Qin Dynasty, Binggou had been the militarydefense.
What was the reason? Binggou was the
boundary of Huangtu
Plateau and Inner Mongolia Grassland,
where Han people
farmed and northern ethnic minority
people herded livestocks.
With the development of Northern ethnic
Qingshihuang emperor faced the increasing
At that time, the capital of Qin was
Xi¨an, which was not far
from Binggou. In order to protect the
political center, he put
great emphasis on developing agriculture,
which was the main
resource of national budget. In this