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.
Flamenpolitik
Von Bissing convened a commission to organise the division of the country, and in a decree issued on March 21, 1917, separated Belgium into two administrative areas: Flanders and Wallonia. A Flemish government, known as the Raad van Vlaanderen or RVV, was established. Taking into account the 1912 decision by Walloon nationalists to recognize Namur as the most central city of Wallonia, he established the Walloon administration there. Wallonia then consisted of four southern Belgian provinces and one part of the province of Brabant: the district of Nivelles, realizing also another revendication of the Walloon movement: the creation of the Walloon Brabant. The Flemish region had Brussels as its capital, and was made up of the four northern provinces of Belgium, as well as the districts of Brussels and Leuven. This was the first attempt at dividing Belgium along linguistic lines.