-
The heir to the Austro-Hungarian throne, Archduke Francis Ferdinand, and his wife were visiting in the city of Bosnian city of Sarajevo. This is the start of The Great War.
-
The United Kingdom declares war on Germany, after Germany invades Belgium.
-
U.S. President Woodrow Wilson announces the U.S. will remain neutral.
-
The Battle of Gallipoli begins.
-
The German U-boats sank the Lusitania.
-
Tsar Nicholas II takes personal control over Russia's armies.
-
The Battle of Verdun begins. The Battle of Verdun was the longest battle of World War 1 and was one of the bloodiest.
-
The Battle of the Somme begins. During the Battle of the Somme, tanks are first introduced into battle.
-
Germany sends the secret Zimmerman Telegram to Mexico in an effort to entice Mexico to join the war. The British intercept and decipher the coded message.
-
The United States declares war on Germany.
-
The Bolsheviks successfully overthrow the Russian government.
-
The armistice agreed upon between the new Russian government and the Central Powers goes into effect.
-
U.S. President Woodrow Wilson issues his Fourteen Points to peace.
-
German flying ace, Baron Manfred von Richthofen (more commonly known as the Red Baron), is shot down.
-
Germany signs the armistice at Compiegne, France. Fighting ends on the 11th hour of the 11th day of the 11th month.
-
The Treaty of Versailles officially ends World War 1.