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Assassination of Franz Ferdinand
Archduke Franz Ferdinand and his wife, Sophie, were in Sarajevo to inspect armed forces in Bosnia-Herzegovina. While in an open car, Gavrilo Princip, a Serbian terrorist, fires into the car shooting both the archduke and his wife. -
Period: to
Beginning of World War 1
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Austria-Hungary Delcares War on Serbia
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Germany Declares War on Russia
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Germany Declares War on France
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Great Britain Declares War on Germany
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Declaration of Neutrality
President Woodrow Wilson delivered a message to Congress delcaring the neutrality of the Untied States in World War I. He was unwilling to let the country into the war because it would bring an end to Progressive Reform. -
German Cruiser Sinks William P. Frye
The American merchant ship, William P. Frye, was on its way to England with a cargo of wheat when it was intercepted by a German cruiser in the South Atlantic Ocean. When the American ship's crew failed to reach the order of dropping their cargo as contraband, the German captain ordered the ship to be destructed. -
Germany Forms Submarine Blockade of Great Britain
When Great Britain formed a blockade to Germany to prevent supplies from coming through, Germany blocks Great Britain back, but more intense. Great Britain's navy intercepts any ship that comes to Germany while Germany will sink any ship approaching England without warning. -
German U-Boat Sinks The Lusitania
The British ocean liner, The Lusitania, was hit by a torpedo by a German submarine after the captain of the ship ignored warnings and recommendations. Of the 1,201 drowned inlcluded women and children; 128 were Americans. America requests Germany to stop unrestricted submarine warfare and Germany agreed. -
Italy Declares War on Austria-Hungary
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Germany Resumes Submarine Warfare
Germany returns to the unrestricted submarine warfare in response to the United States and other neutral countries' pressure. -
President Wilson Learns of the Zimmermann Telegram
The Zimmerman Telegram was a coded message from Zimmerman intended to be sent to the German ambassador to Mexico. The message read that if Mexico allied with Germany against the United States, Germany would offer financial aid and promised to restore its lost territories of Texas, Arizona, and New Mexico. President Wilson was shocked and angered. -
Germans Sinks 4 U.S. Merchant Ships
Germans sink 4 American merchant ships in late March, angering many Americans and causing President Wilson to give up on keeping the United States a neutral country. -
Wilson Abandons Neutrality Policy
President Woodrow Wilson abandons his policy of neutrality and asks Congress to declare war against Germany. -
America Enters World War I
President Woodrow Wilson's request was granted by Congress, America was formally at war with Germany.
