The name Florence, in Italian "Firenze", is coming from the name of Fiorenza used during the period of maximum development of the city around the middle of the second millennium AC, which name, at its time, is coming from the latin word Florentia, the city built by the Romans.
The city of Arezzo extends itself around a hilly slope, surrounded by a plain; its development has been facilitated by location that historically has always crossed the main roads, therefore encouraging its first plan role in the commercial exchanges.
The building of the Florence Cathedral, immediately visible in its admirable lines from the hills surrounding the city, was started by Arnolfo di Cambio on September 8th 1296.