Pays wallon. For Félix Rousseau, Walloon country is, after le Roman pays the old name of the country of the Walloons. Institutional aspects The term "state reform" in the Belgian context indicates a process towards finding constitutional and legal solutions for the problems and tensions among the different segments of the Belgian population, mostly Dutch-speakers of Flanders and French-speakers of Wallonia. In general, Belgium evolved from a unitary state to a federal state with communities, regions and language areas. Conceptual aspects Wallonia The area now known as Wallonia has been settled by various Celtic tribes and later by Roman and Frankish settlers. From the early Middle Ages up until the early modern period, the region has been separated between many city-states and external powers. Such changing rule brought variations to borders, culture, and language. The Walloon language, widespread in use up until the Second World War, has been dying out of common use due in part to its prohibition by the public school system, in favor of French. Starting from the end of the 19th century, the Walloon Movement, aiming to assert the identity of Wallons as French-speaking (rather than Wallon speaking) people of Belgium. In this context, the concept of Wallonia, as a heartland of the Walloon people was invented in 1886. Later, this was complicated by the federal structure given to Belgium, which splits Belgium into three communities with the privilege of using their own tongues in official correspondence, but also into three autonomous regions. The communities are: French community (though not Walloon, but sometimes controversially called Wallonia-Brussels), Flemish community (which uses Dutch), and German-speaking community. The division into political regions does not correspond with the communities: Flemish Region, Walloon Region (including the German community but generally called Wallonia), and the bilingual (French-Dutch) Brussels-Capital Region. Brussels - not Walloon and mostly French-speaking Many non-French-speaking observers (over)generalize Walloons as a term of convenience for all Belgian French-speakers (even those born and living in the Brussels-Capital Region). The mixing of the population over the centuries means that most families can trace ancestors on both sides of the linguistic divide. But, the fact that Brussels is around 85% French-speaking, but is located in Dutch-speaking Flanders, has led to friction between the regions and communities. The local dialect in Brussels, Brussels Vloms, is a Brabantic dialect, reflecting the Dutch heritage of the city. Walloons are historically credited with pioneering the industrial revolution