The empire may still include Bingzhou, but there is only one ethnicity: Huaxia!
Whether it is Bingzhou or Qin, all are the descendants of Huaxia, and even Baiyue, Yelao, the Dian Kingdom, or the Thirty-Six Kingdoms of the Western Regions are all descendants of the three great cultural progenitors of Huaxia.
The Yellow Emperor, the Flame Emperor, and Chiyou!
Chapter 1111