Ram Khamhaeng's Expansion of Sukhothai

Timeline

1. c. 1283–1288Sukhothai · ThailandAfter inheriting the Sukhothai throne, Ram Khamhaeng reformed domestic affairs and strengthened control over the core region, laying the political and military foundation for subsequent external expansion.
2. 1290–1295Chao Phraya River basin · Chao Phraya River basinSukhothai forces advanced north and south, compelling surrounding city-states and tribes to pay tribute, extending their reach to the northern Malay Peninsula and forming a network of regional hegemony.
3. 1292Sukhothai · ThailandThe Ram Khamhaeng Inscription (traditionally dated to about 1292) systematically proclaims the king's benevolent rule, Buddhist faith, and the extent of his realm, becoming a core document for studying the Sukhothai state form and the early history of writing in Southeast Asia.