World Wars

Archduke Franz Ferdinand Assasinated

Jun 28, 1914

World War 1

Period: Jul 28, 1914 to Nov 11, 1918

Russia Mobilizes

Jul 30, 1914

Germany Invades Belgium

Aug 4, 1914

Germans Use Chlorine Gas on a large scale

Apr 22, 1915

Lusitania Sinks

Sep 18, 1915

First Tanks

Sep 15, 1916

Deployed by the British

Germany Limits Submarines

Sep 18, 1916

To prevent America from joining the war

Germany Unrestricted Submarines

Feb 1, 1917

This brings America into the war and lead to Germany's defeat

Zimmerman Telegram

Feb 25, 1917

President Wilson outlines his case for war to Congress.

Apr 2, 1917

U.S. Enters War

Apr 6, 1917

The Treaty of Versailles

Period: Jun 28, 1919 to Jan 21, 1920

The Roaring Twenties

Period: Jan 1, 1920 to Dec 31, 1929

Great Depression

Period: Sep 29, 1929 to 1939

World War 2

Period: Sep 1, 1939 to Sep 2, 1945

Adolf Hitler Died

Apr 30, 1945