proximity of Prnjavor e.g. in Derventa, changed the demography in Bosnia and Herzegovina, according to the ICRC, a total of 2,2 million people had to flee their homes from different parts of Bosnia and Herzegovina. Many people never returned, changing the ethnic composition in all parts of Bosnia and Herzegovina. Demographics Population Ethnic composition In the end of the 19th century, during Austria-Hungary, then sparsely populated area of the Municipality of Prnjavor was colonized by settlers from Eastern and Central Europe (Ukraine, Italy (South Tirol), Hungary, Poland, Germany, Austria, Bohemia, Slovakia, etc.). At the time of the former Socialist Federal Republic of Yugoslavia and due to numerous national minorities (about 20) Prnjavor was called "Little Europe". Except the Ukrainian, Italian and Czech national minorities the others were mainly small communities. But, even today, besides the constitutive nations of Serbs, Croats, and Bosniaks, a small number of Hungarians, Slovaks, Germans, Polish, Slovenes, Bulgarians, Romanians, Macedonians, Jews, and Russians live in Prnjavor. According to the census of 1991 there were still 732 Italians in Bosnia and Herzegovina, thereof around 2/3 lived in municipality of Prnjavor, while at the end of the second world war most of the Italians had returned to Italy to today's Trento province. The Italians populated mainly the village of Štivor in Prnjavor, where in 1991 73.13% of the population spoke Italian as their mother tongue. The village school "Šibovska" teaches in Italian language "lingua d'insegnamento italiana". In 1986, it had 91 pupils and eight teachers. The Polish population that arrived during the Austro-Hungarian empire, mostly left after the second world war in the population exchanges where German population left from the Western Poland to Germany after redrawing of borders, and Polish population from different parts of Europe, including Prnjavor, returned to the empty areas in Western Poland, mainly Boleslawiec. Economy The municipality of Prnjavor has the following land resources: farmlands (/68.8%), cultivable land (), forest resources () and water resources (Ukrina River, Drenova Lake). Considering that almost four-fifths of the population live in rural areas and reckoning with great areas of cultivable land, with all reason agriculture has been recognized as the key branch of the economy considering the Municipality development. In the area of Prnjavor more than of land are cultivated while is planted with fruit crops. Out of the total area of the cultivated farmlands, the cereal crops share is 77%, vegetable crops 10% while the