Rattanakosin Period
(1782-Present)
After Taksin's death, General Chakri became the first king of the Chakri dynasty, Rama I, ruling from 1782 to 1809. His first action as king was to transfer the royal capital across the river from Thonburi to Bangkok and build the Grand Palace. Rama II (1809-1824) continued the restoration begun by his predecessor.
King Nang Klao, Rama III (1824-1851) reopened relations with western nations and developed trade with China. King Mongkut, Rama IV, (1851-1868) of "The King and I" concluded treaties with European countries, avoided colonialization and established modern Thailand. He made many social and economic reforms during his reign.
King Chulalongkorn, Rama V (1869-1910) continued his father's tradition of reform, abolishing slavery and improving the publicThailand's History welfare and administrative system. Compulsory education and other educational reforms were introduced by King Vajiravudh, Rama VI (1910-1925). During the reign of King Prajadhipok, (1925-1935), Thailand changed from an absolute monarchy to a constitutional monarchy. The king abdicated in 1933 and was succeeded by his nephew, King Ananda Mahidol (1935-1946). The country's name was changed from Siam to Thailand with the advent of democratic government in 1939.