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 earlier, pre-literature tradition of using Romansh in administrative and legal situations, of which no evidence survives. In their prefaces, the authors themselves often mention the novelty of writing Romansh, and discuss an apparently common prejudice that Romansh was a language that could not be written. The first writing in the Sursilvan and Sutsilvan dialects appears in the 17th century. As in the Engadine, these early works usually focused on religious themes, in particular the struggles between Protestants and Counter-Reformers. Daniel Bonifaci produced the first surviving work in this category, the catechism "Curt mussameint dels principals punctgs della Christianevla Religiun", published