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 be found: Romansh schools, bilingual schools, and German schools with Romansh as a subject. In the Romansh schools, Romansh is the primary language of instruction during the first 3–6 years of the nine years of compulsory schooling, and German during the last 3–9 years. Due to this, this school type is often called the "so-called Romansh school". In practice, the amount of Romansh schooling varies between half and 4/5 of the compulsory school term, often depending on how many Romansh-speaking teachers are available. This "so-called Romansh school" is found in 82 municipalities of Grisons as of 2001. The bilingual school