Cagliari (, , , ; ; ) is an Italian municipality and the capital of the island of Sardinia, an autonomous region of Italy. It has about 155,000 inhabitants, while its metropolitan city (including Cagliari and 16 other nearby municipalities) has about 420,000 inhabitants. According to Eurostat, the population of the Functional urban area, the commuting zone of Cagliari, rises to 476,975. Cagliari is the 26th largest city in Italy and the largest city on the island of Sardinia.
An ancient city with a long history, Cagliari has seen the rule of several civilisations. Under the buildings of the modern city there is a continuous stratification attesting to human settlement over the course of some five thousand years, from the Neolithic to today. Historical sites include the prehistoric Domus de Janas, very damaged by cave activity, a large Carthaginian era necropolis, a Roman era amphitheatre, a Byzantine basilica, three Pisan-era towers and a strong system of fortification that made the town the core of Spanish Habsburg imperial power in the western Mediterranean Sea. Its natural resources have always been its sheltered harbour, the often powerfully fortified hill of Castel di Castro, the modern Casteddu, the salt from its lagoons, and, from the hinterland, wheat from the Campidano plain and silver and other ores from the Iglesiente mines.
Cagliari was the capital of the Kingdom of Sardinia from 1324 to 1848, when Turin became the formal capital of the kingdom (which in 1861 became the Kingdom of Italy). Today the city is a regional cultural, educational, political and artistic centre, known for its diverse Art Nouveau architecture and several monuments. It is also Sardinia's economic and industrial hub, having one of the biggest ports in the Mediterranean Sea, an international airport, and the 106th highest income level in Italy (among 8,092 comuni), comparable to that of several northern Italian cities.
It is also the seat of the University of Cagliari, founded in 1607, and of the Roman Catholic Archdiocese of Cagliari, since the 5th century AD.
History
Early history
The Cagliari area has been inhabited since the Neolithic. It occupies a favourable position between the sea and a fertile plain and is surrounded by two marshes (which provides defence against attacks from the inland). There are high mountains nearby, to which people could evacuate if the settlement had to be given up. Relics of prehistoric inhabitants were found in the hill of Monte Claro (Monte Claro culture) and in Cape Sant'Elia (several domus de janas).
Karaly (, ) was established around the 8th/7th century BC as one of a string of Phoenician colonies in Sardinia, including Tharros. The etymology of the toponym is unknown. It almost certainly does not come from the Phoenician language, but it has some similarities with other Sardinian or Asia Minor toponyms. Its founding is linked to its position along communication routes with Africa as well as to its excellent port. The Phoenician settlement was located in the Stagno di Santa Gilla, west of the present centre of Cagliari. This was also the site of the Roman Portus Scipio, and when Arab pirates raided the area in the 8th century it became the refuge for people fleeing from the city. Other Phoenician settlements have been found at Cape Sant'Elia.
In the late 6th century BC Carthage took control of part of Sardinia, and Cagliari grew substantially under their domination, as testified by the large Tuvixeddu necropolis and other remains. Cagliari was a fortified settlement in what is now the modern Marina quarter, with an annexed holy area in the modern Stampace.
Sardinia and Cagliari came under Roman rule in 238 BC, shortly after the First Punic War, when the Romans defeated the Carthaginians. No mention of it is found on the occasion of the Roman conquest of the island but, during the Second Punic War, Caralis was the headquarters of the praetor, Titus Manlius Torquatus, whence he conducted his operations against Hampsicora and the Carthaginians. At other times it was also the Romans' chief naval station on the island and the residence of its praetor.
The Romans built a new settlement east of the old Punic city, the vicus munitus Caralis (i.e. the fortified community of Caralis) mentioned by Varro Atacinus. The two urban agglomerations merged gradually during the second century BC; to this process is perhaps attributable the plural name Carales.