Battle of Verdun, fought from 21 February – 18 December 1916, was one of the largest battles of the First World War on the Western Front between the German and French armies -
Zimmerman Telegram
On this day in 1917, the text of the so-called Zimmermann Telegram, a message from the German foreign secretary, Arthur Zimmermann, to the German ambassador to Mexico proposing a Mexican-German alliance in the case of war between the United States and Germany, is published on the front pages of newspapers -
President Woodrow Wilson asked for declaration of war
Woodrow Wilsion declared war on Germany
