jul 28, 1914 - Beginning of the First World War : Austria-Hungary declares war on Serbia

Description:

The murder of the Archduke Franz Ferdinand of Austria led to war because of different alliances between the European countries

Illustration : Archduke Franz Ferdinand (1863-1914), and Duchess Sophie Chotek (1868-1914) in the New York Times newspaper after their assassination, spurring World War I, 1914, Alamy (c), http://www.alamy.com/stock-photo-archduke-franz-ferdinand-1863-1914-and-duchess-sophie-chotek-1868-32388704.html