another 1,500 died. Mussolini was arrested on 25 July 1943. On the date of the Italian Armistice 8 September 1943 the city was occupied by the Germans. The Pope declared Rome an open city. It was liberated on 4 June 1944. Rome developed greatly after the war as part of the "Italian economic miracle" of post-war reconstruction and modernisation in the 1950s and early 1960s. During this period, the years of la dolce vita ("the sweet life"), Rome became a fashionable city, with popular classic films such as Ben Hur, Quo Vadis, Roman Holiday and La Dolce Vita filmed in the city's iconic Cinecittà Studios. The rising trend in population growth continued until the mid-1980s when the comune had more than 2.8 million residents. After this, the population declined slowly as people began to move to nearby suburbs. Government Local government Rome constitutes a comune speciale, named "Roma Capitale", and is the largest both in terms of land area and population among the 8,101 comuni of Italy. It is governed by a mayor and a city council. The seat of the comune is the Palazzo Senatorio on the Capitoline Hill, the historic seat of the city government. The local administration in Rome is commonly referred to as "Campidoglio", the Italian name of the hill. Administrative and historical subdivisions Since 1972, the city has been divided into administrative areas, called municipi (sing. municipio) (until 2001 named circoscrizioni). They were created for administrative reasons to increase decentralisation in the city. Each municipio is governed by a president and a council of twenty-five members who are elected by its residents every five years. The municipi frequently cross the boundaries of the traditional, non-administrative divisions of the city. The municipi were originally 20, then 19, and in 2013, their number was reduced to 15. Rome is also divided into differing types of non-administrative units. The historic centre is divided into 22 rioni, all of which are located within the Aurelian Walls except Prati and Borgo. These originate from the 14 regions of Augustan Rome, which evolved in the Middle Ages into the medieval rioni. In the Renaissance, under Pope Sixtus V, they again reached fourteen, and their boundaries were finally defined under Pope Benedict XIV in 1743. A new subdivision of the city under Napoleon was ephemeral, and there were no serious changes in the organisation of the city until 1870 when Rome became