==Regarding Huaxia== 
 To my knowledge Huaxia refers to the old China proper or Zhongyuan, i.e. it's the name of a place, rather than the name of a people. It's not until recently that Huaxia is being coined to refer to ancesters of Han Chinese, mostly because there simply isn't a specific term that describes this people prior to Han dynasty. Linguistically and genetically the dominant group in Huaxia were an early offshoot of Sino-Tibetan peoples, likely the Zhou people. Some have suggested that Shang, who contributed significantly to the genetic makeup of early Han Chinese, were in fact an early offshoot of Dongyi. Feel free to change it if you disagree.