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Assassination of Archduke Ferdinand
He was shot to death along with his wife by a Serbian nationalist in Sarajevo, Bosnia, on this day in 1914. -
Schlieffen Plan
Created by General Count Alfred von Schlieffen in December 1905. 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. -
Trench Warfare Begin
The types of warfare allowed for more defensive strategies to be utilized throughout the war. The biggest example of this is trench warfare. Mostly used during the Civil War. -
Christmas Truce along Western Front
During World War I, on and around Christmas Day 1914, the sounds of rifles firing and shells exploding faded in a number of places along the Western Front in favor of holiday celebrations in the trenches and gestures of goodwill between enemies. -
Germans Introduced Poison Gas
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. -
Sinking of Lusitania
A german U-boat torpedoed and sank the RMS Lusitania, a British ocean liner en route from New York to Liverpool, England. More than 1,100 perished, including more then 120 Americans. -
Battle of Verdun
The greatest and lengthiest in world history. Never before or since has there been such a lengthy battle, involving so many men, situated on such a tiny piece of land. 337,000 casualties was involved -
Sussex Pledge
The Sussex Pledge was a promise given by the German Government to the United States of America on May 4th 1916 in response to US demands relating to the conduct of the First World War. -
Zimmerman Telegram
A message from the German foreign secretary, Arthur Zimmermann, to the German ambassador to Mexico. -
President Woodrow Wilson asked for declaration of war
President Woodrow Wilson asks Congress to send U.S. troops into battle against Germany in World War I. -
Committee on Public Information formed
The CPI provided propaganda during WWI to rally the support of American citizens for all aspects of the war effort. -
Selective Service Act became law
No cost to individuals impacted by the incident, including credit report access, credit monitoring, identity theft insurance and recovery services. -
General John J. Pershing became AEF leader
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Battle of Argonne Forest
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World War I ended
