The present Thai classical dance (natasin) probably developed during the Ayutthaya period (1350–1767), although very little is known about the process. Its roots can be deciphered by using the early dance images of the region, already discussed above, as archaeological source material. The possible origins of Thai dance may be found in the Khmer tradition as depicted in the dance images in the Khmer reliefs of Angkor and the Khmer-related reliefs of the Phimai temple in eastern Thailand.