1 321-1323 (during the reign of Yuan Yingzong) The whole country was divided into 12 first-class administrative regions:1Hanshu Province and1Hanshu Province.

Central province, also known as metropolitan province and hinterland, is the central province directly under the central government, including Beijing, Tianjin, Shanxi, Hebei, Shandong, and parts of Henan and Inner Mongolia.

Attached are the administrative map of Yuan Dynasty and the map of modern China.