Isan is the northeastern region of Thailand Pak Isan (also written as Isaan, Issan, or Esarn; Thai/Isan อีสาน) is the northeast region of Thailand. ... The Shan are an ethnic group of Southeast Asia. ... The Dai is the officially recognized name of an ethnic group living in southern Yunnan Province of China, and also in Laos, Vietnam, Thailand, and Myanmar. ... The Dai is the officially recognized name of an ethnic group living in southern Yunnan Province of China, and also in Laos, Vietnam, Thailand, and Myanmar. ... The Nung are an ethnic minority in Vietnam. ... The Tai languages are a subgroup of the Tai Kadai language family. ...
The highest point in the territory is Tai Mo Shan, at a height of 958 metres (3,142 ft).
Groups such as the Hakka and Teochew are also substantial.
Since the British handover to China, a new group of immigrants from mainland China have increased the ethnic diversity of the Chinese population and intensified the usage of Mandarin in the territory, in addition to the indirect effects of closer commuication with mainland China, where Mandarin is the official language.
Grabowsky Volker, "The Thai and Lao ethnic minorities in Cambodia: Their history and fate after decades of warfare and genocide," in Thomas Engelbert and Hans-Dieter Kubitschek (eds.), Ethnic minorities and politics in Southeast Asia, Frankfurt am Main (etc.): Peter Lang [in press].
Ladwig Patrice, "The mimetic representation of the dead and social space among the Buddhist Lao," Tai Culture, 7.2 (2002).