Names of Vietnam
From the 3rd century BC the term was used for the non-Chinese populations of south and southwest China and northern Vietnam, with particular states or groups called Minyue, Ouyue, Luoyue (Vietnamese: Lạc Việt), etc., collectively called the Baiyue (Bách Việt). The term Baiyue/Bách Việt first appeared in the book Lüshi Chunqiu compiled around 239 BC.