The history of Sicily has been influenced by numerous ethnic groups. It has seen Sicily controlled by powers, including Phoenician and Carthaginian, Greek, Roman, Vandal and Ostrogoth, Byzantine, Arab, Norman, Aragonese, Spanish, Austrians, British, but also experiencing important periods of independence, as under the indigenous Sicanians, Elymians, Sicels, the Greek-Siceliotes, and later as County of Sicily, and Kingdom of Sicily. The Kingdom was founded in 1130 by Roger II, belonging to the Siculo-Norman family of Hauteville. During this period, Sicily was prosperous and politically powerful, becoming one of the wealthiest states in all of Europe. As a result of the dynastic succession, the Kingdom passed into the hands of the Hohenstaufen. At the end of the 13th century, with the War of the Sicilian Vespers between the crowns of Anjou and Aragon, the island passed to the latter. In the following centuries the Kingdom entered into the personal union with the Spaniard and Bourbon crowns, while preserving effective independence until 1816. Sicily was merged with the Kingdom of Italy in 1861. Although today an Autonomous Region, with special statute, of the Republic of Italy, it has its own distinct culture.

The County of Sicily, also known as County of Sicily and Calabria, was a Norman state comprising the islands of Sicily and Malta and part of Calabria from 1071 until 1130. The county began to form during the Christian reconquest of Sicily (1061–91) from the Muslim Emirate, established by conquest in 965. The county is thus a transitional period in the history of Sicily. After the Muslims had been defeated and either forced out or incorporated into the Norman military, a further period of transition took place for the county and the Sicilians.