Founding of the Triple Alliance


A secret military agreement between Germany, Austria-Hungary, and Italy.

Founding of the Triple Entente


Agreement between Great Britain, France, and Russia to defend each other in times of war.

Assasination of Archduke Franz Ferdinand of Austria

Approx. June 28, 1914

By a Serbian nationalist

Sinking of the Lusitania

May 7, 1915

U.S. Merchant ship that was sunk by a German U-Boat.

Battle of Somme


The Battle of the Somme was one of the largest battles of the First World War. July 1 - November 1, 1916 Near the Somme River in France. On the first day alone, the British suffered more than 57,000 casualties, and by the end of the campaign the Allies and Central Powers would lose more than 1.5 million men.

Battle of Verdun


The Battle of Verdun, fought from 21 February to 18 December 1916, was one of the largest and longest battles of the First World War on the Western Front between the German and French armies

Zimmerman Telegram- 1917

January 16, 1917

Germany sent a telegram to Mexico saying Germany would help Mexico take back Texas Arizona, and Nevada if they attacked America. British Code breakers intercepted it.

Mexico Considers the Zimmerman Telegram

February 1917

Mexican leader appointed a general to actually "run the numbers" on attacking America.

February Revolution - Russia

February 1917

A shortage of food brought weeks worth of rioting to the streets the people eventually won.

Mexico realized how incredibly terrible an idea it was!!!

March 1917

Bolshevik Revolution

April 1917

The Bolsheviks take power.

US Declares War

June 1917

You pissed us off!!! Now here we come!!!

Congress institutes the Selective Service Act - the Draft

July 1917

We Organize Our Economy

August 1917

Treat of Versailles, ending World War 1