CHIANG MAI, Thailand -- "Thai" or "Tai"?
A simple letter "h" seems to make a great difference!
"Thai" refers to the main ethnic group living in Thailand, whereas "Tai" designates various ethnic groups related to the Thai, living within or outside the country: the Lao, the Yuan of Chiang Mai, the Shan and the Khon of Chiang Tung (the Shan state of Myanmar), the Lo of Yunnan in southern China.