(1) Brave. ② Dai people (Thai/Lao/Shan/Assam) call plateau basin or valley flat land "Meng". (3) The administrative divisions of the ancient Dai-Thai nation state, such as Jinglong Prefecture (now southwest Yunnan), were composed of twelve "Meng"; Luchuan country (now western Yunnan and northern Myanmar) consists of dozens of "Meng" of different sizes; There are hundreds of little "Meng" in the eight hundred daughter-in-law countries (now northern Thailand).
(4) Thailand, Laos, Myanmar, China, Yunnan, northwestern Vietnam and other Dai and Thai nationalities called the early city-state "Meng"; The big "Meng" controls the small "Meng" and forms an alliance country. (5) The proper place names of modern Dai-Tai ethnic settlements; For example, many county names or town names in Xishuangbanna have the word "Meng", and many Dai and Thai ethnic settlements in Thailand, Laos, Myanmar and Vietnam have names with the sound of "Meng". (6) name.