History of Sicily politics in Greece itself, leading Athens, for example, to mount the disastrous Sicilian Expedition in 415 BC during the Peloponnesian War. In Greek mythology, the goddess Athena threw Mount Aitna onto the island of Sicily and upon either the gigante Enceladus or Typhon during the giants' war against the gods. The Greeks came into conflict with the Punic trading communities, by now effectively protectorates of Carthage, with its capital on the African mainland not far from the southwest corner of the island. Palermo was a Carthaginian city, founded in the 8th century BC, named Zis or Sis ("Panormos" to the
Emirate of Sicily of the multi-ethnic County and subsequent Kingdom of Sicily, until those who had not already converted were expelled in the 1240s. Until the late 12th century, and probably as late as the 1220s, Muslims formed a substantial portion of the island's population. Their influence remains in some elements of the Sicilian language, as well as surnames and locations. In 535, Emperor Justinian I returned Sicily to the Roman Empire, now ruled from Constantinople exclusively. As the power of what is now known as the Byzantine Empire waned in the West, Sicily was conquered by the Rashidun Caliphate during the reign