28 jul 1914 año - Official Start Of War

Descripción:

World War 1 was a global war originating in Europe that lasted from 28 July 1914 to 11 November 1918. a Bosnian Serb Yugoslav nationalist, assassinated the Austro-Hungarian heir Archduke Franz Ferdinand in Sarajevo, leading to the July Crisis. In response, on 23 July Austria-Hungary issued an ultimatum to Serbia. Serbia's reply failed to satisfy the Austrians, and the two moved to a war footing.