On this day in 1914, Austria-Hungary issues a punitive 10-point ultimatum to Serbia in the wake of Archduke Franz Ferdinand’s assassination in Sarajevo the month before On this day in 1914, Austria-Hungary issues a punitive 10-point ultimatum to Serbia in the wake of Archduke Franz Ferdinand's assassination in Sarajevo the month before. Serbia accepts all but one of the demands; Austria-Hungary declares war. pic.twitter.com/0OcJ4LTVfb— Military History Now (@MilHistNow) July 23, 2024