The Tuscan dialect (dialetto toscano [diaˈlɛtto tosˈkaːno]) is an Italo-Dalmatian lect mainly spoken in Tuscany, Italy.Standard Italian is based on Tuscan, specifically on its Florentine variety. Italian became the language of culture , thanks to the prestige of the masterpieces of Dante Alighieri, Francesco Petrarca, Giovanni Boccaccio, Niccolò Machiavelli and Francesco Guicciardini.