China had its period of city-states in antiquity, and something of this system remained in the Han (漢) dynasty. Therefore, in the Han the hsien (縣), hsiang (鄉里) and t'ing (亭) were all cities, each with a wall around it, and held some arrondissement (li (里)) in it. The peasants living in the cities tended the farms nearby outside the wall every day, and the lands farther away were left uncultivated. In the Han dynasty, there were few villages to be found like those of later times. When the centralization policy adopted by the government brought about the ruin of the hsiang and t'ing, the peasants moved to the hsien to seek employment, and therefore more and more fields were left uncultivated. These deserted areas were then occupied by the no...