Wei Yuan was a famous progressive historian during the early times of modern China. He was concerned about the country's destiny, as well as the weal and woe of the people. In order to defend his country against enemies, he investigated into the history and the course of change and development at the border areas. His researches involved textual criticism and pragmatism and the fact that he investigated into the history and the course of change and development at the border areas embodies his inclination. Wei Yuan played an important role in the academic circle concerning investigating into th...