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 in 1885. In 1919, the Lia Rumantscha was founded to serve as an umbrella organization for the various regional language societies. Additionally, the role of Romansh in schooling was strengthened, with the first Romansh school books being published in the 1830s and 1840s. Initially, these were merely translations of the German editions, but by the end of the 19th century teaching materials were introduced which took the local Romansh culture into consideration. Additionally, Romansh was introduced as a subject in teacher's college in 1860 and was recognized as an official language by the canton in 1880. Around the same time,