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Assissination of Archduke Franz Ferdinand
The assassination set off a rapid chain of events, as Austria-Hungary immediately blamed the Serbian government for the attack. -
Trench Warfare, Poison Gas, and Machine Guns (1914)
Derived from machine gun models the Hotchkiss Model 1914 was one of the most popular heavy machine guns of the war -
Sinking of the Lusitania (1915)
It helped push the United States into entering the war on the Allied side. -
Zimmerman Telegram
a secret diplomatic communication issued from the German Foreign Office in January 1917 that proposed a military alliance between Germany and Mexico. -
Russian Revolution
The Russian Revolution of 1917 was one of the most explosive political events of the 20th century -
U.S. entry into WWI (1917)
President Woodrow Wilson went before a joint session of Congress to request a declaration of war against Germany. -
Battle of Argonne Forest (1918)
The Battle of Argonne Forest was part of what became known as the Meuse-Argonne Offensive, the last battle of World War I -
Armistice
Germany asked the Allies for an armistice rather than surrender -
Woodrow Wilson’s Fourteen Points
The Fourteen Points speech of President Woodrow Wilson was an address delivered before a joint meeting of Congress on January 8, 1918 -
Treaty of Versailles (1919)
World War I officially ended with the signing of the Treaty of Versailles on June 28, 1919