A city-state is a region controlle exclusively by a city, usually having sovereignty. Historically, city-states have often been contingent of larger cultural areas, as in the city-states of ancient Greece (such as Athens, Sparta and Corinth), the Phoenician cities of Canaan (such as Tyre and Sidon), the Mayans of pre-Columbian Mesoamerica (including sites such as Chichen Itza and El Mirador), the central Asian cities along the Silk Road (which includes Samarkand and Bukhara), or the city-states of Northern Italy (especially Florence and Venice). More recently the neologism citistate has been developed, referring to the city as the center of a 'city region' including relocated urban business like factory and company towns, and supply economies like agricultural, timber and mineral extraction whose commodities find a market in the city. The term "city-state" should not be confused with "independent city", which refers to a city which is not administered as part of another local government area (eg, a county).