Romansh language published in 1703, though either the Catholic variety of Sursilvan or Putèr was more commonly used there until the 20th century. In the 16th century, the language border between Romansh and German largely stabilized, and it remained almost unchanged until the late 19th century. During this period, only isolated areas became German-speaking, mainly a few villages around Thusis and the village of Samnaun. In the case of Samnaun, the inhabitants adopted the Bavarian dialect of neighboring Tyrol, making Samnaun the only municipality of Switzerland where a Bavarian dialect is spoken. The Vinschgau in South Tyrol was still Romansh-speaking in the
Romansh language Ladin (Putèr and Vallader) to have equal official standing. No explicit mention of any official language was made in the cantonal constitutions of 1803, 1814, and 1854. The constitution of 1880 declared that "The three languages of the Canton are guaranteed as national languages, without specifying anywhere which three languages are meant. The new cantonal constitution of 2004 recognizes German, Italian, and Romansh as equal national and official languages of the canton. The canton used the Romansh varieties Sursilvan and Vallader up until 1997, when Rumantsch Grischun was added and use of Sursilvan and Vallader was discontinued in 2001. This