World War I

Assassination of Archduke Franz Ferdinand

Jun 28, 1914

Him and his wife were shot by Gavrilo Princip. He was killed because the assasins wanted to be made into a Greater Serbia or a Yugoslavia.

Austria declares war on Serbia

Jul 28, 1914

This began the First World War. Austria was convinced that the Serbian government had a secret plan against them. So, they declared war on Serbia.

Beginning of Trench Warfare

Sep 1, 1914

Started around September 1914 and ended around 1918. Trenches were really dangerous. The idea of digging into the ground wasn't a new idea to the Great War.

First Battle of the Marne

Sep 6, 1914

Occurred between September 6-12, 1914. It was an Allied victory against the German Army. Begining of the Great War.

First Battle of the Dardanelles

Feb 24, 1915

Took place between February 24 1915 and January 9 1916. A British and French operation was to secure a sea route to Russica and to capture the Ottoman capital of Constantinople.

Second Battle of the Dardanelles

Apr 22, 1915

This war starts on April 22, 1915. The Germans first use poison gas.

Sinking of the Lusitania

May 7, 1915

The ship left New York and went off to Liverpool. It went near the coast of Ireland. A torpedo fired by the submarine. A second explosion ripped the liner apart. In 18 min. the ship sank beneath the sea.

Battle of Verdun

Feb 21, 1916

Lasted from February 21, 1916 - December 19, 1916. This battle was considered the greatest in history. It was also the longest battle in World War I. It was von Falkenhayn's plan to attack Verdun.

Battle of Somme

Jul 1, 1916

This battle happened between July 1, 1916 and November 14, 1916. The British and French took an offensive against the German Army. This battle was one of the largest battles of WWI.

Germany begins unrestricted warfare

Jan 9, 1917

This event was one of the main reasons why America joined the war. This is an event where submarines sink merchantmen without a warning.

US declares war on Germany

Apr 2, 1917

Woodrow Wilson declared war on Germany on April 2, 1917. He declared war because he felt threatened because Teddy Roosevelt was going to run for another term.

Treaty of Brest-Litovsk

Mar 3, 1918

This treaty was a peace treaty. The main purpose for this treaty was to give breathing space to Lenin's Bolsheviks. It gave a lot of independence to many different countries.

World War I ends

Nov 11, 1918

The world ended when the power went in favor to the Allies. On November 11, 1918 Germany gave truce and the Central powers finally surrendered. In the end, almost 10,000,000 people were dead.

Treaty of Versailles signed

Jun 18, 1919

The Treaty of Versailles was signed on June 28, 1919. It featured 440 articles.