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Assassination by Gavrilo Princip of the Arch
Duke of Austria-Hungry, a spark to WW1 -
Austria-Hungary declares war on Serbia, beginning World War I. -
Germany invades Luxembourg and Belgium. France invades Alsace. British forces arrive in France. Nations allied against Germany eventually included Great Britain, Russia, Italy, Australia, New Zealand, South Africa, Rhodesia, Romania, Greece, France, Belgium, United States, Canada, Serbia, India, Portugal, Montenegro, and Poland. -
Austria-Hungary invades Russia on 8/10/1914 -
Germany begins a naval blockade of Great Britain. -
German submarine sinks the passenger liner Lusitania during crossing from New York to Liverpool, England, killing 128 Americans. -
Italy declares war on Austria-Hungary -
Germany begins the attack on Verdun. -
Allied offensive begins the Battle of the Somme. -
The battle of Verdun ends with 550,000 French and 450,000 German casualties. -
The United States declared war on Germany, primarily for Zimmerman's telegram. -
American combat forces land in France. -
President Woodrow Wilson presents to Congress his outline of Fourteen Points required for peace. -
United States forces were victorious in the Battle of Cantigny, the first independent American operation. -
Allied forces begin the attack at Meusse-Argonne, the final offensive of the war. -
British and American forces entered Germany on 12/1/1918 -
Draft of the covenant of the League of Nations is completed. -
Allied and German representatives sign treaty of Versailles. The United States signs treaty of guaranty, pledging to defend France in case of an unprovoked attack by Germany. -
Treaty of Versailles takes effect
United States Senate failed to ratify the Treaty of Versailles for the second time. -
United States signs separate peace treaties with Germany, Austria, and Hungary.