According to Article 2 of the Constitution, the official language of France is French, a Romance language derived from Latin. Since 1635, the Académie française has been France's official authority on the French language, although its recommendations carry no legal weight. There are also regional languages spoken in France, such as Occitan, Breton, Catalan, Flemish (Dutch dialect), Alsatian (German dialect), Basque, and Corsican (Italian dialect). Italian was the official language of Corsica until 9 May 1859.