-
Period: to
WWI
-
June 28 1914
June 28 - Archduke Franz Ferdinand, heir to Austria-Hungary's throne, and his wife, Sophie, are assassinated by Serbian nationalist Gavrilo Princip while the couple were visiting Sarajevo -
July 28 1914
July 28 - Austria-Hungary declares war on Serbia -
August 1 1914
August 1 - Germany declares war on Russia. -
August 3 1914
Germany declares war on France. -
August 4 1914
The United Kingdom declares war on Germany, after Germany invades Belgium. -
August 6 1914
Austria-Hungary declares war on Russia and Serbia declares war on Germany. -
August 19 1914
U.S. President Woodrow Wilson announces the U.S. will remain neutral. -
August 26 1914
The Battle of Tannenberg begins. -
November 3 1914
The United Kingdom announces that the North Sea is a military area, effectively creating a blockade of goods into Germany. -
February 19 1915
The Dardanelles Campaign begins. -
April 25 1915
The Battle of Gallipoli begins. -
February 21 1916
The Battle of Verdun begins. The Battle of Verdun was the longest battle of World War I and was one of the bloodiest. -
July 1 1916
The Battle of the Somme begins. During the Battle of the Somme, tanks are first introduced into battle -
April 6 1917
The United States declares war on Germany -
January 8 1918
U.S. President Woodrow Wilson issues his Fourteen Points to peace. -
March 3 1918
Russia signs the Treaty of Brest Litovsk, which is a peace treaty between Russia and the Central Powers -
March 21 1918
Germany launches the Spring Offensive. -
April 21 1918
German flying ace, Baron Manfred von Richthofen (more commonly known as the Red Baron), is shot down. -
November 11 1918
-Germany signs the armistice at Compiegne, France. Fighting ends on the 11th hour of the 11th day of the 11th month