28 jul 1914 ano - Austria declares war on Serbia
Descrição:
One month after Archduke's death Austria-Hungary declares war on Serbia, igniting the first World War.
Source:
History, "Austria-Hungary declares war on Serbia"
(http://www.history.com/this-day-in-history/austria-hungary-declares-war-on-serbia)
Adicionado na linha do tempo:
Data: