Tai , believing to be the ancestor of Thai people, came from the Altai Mountain Range in Southern Mongolia. They founded the Nanchao Kingdom in Southern China, which now is Yunnan, Kwangsi and Canton.

         Later, a great number of them migrated south. They settled and set up small city-states, which are rapidly grown into powerful kingdoms. Including Lan Na (in Northern Thailand), Sukothai (in Central Thailand) and Lan Xang (in the land of Laos).

         Lanna Kingdom endures for 600 years and remained autonomous into the 19th century. Chao Khun Mengrai, the first Lanna ruler has extended the rule into Burma. The golden age of Lanna was in the reign of Ku Na and Tilok.

         Lanna Kingdom has distinctive cultures and arts (Chiangsaen arts) that can be seen in the North of Thailand. The Emerald Buddha, the most reverent buddha image of Thai people, was created in this period.

         Sukhothai is the golden era of Thai history. Its name means "The dawn of happiness", which was civilized in religion, culture, and arts.

         Sukhothai was established by King Sri Intrathit, a king of Phra Ruang Dynasty, who has declared independence from Khmer Empire.

         Sukhothai Kingdom prospered and expanded widely, to Khong River in the east and Singapore in the south.The state, on the land of fertility, was governed by paternal and benevolent kings.