Greater Serbia the Kingdom of Serbia retreated from Durrës in April 1913 under pressure of the naval fleet of Great Powers, but it remained in other parts of Albania for the next two months. The secret military society called Unity or Death, popularly known as the Black Hand, headed by Serbian colonel Dragutin Dimitrijević Apis, which took an active and militant stance on the issue of a Greater Serbian state. This organization is believed to have been responsible for numerous atrocities following the Balkan Wars in 1913. In 1914, Young Bosnia member Gavrilo Princip assassinated Archduke Franz Ferdinand in Sarajevo, which set
History of Sarajevo more modern and advanced nation than the Ottoman Empire, Sarajevo was quickly westernized and adapted to their standards. A western education system was implemented, and Sarajevo's inhabitants started writing in Latin script for the first time. By 1910, Sarajevo was populated by just under 52,000 people. Just four years later the most famous event in the history of Habsburg Sarajevo, and perhaps in the city’s history, occurred. The Assassination in Sarajevo, during which a young Serb nationalist Gavrilo Princip assassinated Archduke Franz Ferdinand of Austria and his wife Sophie, Duchess of Hohenberg, on their visit to the city, started a