Establishment of the Thai Kingdom in Southeast Asia in the 13th century and its historical impact

This paper is a study that examines the process of establishing the Thai Kingdom in continental Southeast Asia in the 13th century and its historical impact. Accordingly, we would like to examine what social influences led to its establishment in mainland Southeast Asia and how the foundation was laid. During the first millennium, Thai tribes from Yunnan - China migrated to the South and occupied the mountainous areas between Nanzhao (Chinese: 南詔國) and early ancient states in Indochina (Northern Southeast Asia). Since the 8th century, early Thai states began to be established in Mainland Southeast Asia, but have yet to establish an important position in regional political life. After the Mongols annexed the Song dynasty and established the Yuan dynasty in China (1271-1368), the invasions of Southeast Asia in the 13th century belonged to this dynasty. And the birth and power of the Thai kingdoms had to wait until the end of the 13th century - when the wave of invasions of the Yuan dynasty began to move into Southeast Asia. Had to wait until the 13th century, on the territory of ancient kingdom in Southeast Asia (such as Khmer, Pagan, Dai Viet, Srivijaya), the Thai people established a number of Thai states: Sukhothai, Lan Na, La Vo and some other settlements. The Thai people made efforts to settle here, and as a result, they were strengthened by the acceptance of the local community, giving them an advantageous foundation after migration. In conclusion, it was confirmed that this event had a significant impact on changing the geopolitical map of Southeast Asia in the 13th century.