WW1 Annotated Timeline

The Formation of the Triple Alliance

May 20, 1882

Germany, Austria-Hungary, Italy

The Formation of the Triple Entente

Aug 31, 1907

Britain, France, Soviet Union (or Russia)

The Assassination of Archduke Franz Ferdinand

Jun 28, 1914

Blank Cheque

Jul 5, 1914

The Ultimatum

Jul 23, 1914

World War 1 Started

Jul 28, 1914

Austria-Hungary declared the war on Serbia

The Second Battle of Ypres

Period: Apr 22, 1915 to May 25, 1915

Battle of Somme

Period: Jul 1, 1916 to Nov 18, 1916

Battle of Vimy Ridge

Period: Apr 9, 1917 to Apr 12, 1917

Battle of Passchendaele

Period: Jul 31, 1917 to Nov 10, 1917

The Battle of Cambrai

Period: Nov 20, 1917 to Dec 6, 1917

WW1 ended

Nov 11, 1918

Germany surrendered