Daxia

Daxia is mentioned by, for instance, Chapter VIII (Xiao Kuang) of the Guanzi (7th Century BCE): "In the west [Duke Huan]... having passed through the valleys of the Taihang and Bier, took captive the chief of the Da Xia. Further to the west, he subjugated the Xi Yu of Liusha, and for the first time the Rong People of Qin were obedient." (Taihang and Bier are located along the Shanxi-Hebei border in China.)

These contacts immediately led to the dispatch of multiple embassies from the Chinese, initiating the development of the Silk Road.