History of Belgium on matters of religion and, in recent decades, it has faced new divisions over differences of language and unequal economic development. This ongoing antagonism has caused far-reaching reforms since the 1970s, changing the formerly unitary Belgian state into a federal state, and repeated governmental crises. It is now divided into three regions: Flanders (Dutch-speaking) in the north, Wallonia (French-speaking) in the south, and bilingual Brussels in the middle. There is also a German-speaking population along the border with Germany that was granted to Prussia in the Congress of Vienna in 1815 but added to Belgium following the 1919 Treaty of
Demographic history of the Vilnius region itself), and 82.4% of the population in Šalčininkai rayon/county (currently known as Šalčininkai district municipality). The Jews living in Vilnius had their own complex identity, and labels of Polish Jews, Lithuanian Jews or Russian Jews are all applicable only in part. The majority of the Yiddish speaking population used the Litvish dialect. The Vilnius urban region is the only area in East Lithuania that doesn't face decline in population density. Poles are the majority of native rural population in the Vilnius region. The share of the Polish population across the region is decreasing, mainly due to natural decline of rural