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Assassination of Archduke Francis Ferdinand
Archduke Ferdinand was heir to the throne of Austria-Hungary. The Serbian group called the Black Hand was the group that Gavrilo Princip was in. Gavrilo Princip is the assassin that killed Ferdinand. -
Austria-Hungary Declares War on Serbia
On July 28, 1914, Russia mobilized their troops when Austria declared war on Serbia. -
Germany Declares War on Russia
On August 1, 1914 Germany mobilized their troops and joined the war against Russia. Two days later Germany delcared war on France. -
Lusitania Sunk by U-Boat
The U-Boat sunk the British liner Lusitania. The U.S got mad about it because 128 U.S citizens were on board. -
Sussex Pledge
Submarines could be sunk without warning unless it was a passenger boat. -
Zimmerman Note
The Zimmerman Note is sent to President Wilson on Febuary 26, 1917. This led Wilson to start preparing troops to join World War I. -
U.S Enters the War
The U.S joins the war on April 2, 1917. President Wilson makes the world more safer for a democracy -
President Wilson's 14 Points
President Wilson put through his 14 Point that initiated world peace. -
The War Is Over!
World War One ended on November 11, 1918 and did not technically be over until June of 1919 but no more fighting went on. -
Treaty of Versailles
The Treaty of Versailles was enforced in June 28, 1919. It ended all of the war thoughts and everyone was at peace with each other and alliances started.
