Ramkhamhaeng the Great was a significant king of the Sukhothai Kingdom in Thailand, reigning during the 13th century. He is best known for his contributions to the development of the Thai script and for promoting Buddhism as the state religion. His reign marked a period of cultural and economic prosperity. Under Ramkhamhaeng's leadership, the kingdom expanded its territory and influence. He is also credited with establishing a legal code and fostering trade, which helped improve the lives of his subjects. His legacy continues to be celebrated in Thailand as a symbol of national identity and unity.