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
Jauer dialect (Romansh) 2007, a collection of short stories written in Jauer ("Dschon Uein id atras istorias grischunas") was published In official use and as the language of school, Vallader has traditionally been used in the Val Müstair. In 2007, the valley was one of the first municipalities of the canton to introduce the pan-regional Romansh variety Rumantsch Grischun as the language of schooling and official use. In 2012 however, a municipal assembly voted to return to the use of Vallader in schools. As with other Romansh speakers, virtually all speakers of Jauer with the exception of children below school-age are also proficient