-
Archduke Franz Ferdinand's Assassination
Archduke Franz Ferdinand was assassinated by Gavrilo Princip. -
Period: to
World War 1
-
Period: to
First Battle of the Marne
During this timespan, the First Battle of the Marne was fought, and the Allies pushed the German lines back approximately 40 miles. -
Sussex Pledge
The Sussex pledge was a German renewal of a previous promise to not sink liners without warning or without ensuring thee passengers' safety. -
The National Defense Act was passed
This act increased the number of soldiers in the regular army to ensure military preparedness. -
Period: to
Battle of the Somme
The Battle of the Somme occurred during this time period and it was the longest battle of the war. Over 1 million people were killed. -
The Zimmerman Note was intercepted
The Zimmerman Note, which proposed a Mexian alliance with Germany, and offered German support to help Mexico reconquer the territory it lost in America, was intercepted. -
Congress declares war
The Senate declared war on April 4, 1917. -
The Committee on Public Information is established
The Committee on Public Information led a propaganda campaign to encourage the American people to support the war. -
Espionage Act
The Espionage Act outlawed acts of treason and made it a crime to criticize opponents of the war and silence opponents. -
Period: to
The Battle of Verdun
-
National War Labor Board was established
On this date, the National War Labor Board was established to ensure that the voice of labor was heard. -
Congress passed the Selective Service Act
This Act required men between the ages of 21 and 30 to register with local draft boards. -
Period: to
Battle of the Argonne Forest
This was the final war, and ended with the signing of an armistice. -
Period: to
The Paris Peace Conference
-
Treaty of Versailles
The Treaty of Versailles was signed on this date, which offically ended the war.
