- 
  
  Causes, Development and Aftermath of WWI
 - 
  
  was signed in London at, what is now, the Lansdowne Club
 - 
  
  Between France and UK
 - 
  
  Between France, GB, Rusia and Serbia
 - 
  
  Assassination of Archduke Franz Ferdinand, heir to the throne of Austro-Hungarian empire, in Sarajevo, Bosnia
 - 
  
  Kaiser William II promised German support for Austria against Serbia
 - 
  
  Austria-Hungary declares war on Serbia
 - 
  
  Germany declared war on Russia
 - 
  
  Germany declares war on France
 - 
  
  Britain declares war on Germany
 - 
  
  German U-boat attacks on Allied and neutral shipping; declares blockade of Britain
 - 
  
  France, Russia, Italy and Britain conclude secret Treaty of London
 - 
  
  U-boat sinks British liner Lusitania with the loss of American lives, creating a US-German diplomatic crisis
 - 
  
  Italy declared war on Germany and Austria
 - 
  
  Tsar Nicholas takes command of Russian armies
 - 
  
  USA declared war on Germany
 - 
  
  Armistice between Germany and Russia signed
 - 
  
  The Treaty of Brest-Litovsk was signed between Russia and Germany
 - 
  
  Turkey made peace
 - 
  
  Austria made peace
 - 
  
  Kaiser William II abdicated
 - 
  
  Germany and Austria-Hungary admit defeat
 - 
  
  Peace conference met at Paris
 - 
  
  The Treaty of Versailles was signed by the Germans