Tuscan (Italian: dialetto toscano [djaˈlɛtto toˈskaːno; di.a-]; locally: vernacolo) is a set of Italo-Dalmatian varieties of Romance mainly spoken in Tuscany, Italy. Standard Italian is based on Tuscan, specifically on its Florentine dialect, and it became the language of culture throughout Italy due to the prestige of the works by Dante Alighieri, Petrarch, Giovanni Boccaccio, Niccolò Machiavelli, and Francesco Guicciardini. It would later become the official language of all the Italian states and of the Kingdom of Italy when it was formed.