Constitutional monarchy (formerly Siam); the only Southeast Asian state never colonized, with continuous statehood from the 1782 Rattanakosin/Chakri founding.
The atlas holds 6 border frames for Thailand — the shape you scrub through changes in 1932 · 1941 · 1943 · 1945 · 1947 · 1958.
Standard modern survey (Baker & Pasuk) of Thai/Siamese history and the modern state.
The standard English-language survey of Thai history from the Tai origins through the Bangkok/Chakri era to the present.
Thailand's most celebrated historical novel, following one family through four reigns of the Chakri dynasty (1892-1946); overlaps substantially with Thailand's continuous monarchical span, including its transition from absolute to constitutional monarchy.