Romansh language the most comprehensive collection of Romansh words, which can also be used in the idioms with the necessary phonetic shifts. The signatories of "Pro Rumantsch" stress that Romansh needs both the idioms and Rumantsch Grischun if it is to improve its chances in today's communication society. In Switzerland, official language use is governed by the "territorial principle": Cantonal law determines which of the four national languages enjoys official status in which part of the territory. Only the federal administration is officially quadrilingual. Romansh is an official language at the federal level, one of the three official languages of the Canton
Romansh language Romansh-speaking neighbors, for instance, Oberhalbstein and Medel and Tujetsch in the Surselva region. The Germanization of Chur had particular long-term consequences. Even though the city had long before ceased to be a cultural center of Romansh, the spoken language of the capital of the Diocese of Chur continued to be Romansh until the 15th century. After a fire in 1465 which virtually destroyed the city, many German-speaking artisans who had been called in to help repair the damage settled there, causing German to become the majority language. In a chronicle written in 1571–72, Durich Chiampell mentions that Romansh was still