Provinces of Belgium
Most of the provinces take their name from earlier duchies and counties of similar location, while their territory is mostly based on the departments installed during French annexation. At the time of the creation of Belgium in 1830, only nine provinces existed, including the province of Brabant, which held the city of Brussels. In 1995, Brabant was split into three areas: Flemish Brabant, which became a part of the region of Flanders; Walloon Brabant, which became part of the region of Wallonia; and the Brussels-Capital Region, which became a third region. These divisions reflected political tensions between the French-speaking Walloons and the Dutch-speaking Flemish; the Brussels-Capital Region is officially bilingual.
Constitution of Belgium
Article 2 divides Belgium into three communities: the Flemish Community, the French Community and the German-speaking Community, whereas Article 3 divides Belgium into three regions: the Flemish Region, the Walloon Region and the Brussels Region. Article 4 divides Belgium into four language areas: The Dutch language area, the French language area, the bilingual (French and Dutch) area of Brussels-Capital and the German language area. Each municipality of the Kingdom is part of one of these four language areas only. The borders of the language areas can be changed or corrected only by a law supported by specific majorities of each language group of each Chamber.