Romansh language the results of the Swiss censuses. The decline in percentages is only partially due to the Germanization of Romansh areas, since the Romansh-speaking valleys always had a lower overall population growth than other parts of the canton. Starting in the mid-19th century however, a revival movement began, often called the "Rhaeto-Romansh renaissance". This movement involved an increased cultural activity, as well as the foundation of several organizations dedicated to protecting the Romansh language. In 1863, the first of several attempts was made to found an association for all Romansh regions, which eventually led to the foundation of the "Società Retorumantscha"
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