Japan has been divided into provinces (kuni) since ancient times. Provinces were subdivided into districts (koori). They were established as both administrative and geographic regions. During the late Muromachi period and into the Warring States era the provinces were displaced as administrative units by the fan, feudal domains. During the time of Toyotomi Fideyoxi, they were completely supplanted as administrative units by the fan. Today Japan consists of 15 dô, the Kinai, and several autonomous regions.