Romansh language Grisons, the language borders largely stabilized in the 16th century and remained almost unchanged until the 19th century. This language area is often called the "Traditional Romansh-speaking territory", a term introduced by the statistician Jean-Jacques Furer based on the results of the Swiss censuses. Furer defines this language area as those municipalities in which a majority declared Romansh as their mother tongue in any of the first four Swiss censuses between 1860 and 1888. In addition, he includes Fürstenau. This represented 121 municipalities at the time, corresponding to 116 present-day municipalities. The villages of Samnaun, Sils im Domleschg, Masein, and
Romansh language and that any municipality is free to change its official language. In 2003, Romansh was the sole official language in 56 municipalities of Grisons, and 19 were bilingual in their administrative business. In practice, even those municipalities which only recognize Romansh as an official working language, readily offer services in German as well. Additionally, since the working language of the canton is mainly German and many official publications of the canton are available only in German, it is virtually impossible for a municipal administration to operate only in Romansh. Within the Romansh-speaking areas, three different types of educational models can