One of the most interesting peculiarities of this island is its dialect. Influenced by the proximity and the Italian domination, Corsica had Italian as its official language until 1859, from 1 September of that same year, in fact, the state language became French. However, the Corsican dialect survives, which is divided into two branches:
the Corso Cismontano – spoken in the areas of Bastia, Corte, Calvi, Isola Rossa, Aleria and Saint Florent – influenced by the Tuscan dialect, the most widespread on the island.
the course beyond the mountains – spoken in the southern part of the island, Ajaccio, Sartene, Porto Vecchio and Propriano – deeply linked to the Sardinian dialect