In her Ancient China and the Yue: Perceptions and Identities on the Southern Frontier, c. 400 BC-50 CE, historian Erica Brindley opens the book with a chapter entitled “Who were the Yue”?
That may seem like an easy question to answer given that starting from the final centuries of the first millennium BCE one can find many references in Chinese sources to “Yue” 越/粵 peoples who lived to their south, peoples who were sometimes also collectively referred to as the “Bai-yue” 百越/百粵 or “Hundred Yue.” So surely it must be possible to go through those sources and get a sense of who those people were and to piece together some of their history.
In actuality, however, that is not the case, and in this chapter Brindley clearly documents how little we can actually determine with certainty about the Yue from early Chinese texts.