from Wikipedia Sarajevo:
Sarajevo is the capital city and largest urban center of Bosnia and Herzegovina, with an estimated total population of 419,030 people in the Sarajevo Canton as of June 2007. It is also the capital of the Federation of Bosnia and Herzegovina entity, and the de jure capital of the Republika Srpska entity, as well as the center of the Sarajevo Canton. Sarajevo is located in the Sarajevo valley of Bosnia proper, surrounded by the Dinaric Alps and situated around the Miljacka river. The city is famous for its traditional religious diversity, with adherents of Islam, Orthodoxy, Catholicism and Judaism peacefully coexisting there for centuries.
Although settlement in the area stretches back to prehistoric times, the modern city arose as an Ottoman stronghold in the 15th century. Sarajevo has attracted international attention several times throughout its history: In 1914 it was the site of the assassination that sparked World War I, while seventy years later it became the host city of the 1984 Winter Olympics. More recently, Sarajevo underwent the longest siege in modern military history during the Bosnian War. Today the city is recovering and adjusting to a post-war reality, as a major center of culture and economic development in Bosnia and Herzegovina. Sarajevo was also the first city in Europe and the second city in the world to have a full-time operational electric tram network running through the city, the first being San Francisco.