Researching of Vietnam Prehistory
by Trương Thái Du
Published: May 30, 2017.
This book affirms that Nan Jiao 南交 , Jiao Zhi 交阯 , Xiang Jun 象郡 , Jiu Zhen 九真, and Ri Nan 日南 are united concepts related to Chinese Classical Astronomy. Việt 越 and Âu 歐 are homophones, mean water or water area, and their derivative sense is Country. Lạc 駱 is equivalent and has a birth process similar to that of Việt and Âu. Hung King 雄王 is a word created at a much later time than Lac King 駱王.