Their duties are delegated to them by the central government and they are ruled by a municipal council that is elected every four years. Municipal mergers have reduced the total number of municipalities by two-thirds since the first official boundaries were created in the mid 19th century.
The duties of these entities are assigned by the central government, and they are governed by an elected municipal council that holds office every four years. Municipal mergers have significantly reduced the total number of municipalities by two-thirds since the first official boundaries were established in the mid 19th century.