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 language in the Surses, but has mostly disappeared from the Albula Valley. The highest proportion of habitual speakers is found in Salouf with 86.3%, the lowest in Obervaz with 18.9%. In these areas, many Romansh speakers only speak German with their spouses as an accommodation or because of a habit, though they sometimes speak Romansh to their children. In most cases, this is not because of a will to preserve the language, but because of other reasons such as Romansh having been their own childhood language or a belief that their children will later find it easier to learn additional