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 summed up by statistician Jean-Jacques Furer in 2005. In addition, linguist Regula Cathomas performed a detailed survey of everyday language use, published in 2008. Virtually all Romansh-speakers today are bilingual in Romansh and German. Whereas monolingual Romansh were still common at the beginning of the twentieth century, they are now only found among pre-school children. As Romansh linguist Ricarda Liver writes: The language situation today consists of a complex relationship between several diglossia, since there is a functional distribution within Romansh itself between the local dialect, the regional standard variety, and nowadays the pan-regional variety Rumantsch Grischun as well; and