Rise and Fall of Qiang and Di Nationality from the Pre-Qin to the Sui Dynasty

From the pre-Qin Dynasty to the Cao Wei,Qiang and Di nationality were always in the military state with Central Plains.National relation improved greatly in the Cao Wei period.In the period of the Sixteen States,Qiang and Di nationality developed gradually in the long military affairs,and they began to a new battle on cities and field.The Qiang and Di Dynasty came to fall in the Sui Dynasty.The data on surname in Luoyang existent caved stone provided the history information that Qiang and Di nationality composed with the Han nationality and the structure of nationalities in the Central Plains.