the 15th century, giving it a unique character within the Balkan region. This conversion appears to have been not sudden but a gradual process based on various rules imposed by the Ottomans — it took more than a hundred years for the number of Muslims to become the majority religion. The general view among scholars is that the Islamization of the Bosnian population was not the result of violent methods of conversions but was, for the most part, peaceful and voluntary. The first time Prnjavor was mentioned in recorded history was in 1829. The current settlement itself is believed to be of a more recent date. In the mid-19th century and according to the records of the travel writer Jukić, Prnjavor had about a hundred houses and around a thousand inhabitants. Austria-Hungary In 1878 Austria-Hungary occupied Bosnia and the authorities decided the Prnjavor area was under-populated. Efforts were undertaken to attract settlers from other parts of the empire and consequently the municipal area was settled by Italians, Ukrainians, Czechs, Poles, Hungarians and German-speaking folk from Austria, Germany, Bohemia, Hungary and Russia. Although over half the population remained Eastern Orthodox Serbs, the multi-ethnic character of the population led the municipality of Prnjavor to be nicknamed "Little Europe". Yugoslavia In 1918 Bosnia became part of Kingdom of Serbs, Croats and Slovenes and all immigration stopped. During the interwar period between 1918 and 1941 Prnjavor underwent more significant economic development through the opening of craftsman workshops, hotels, more shops and a few manufacturing plants. From 1929 to 1941 Prnjavor was part of the Vrbas Banovina of the Kingdom of Yugoslavia. Following the collapse of internal security during World War II the Nazis decided to evacuate the Volksdeutsche (ethnic German) population from Bosnia and a treaty to this effect was signed with the Croatian Ustaše regime on 30 September 1942. After 1945 the Communist regime of Josip Broz Tito repopulated the Volksdeutsche villages with Serbs and destroyed or obscured all evidence of German history and heritage in the region. During the Socialist period of the Socialist Federal Republic of Yugoslavia Prnjavor was not a highly developed municipality within Bosnia and Herzegovina. After the war that erupted after the collapse of the Socialist Federal Republic of Yugoslavia (SFRY), Prnjavor became part of the North-Eastern entity of Bosnia and Herzegovina, the Republika Srpska, as per the Dayton Agreement. The warring that took place in the very