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Assassination of Archduke Franz Ferdinand
Archduke Franz Ferdinand and his wife, Sophie was assassinated by Gavrilo Princip. -
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World War One
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The Panama Canal opens to traffic.
Panama Canal opened to traffic -
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First Battle of the Marne
The Allies pushed the German lines back 40 miles north of the Aisne River. -
Italy joining The Allies
Italy remained neutral until 1915. -
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The Battle of Verdun
The battle began with a staggering 21-hour artillery barrage in which more than 1 million shells were fired. -
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Battle of the Somme
British forces suffered about 60,000 casualties in one single day. -
U-boats sinking American ships
German torpedoes sank five American ships. -
Zimmerman Note
This note proposed a Mexican alliance with Germany. The cable offered German support to help Mexico "reconquer the lost territory in New Mexico, Texas, and Arizona." -
President Wilson asked Congress for a declaration of war
President Woodrow Wilson concluded that the U.S. could no longer stay neutral. -
Congress passed Selective Service Act
Required men between ages 21-30 to register with local draft boards. -
Thousands of U.S soldiers marched through Paris, France
These soldiers helped France fight for their freedom because the U.S. was repaying France for their help during the Revolutionary War. -
President Wilson presented the Fourteen Points
President Woodrow Wilson presented a summary of his principles and Allied war aims to Congress. The Fourteen Points was apparently a program for world peace. -
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Battle of the Argonne Forest
Americans suffered 120,000 casualties in this battle. -
The Paris Peace Conference
The peace conference was dominated by the Big Four--Wilson, British prime minister David Lloyd George, French premier Georges Clemenceau, and Italian prime minister Vittorio Orlando.
