Cochin in India, their first headquarters in the Malabar Coast. It was subsequently called "Cochinchina". History Early Mentions Numerous Chinese sources, dated to the Spring & Autumn and Warring States periods, mentioned a place called Jiao(zhi) to the south of Ancient China. Book of Rites is the earliest extant source to associate the name Jiaozhi with the Nanman. However, Vietnamese historian Đào Duy Anh locates Jiaozhi (which was mentioned in ancient texts) only south of Mount Heng (衡山) (aka 霍山 Mount Huo or 天柱山 Mount Tianzhu), within the lower part of Yangtze's drainage basin, and nowhere farther than today Anhui province in China (i.e. not in today northern Vietnam); accordingly, Đào defines Jiao(zhi) as "lands in the south which bordered [ancient Chinese's] territories". Van Lang The native state of Văn Lang is not well attested, but much later sources name as one of the realm's districts (). Its territory purportedly comprised present-day Hanoi and the land on the right bank of the Red River. According to tradition, the Hung kings directly ruled Mê Linh while other areas were ruled by dependent Lac lords. The Van Lang kingdom fell to the Âu under prince Thục Phán around 258 BC. Âu Lạc Thục Phán established his capital at Co Loa in Hanoi's Dong Anh district. The citadel was taken around 208 BC by the Qin general Zhao Tuo. Nanyue Zhao Tuo declared his independent kingdom of Nanyue in 204 and organized his Vietnamese territory as the two commanderies of Jiaozhi and Jiuzhen (; present-day Thanh Hóa, Nghệ An, and Hà Tĩnh). Following a native coup that killed the Zhao king and his Chinese mother, the Han launched two invasions in 112 and 111 BC that razed the Nanyue capital at Panyu (Guangzhou). When Han dynasty conquered Nanyue in 111 BC, the Han court divided it into 9 commanderies, one commandery called Jiaozhi was the center of Han administration and government for all 9 areas. Because of this, the entire areas of 9 commanderies was sometime called Jiaozhi. From Han to Tang, the names Jiaozhi and Jiao county at least was used for a part of the Han-era Jiaozhi. In 670, Jiaozhi was absorbed into a larger administrative called Annan (Pacified South). After this, the name Jiaozhi was applied for the Red River Delta and most or all of northern Vietnam (Tonkin). Han dynasty The Han dynasty received the submission of the Nanyue