Foundation
After the Burmese destroyed Ayutthaya in 1767, the general Taksin restored the kingdom from Thonburi. In 1782 he was deposed, and his leading general, Chao Phraya Chakri, became king as Rama I. He moved the capital across the Chao Phraya to Bangkok, building the Grand Palace and Wat Phra Kaew, and modelled the new city on Ayutthaya. Rama I and his successors fought off Burmese invasions, extended control over the Lao kingdoms, Cambodia and the northern Malay sultanates, and revived Buddhist scholarship, holding a council to revise the Pali canon in 1788. Rama I also commissioned the Ramakien.
Mongkut and the West
Mongkut, Rama IV, had spent twenty-seven years as a monk before coming to the throne in 1851. He founded a reformed monastic order, the Thammayut, and studied Western science and languages. Facing British power after the Anglo-Burmese wars and the Opium War in China, he concluded that Siam could not resist the Western powers by force. In 1855 he signed the Bowring Treaty with Britain, opening the country to trade with low duties and granting extraterritorial rights, and similar treaties followed with other powers.
Chulalongkorn
His son Chulalongkorn, Rama V, transformed the state during a reign of over forty years. He abolished slavery and corvée in stages, created ministries on European lines, centralised the administration of the provinces, built railways and schools, and sent princes to study in Europe. He also gave up territory to keep the rest: the lands east of the Mekong to France in 1893 after a French naval blockade, western Cambodian provinces in 1907, and the northern Malay states of Kedah, Kelantan, Terengganu and Perlis to Britain in 1909. Britain and France found it convenient to keep Siam as a buffer between their empires, and its independence was recognised.
Constitutional monarchy
In 1932 a group of officials and officers called the People's Party ended absolute monarchy in a bloodless coup. In 1939 the government of Phibunsongkhram renamed the country Thailand, Prathet Thai, "land of the free" or of the Tai people. Siam's survival as an independent state shaped its sense of national identity, centred on the monarchy, Buddhism and the Thai nation.
Further reading
- Coedes, George. The Indianized States of Southeast Asia. University of Hawaii Press, 1968
- Gombrich, Richard F. Theravada Buddhism: A Social History. Routledge, 2006
- Metcalf, Barbara D. A Concise History of Modern India. Cambridge University Press, 2012
See also
- Ayutthaya Kingdom — Ayutthaya was the Siamese kingdom ruled from the island city of that name on the Chao Phraya from 1351 until its destruction by a Burmese army in 1767, one of the great trading states and Theravada Buddhist kingdoms of mainland Southeast Asia.
- Wat Phra Kaew — Wat Phra Kaew is the royal temple within the Grand Palace in Bangkok, built by King Rama I from 1782 to house the Emerald Buddha, with galleries painted with the Ramakien, the Thai version of the Ramayana.
- Ramakien — The Ramakien is the Thai national version of the Rāmāyaṇa, whose fullest text was composed under Rama I in 1797, and the source of Thailand's khon masked dance-drama and much of its royal iconography.
- Lao kingdoms — The Lao kingdoms of Luang Prabang, Vientiane and Champasak were the three states into which Lan Xang divided between 1707 and 1713, which fell under Siamese overlordship from 1779 and passed to French rule after 1893.
- Konbaung Dynasty — The Konbaung dynasty was the last royal house of Burma, founded by Alaungpaya in 1752, which reunited the country, sacked Ayutthaya, repelled Chinese invasions and expanded into Arakan, Manipur and Assam, before losing its kingdom to the British in three wars between 1824 and 1885.
This entry was last revised on 12 November 2026.