It was established by a decree of 22 November 1935.
The current structure of the educational system was established by decree in 1994.
It was established on 5 February 1958 by a decree of the national government.
It was established by a decree on February 11, 1976.
It was established by a decree issued on May 25, 1975.
It was established on 8 October 1999 by presidential decree № 1299.
A municipal government was established by decree on April 8, 1844.
It was established by presidential decree on 5 October 1996.
It was established on 22 October 1956 by a presidential decree.
The canton was established by a decree of May 28, 1885.
