Sukhothai Kingdom

• 1. Origins And Early Polity

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  In 1238, a coalition of Siamese forces led by Bang Klang Hao recaptured the city of Sukhothai and re-established it as an autonomous polity. This event marked a watershed moment in the history of the Siamese people. Before this date, the region had served as a trading hub within the Dvaravati Lavo since the seventh century. The polity fell under the suzerainty of the Qiān after the decline of Lavo. Their authority was extinguished following their defeat by Angkor in 946 CE. Subsequently, Sukhothai was incorporated into the domain of Haripuñjaya approximately a decade later. By the mid-12th century, control of the city was reasserted by Xiān monarchs who maintained brief subordination to Angkor between the late twelfth and early thirteenth centuries. Local textual traditions claim that both Sukhothai and Lavo were brought under the authority of Padumasūriyavaśa, whose reign is conventionally dated from 757 to 800 CE. This accords with Tatsuo Hoshino's interpretation of the Cefu Yuangui and the Book of Tang. These records indicate that the territory of Qiān bordered north to Duō Mó Cháng, located in the Yom and Nan river basins. The Sukhothai, Chaliang region was likely subordinate to Si Thep during the eighth through tenth centuries. Following the fall of Menam polities due to Tambralinga and Angkorian incursions, Sukhothai was taken over in 957 by Mon monarch Abhayakāminī. She fled from Haripuñjaya after its capital was captured by Umońkaselā, situated in what is now Fang. The chiefdom declared independence from Umońkaselā in 1017 during the reign of Arunaraja. Through control of trade routes linking Mon city-states in the west and Tai kingdoms in the north, Sukhothai emerged as a regional logistics hub. It developed into a city-state level by no later than 1127. This condition persisted until the formal establishment of the kingdom in 1238.

• 2. Ram Khamhaengs Golden Age

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  In 1270, Si Inthrathit died and was succeeded by his son Ban Mueang. At the end of Ban Mueang's reign, he was succeeded by his brother Ram Khamhaeng the Great. Both expanded Sukhothai beyond the borders established by their father. To the south, Ram Khamhaeng subjugated the mandala kingdoms of Suvarnabhumi and Tambralinga. Through the acquisition of Tambralinga, Ram Khamhaeng adopted Theravada Buddhism as the state religion. To the north, he placed Phrae and Muang Sua under tribute. To the west, he helped assist the Mon people under Wareru in their rebellion against Pagan control. Wareru would establish a kingdom at Martaban, the predecessor to Hanthawaddy. Martaban is traditionally considered a tributary state of Sukhothai. His success can be mainly attributed to his battlefield reputation. When he died in 1298, the far-flung bonds of vassalage quickly disintegrated. With regard to religion and culture, Ram Khamhaeng requested monks from Sri Thamnakorn to propagate Theravada Buddhism. In 1283, the Sukhothai script was likely invented by Ram Khamhaeng. The earliest evidence of this ancient Thai writing is seen in the Ram Khamhaeng Inscription. It was discovered by Mongkut nearly six centuries later. The script later evolved into the modern Thai script of today. During this time, the first relations with Yuan China were established. Sukhothai began sending trade missions to China. The well-known exported good was sangkhalok ware. This was the only period in Thai history that Siam produced Chinese-style ceramics.

• 3. Ceramics And Trade Networks

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  Sukhothai began sending trade missions to China during the reign of Ram Khamhaeng. The well-known exported good was sangkhalok ware. This ceramic style represents the only period in Thai history where Siam produced Chinese-style ceramics. These wares fell out of use by the fourteenth century. Archaeological finds at Wat Si Sawai and other sites confirm the production techniques used during this era. The kingdom developed diplomatic relations with Yuan China through these trade missions. Such exchanges facilitated cultural diffusion alongside commercial activity. The presence of Chinese-style kilns in the region suggests direct technological transfer from the north. Local artisans adapted foreign methods to create distinct regional variations. These artifacts have been recovered from excavations across the upper Chao Phraya basin. They provide tangible evidence of international connectivity during the thirteenth century. The decline of this industry coincided with political fragmentation following Ram Khamhaeng's death. By the 1300s, production ceased entirely as the kingdom lost its overseas markets. No further examples of sangkhalok ware appear after this point in historical records. The loss of this craft marked a turning point in economic policy for Sukhothai.

• 4. Decline And Ayutthaya Annexation

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  In 1349, armies from Ayutthaya invaded the kingdom and forced Sukhothai to become its tributary. The center of power shifted to Song Khwae, present-day Phitsanulok. In 1378, Lue Thai had to submit to this new Thai power as a vassal state. He was succeeded by Sai Lue Thai in 1399. In 1424, after the death of Sai Lue Thai, his sons Phaya Ram and Phaya Ban Mueang fought for the throne. Intharacha of Ayutthaya intervened and installed Ban Mueang as Borommapan. When Borommapan died in 1438, Borommarachathirat II of Ayutthaya installed his son Ramesuan as Upparat in Sukhothai. This position was similar to both that of a viceroy and an heir presumptive. Prince Ramesuan was presumably accompanied by Ayutthayan administrative staff and a military garrison. Thus, the end of Sukhothai as an independent kingdom occurred at this moment. Tributary states began to break away rapidly after the death of Ram Khamhaeng. Uttaradit and the Lao kingdoms liberated themselves from their overlords. Martaban broke away in 1319. Lan Na annexed Tak in 1321. Suphannaphum Kingdom and Nakhon Si Thammarat also broke free early in the reign of Loe Thai. The kingdom was quickly reduced to its former status as merely a local power.

• 5. Epigraphical Evidence And Inscriptions

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  The Silajaruek of Sukhothai are hundreds of stone inscriptions that form a historical record of the period. Among the most important inscriptions is the Ram Khamhaeng Inscription, also known as Inscription No. 1. Another key artifact is the Silajaruek Wat Srichum, which contains an account on the history of the region itself and of Sri Lanka. A third significant piece is the Silajaruek Wat Pamamuang, a politico-religious record of Loe Thai. Mongkut, later known as Rama IV, discovered Inscription No. 1 nearly six centuries after it was created. He found what he called a first stone inscription in Sukhothai. This document told of heroic kings such as Ram Khamhaeng and described the administrative system. It detailed other developments considered part of the prosperous time of the kingdom. The story of Sukhothai was incorporated into Thailand's national history in the late nineteenth century by Mongkut. He presented this work to the British diplomatic mission. These inscriptions remain crucial for reconstructing the political and cultural landscape of the era. They provide direct evidence from the period rather than relying solely on later chronicles.

• 6. Modern National Identity Construction

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  Sukhothai was said to be the first national capital, followed by Ayutthaya and Thonburi until Rattanakosin or today Bangkok. Sukhothai history became even more important after the Siamese Revolution of 1932. Research and writing on Sukhothai history were abundant during this period. Ideas derived from the inscriptions were studied and theorized by scholars like Chit Phumisak. One of the most well-known topics was Sukhothai's democracy rule. Stories of the close relationship between the king and his people were described as a father-son relationship. These narratives were considered the seed of ancient Thai democracy. Changes in government took place when later society embraced foreign traditions like those of Angkor. The story of Sukhothai became the model of freedom for modern nationalists. During military rule beginning in the 1950s, Sukhothai was increasingly featured in the Thai national history curriculum. Sukhothai's father-son model for Thai democracy contrasted with Angkorian tradition. It became one of freedom from the foreign ideology of Cambodian communism. Other aspects of Sukhothai were also explored under the new curriculum. Topics included commoner and slave status as well as economics. These subjects became the focus of ideological controversy during the Cold War and the communist insurgency in Thailand.