world war 1 By qj47969 22 number 3 On July 28, 1914, one month to the day after Archduke Franz Ferdinand of Austria and his wife were killed by a Serbian nationalist in Sarajevo Austria Hungary declares war on Serbia, effectively beginning the First World War.
On July 28, 1914, one month to the day after Archduke Franz Ferdinand of Austria and his wife were killed by a Serbian nationalist in Sarajevo Austria Hungary declares war on Serbia, effectively beginning the First World War.