There was a huge link between Cao Yun (漕运 cancal transport) and the long extension of Chinese feudal society. 'Cao Yun' consolidated tile stabilization of autocracy which was the material base of strengthening the central autocracy of feudal dynasty'; the characteristic of the robbery of 'Cao Yun' restrained the social economy's development immensely, especially, delaying the pace of advance in the developed district; 'Cao Yun' limited tile development of civil market in some level, and the prosperity brought by 'Cao Yun' along the river was ...
