The most recent and accurate theory about the origin of the Tai people stipulates thatGuangxi province in China is really the Tai motherland instead of Yunnan province. A large number of Tai people, known as the Zhuang, still live in Guangxi today. Around 700 AD, Tai people who did not come under Chinese influence settled in what is now Dien Bien Phu in modern Vietnam according to the Khun Borom legend. From there, the Tais began to radiate into northern highlands and founded the cities of Luang Prabang and Chiang Saen