Ram Khamhaeng

Ram Khamhaeng the Great พ่อขุนรามคำแหงมหาราช
Pho Khun Ram Khamhaeng maharat
Statue of King Ram Khamhaeng the Great, Sukhothai Historical Park, Sukhothai Province, Thailand
Pho Khun of Sukhothai
Reign	1279 - 1298
Predecessor	Ban Mueang
Successor	Loe Thai
Born	c. 1237/1247 Sukhothai Kingdom
Died	1298 (51/61 years old) Sukhothai Kingdom
Issue	Loe Thai Phaya Sai Songkhram May Hnin Thwe-Da
House	Phra Ruang Dynasty
Father	Si Inthrathit
Mother	Sueang
Religion	Theravada Buddhism

Ram Khamhaeng (Thai: รามคำแหง, pronounced [rāːm kʰām hɛ̌ːŋ] ^ⓘ) or Pho Khun Ram Khamhaeng Maharat (Thai: พ่อขุนรามคำแหงมหาราช, pronounced [pʰɔ̂ː kʰǔn raːm kʰam hɛ̌ːŋ má hǎː râːt] ^ⓘ), also spelled Ramkhamhaeng, was the third king of the Phra Ruang Dynasty, ruling the Sukhothai Kingdom (a historical kingdom of Thailand) from 1279 to 1298, during its most prosperous era.

He is credited for the creation of the Thai alphabet and the firm establishment of Theravada Buddhism as the state religion of the kingdom.^{[1]: 197 [2]: 25}