Sicily is the largest island in the Mediterranean Sea and one of the 20 regions of Italy. It is one of the five Italian autonomous regions and is officially referred to as Regione Siciliana. The region has 5 million inhabitants. Its capital city is Palermo. Sicily is in the central Mediterranean Sea, south of the Italian Peninsula, from which it is separated by the narrow Strait of Messina. Its most prominent landmark is Mount Etna, one of the tallest active volcanoes in Europe, and one of the most active in the world, currently 3,357 m high. The island has a typical Mediterranean climate. The earliest archaeological evidence of human activity on the island dates from as early as 12,000 BC. By around 750 BC, Sicily had three Phoenician and a dozen Greek colonies and it was later the site of the Sicilian Wars and the Punic Wars.