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 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