Where it all started: Sarajevo markets WWI credentials Sarajevo is no stranger to conflict, but while the wounds of the Bosnian war's siege are still raw, the city is seeking to cash in on its historical claim as the place where World War I was ignited. On June 28, 1914, the assassination of the heir to the Austro-Hungarian empire Archduke Franz Ferdinand and his wife by 20-year-old Serb nationalist Gavrilo Princip was the spark that set off the Great War, and the 100th anniversary of that event will be commemorated in Sarajevo. Images and soundbites to complete VID612645_EN