Causes of World War I corrective." British Diplomat Arthur Nicolson wrote in May 1914, “Since I have been at the Foreign Office I have not seen such calm waters.” On 28 June 1914, Archduke Franz Ferdinand of Austria, heir presumptive to the Austro-Hungarian throne, and his wife, Sophie, Duchess of Hohenberg, were shot dead, by two gun shots in Sarajevo by Gavrilo Princip, one of a group of six assassins (five Serbs and one Bosniak) coordinated by Danilo Ilić, a Bosnian Serb and a member of the Black Hand secret society. The assassination is significant because it was perceived by Austria-Hungary as an existential challenge
Bogdan Žerajić action brought Young Bosnia to the public attention. Žerajić's attempt of assassination had a significant influence on young people of Bosnia and Herzegovina. After this attempt new revolutionary circles were established in Sarajevo, Mostar, Tuzla and Banja Luka. An evening before the assassination of Archduke Franz Ferdinand of Austria, Gavrilo Princip, Čabrinović and Ilić visited the grave of Žerajić for the last time. Žerajić's proclamation "He who wants to live, let him die. He who wants to die, let him live", was quoted by Gavrilo Princip in one of the songs he wrote (). The official press in Bosnia and