The small historic park of Sukhothai (3.38 km2) constitutes a masterpiece of the first Siamese architectural style. The three sites are representative of the first period of Siamese art and the creation of the first Thai state.
Beginning in the 12th century, a people from Yunnan in China settled in the northern regions of the Khmer state. Known as the Thai (free men), they organized themselves in small communities. A Thai prince married a Khmer woman, then rebelled against the central power and created the first Siamese state, calling it the kingdom of Sukhothai after the name of its capital city. Ramkhamhaeng (or Rama the Strong), second son of the founder of the state (c. 1280-1318) was one of the most important Thai sovereigns, for he brought his state extensive territory through his military victories. He invented the Siamese alphabet (Khmer script) and imposed strict observance of the Buddhist religion and instituted a military and social organization copied from his vanquished neighbours, the Khmers.
The great civilization which evolved in the kingdom of Sukhothai was a tributary of numerous influences and ancient local traditions, but the rapid assimilation of all these elements forged, in record time, what is known as the Sukhothai style.