Thailand History Timeline

c252 BCBuddhism first brought to Suvannabhumi ("Golden Land" - probably centred around today's Nakhon Pathom area) by Indian King Asoka's missionaries
c550 Dvaravati civilization of Buddhist ethnic Mon people in central and northeastern Thailand until the 9th century
c1000Ethnic Tai peoples moving down from southern China; Angkorean empire in control in 11th and 12th centuries, bringing Brahmanism, Mahayana Buddhism, Sanskrit words and the Khmer-based royal vocabulary still in use today
1238 Ethnic Tai Sukhothai kingdom established by King Sri Indraditya
1259King Mangrai first ruler of ethnic Tai kingdom of Lanna
1279 Accession of King Ramkhamhaeng of Sukhothai
1292Ramkhamhaeng's inscription describing his kingdom
1345Compilation of the influential Buddhist text Triphum Phra Ruang (Three Worlds Cosmography) by King Lithai of Sukhothai
1351 Legendary foundation of Ayutthaya
1569 First fall of Ayutthaya to the Burmese
1656 Accession of King Narai
1688 Palace coup against King Narai over the influence of Greek adventurer Constantine Phaulkon and other foreigners; Phaulkon executed
1767 Second fall of Ayutthaya
1768 King Taksin defeats the Burmese and establishes new Siamese capital at Thonburi
1782 New capital established at Bangkok, accession of King Yotfa, Rama I
1822 First trade treaty with Britain
1851 Accession of King Mongkut, Rama IV
1855 Bowring Treaty
1863 French protectorate of Cambodia
1868 Accession of King Chulalongkorn, Rama V
1872 Chulalongkorn's visit to India
1874 Front Palace Incident; Anglo-Siam Treaty over Chiang Mai; edict abolishing slavery
1890 Establishment of Privy Purse Bureau
1892 Formation of ministerial council
1893 French gunboats threaten Bangkok (Paknam Incident); foundation of Ministry of Interior
1897 Chulalongkorn's first visit to Europe
1901 Isan Holy Men's rebellion
1902 Phrae revolt; southern states revolt; Sangha Act
1904Siam Society founded
1905 Conscription edict
1908 Sun Yat Sen visit to Bangkok
1909 Anglo-Siamese Treaty finalizes Siam's boundaries
1910 Accession of King Vajiravudh, Rama VI; Chinese strike in Bangkok
1912 Plot uncovered in military
1913 Nationality Act; Surname Act
1916 Foundation of Chulalongkorn University
1917 Siamese forces to fight on Allied side in World War 1 in Europe
1925 Accession of King Prajadhipok, Rama VII
1927 People's Party founded in Paris
1928 Boycott of Japanese goods
1930 Ho Chi Minh forms Communist Party of Siam
1932 Revolution results in change from absolute to constitutional monarchy
1933 Boworadet Revolt
1934 Foundation of Thammasat University; Phibun Songkram becomes minister of defence and army chief
1935 Abdication of King Prajadhipok
1937 Second boycott of Japanese imports
1938 Phibun becomes prime minister
1939 Siam renamed as Thailand
1941 Japanese army enters Thailand; Thailand declares war on Allies; battle with French in which 59 Thai troops killed; Victory Monument erected
1942 Phibun's Sangha Act; Communist Party of Thailand refounded
1944 Seri Thai resistance network established; Phibun ousted as prime minister
1945 Seni Pramoj returns from the US to conduct peace negotiations
1946 Pridi Banomyong's constitution; death of King Ananda Mahidol, Rama VIII; accession of King Bhumibol Adulyadej, Rama IX
King Ramkhamhaeng stele

Stele of King Ramkhamhaeng at Sukhothai.