タイ文字
The pinnacle of political and administrative power, and the development of the Sukhothai Kingdom, was reached during the reign of King Ramkhamhaeng. This kingdom's territory was extended to cover the entire length of the Malaysian Peninsula. The initiation of the Thai alphabet and its inscription into stone. Besides, the people of Sukhothai made ceramics which were considered to be of high quality and known as "sangkalok". Sangkalok was an important component of exports.