Although Sicily is part of Italy and almost all Sicilians speak fluently the Italian language, the old Sicilian language (that is not a dialect despite what people says) is still alive and kicking. It is slightly different from town to town, from east to west, but all these languages are based on the old Sicilian language.

As Wikipedia says “Some assert that Sicilian represents the oldest Romance language derived from Vulgar Latin, but this is not a widely held view amongst linguists and is sometimes strongly criticized” and “The Ethnologue describes Sicilian as being distinct enough from Standard Italian to be considered a separate language and is recognized as a minority language by UNESCO”.