Romansh language the tertiary level, the University of Fribourg offers Bachelor- and Master programs for Romansh language and literature. The Romansh department there has been in existence since 1991. The University of Zürich also maintains a partial chair for Romansh language and literature together with the ETH Zürich since 1985. Whereas Romansh was spoken as far north as Lake Constance in the early Middle Ages, the language area of Romansh is today limited to parts of the Swiss canton of Grisons; the last areas outside the canton to speak Romansh, the Vinschgau in South Tyrol, became German-speaking in the 17th century. Inside
Romansh language speakers, but the regional varieties could continue to be used when addressing a single region or municipality. In schools, Rumantsch Grischun was not to replace the regional dialects but only be taught passively. The compromise was largely accepted by both sides. A further recommendation in 1999, known as the "Haltinger concept", also proposed that the regional varieties should remain the basis of the Romansh schools, with Rumantsch Grischun being introduced in middle school and secondary school. The government of Grisons then took steps to strengthen the role of Rumantsch Grischun as an official language. Since the cantonal constitution explicitly named