Great Wall Wasn't the Former Boundary of Ancient China

Great Wall wasn't the former boundary of China, Why?
The Great Wall is a product of contradictions between various ruling cliques in ancient China. It is scattered in all direction--south, north, east and west. More than 20 walls had been built in some sections as reinforcement. Prefectures and counties were set up by the Chinese government since the time of Qin Shi Huang inside and outside the Great Wall.

The Great Wall blunt during the Han Dynasty went northward beyond the limit of the Qin-wall by several hundred kilometers and even l,000 km in some places. In Ming Dynasty Nuergan Du Si (a sort of provincial governmental institute) had been set up in a place now in the Soviet Union called Nicholayevsk, more than l,000 km from Shanhaiguan Pass. This was a Chinese organ dealing with military and civil affairs in the region. The Great Wall, therefore, had never been China's boundary. Nor was it a demarcation line for fixing administrative areas in China.