World War I

Franz Ferdinand Assassination

Jun 28, 1914

The assassination of the Archduke investigated the beginning of World War I.

Archduke killed

Jun 28, 1914

Archduke and his wife got shot by Gavrilo Princep. He got assassanated on June 28, 1914

First use of gas as a weapon by the Germans

1915

The most effective gas was called Mustard gas. It was introduced by Germany in July 1917.

Sinking of the Lusitania

May 7, 1915

This happened when Germany waged submarine warfare against the United Kingdom which had implemented a naval blockade of Germany

Austria-Hungary declares war on Serbia

Jul 28, 1915

The causing of this was because of the assassanation of Archduke.

Wilson reelected; pledged American nuetriality

1916

Wilson was reelected on Tuesday November 7.

Zimmermann Note

1917

A secret diplomatic communication issued from the German Foreign office in January 1917

U.S. Declares War

1917

U.S declares war on Germany on April 2,1917

Bolsheviks led by Lenin overthrow Russian government

Nov 7, 1917

On November 7, 1917 The Russia,s Bolshevik Revolution overthrew the provisional government.

War ends

1918

The war lasted from July 28, 1914 - November 11, 1918. It ended at 11 am on the eleventh month in 1918. Germany signed an armistice that Britain and France had prepared.

Treaty of Versailles

Jun 28, 1919

The most important of the peace treaties that brought World War I to an end.