 The mouth of the Salso has been advancing during historical times, and wind and wave formerly distributed its sand and silt to the beaches of the Gulf of Gela.Himera was the ancient name of two rivers in Sicily, the Imera Settentrionale flowing to the north into the Tyrrhenian Sea, and the Salso to the south coast of the island, but which, by a strange confusion, were regarded by many ancient writers as one and the same river, which is in consequence described as rising in the center of the island, and flowing in two different directions, so as completely to divide Sicily into two parts.According to Vibius Sequester, this idea dates back to the time of Stesichorus, who was himself a native of the city of Himera.