World War 1

Formation of the Triple Alliance

May 20, 1882

Formation of the Triple Entente

Aug 31, 1907

Germany Declares a Blockade on Britain

Feb 4, 1914

First Use of Submarines

Jun 1, 1914

Assassination of Franz Ferdinand

Jun 28, 1914

Beginning of Schlieffen Plan

Aug 4, 1914

First Use of Poison Gas

Aug 20, 1914

Battle of Tannenberg

Aug 26, 1914

Battle of Marne

Sep 6, 1914

Trench Warfare and Stalemate Begins

Battle of Ypres

Oct 19, 1914

Britain Declares a Blockade on Germany

Nov 3, 1914

First German Zeppelin Attack

Jan 19, 1915

First Use of Tanks

Feb 1, 1915

Dardanelles Campaign

Mar 18, 1915

Creation of Yugoslavia

Apr 30, 1915

Sinking of the Lusitania

May 7, 1915

Battle of Verdun

Feb 21, 1916

Germans Break the Sussex Pledge

May 4, 1916

Battle of Somme

Jul 1, 1916

Zimmerman Telegram

Jan 19, 1917

Czar Nicholas II Abdicates the Throne

Mar 15, 1917

U.S. Declares War on Germany

Apr 2, 1917

Bolshevik Revolution is Successful

Nov 7, 1917

Flu Epidemic

Period: Jan 1, 1918 to Jan 1, 1919

Fourteen Points

Jan 8, 1918

Treaty of Brest-Litovsk

Mar 3, 1918

2nd Battle of Marne

Jul 15, 1918

General Jack Pershing Leads the American Expeditionary Force in the First Major Offensive in Europe

Sep 12, 1918

Creation of Czechoslovakia

Oct 28, 1918

Creation of the Mandate System

Nov 5, 1918

Kaiser Wilhelm II Abdicates the Throne

Nov 9, 1918

Armistice Day

Nov 11, 1918

11th hour of the 11th day of the 11th month

Treaty of Versailles

Jun 28, 1919

Creation of the League of Nations

Jan 10, 1920