Since the 2000s seen the country pitted in a political crisis between supporters and opponents of ex-Prime Minister Thaksin Shinawatra, with two coups, most recently in 2014.
Sarit's coup and premiership revived the monarchy's role in politics.
Another theory is the name derives from Chinese: "Ayutthaya emerged as a dominant centre in the late fourteenth century.
The Chinese called this region Xian, which the Portuguese converted into Siam." (Baker and Phongpaichit, A History of Thailand, 8) A further possibility is that Mon-speaking peoples migrating south called themselves 'syem' as do the autochthonous Mon-Khmer-speaking inhabitants of the Malay Peninsula. 1851–1868) reads SPPM (Somdet Phra Poramenthra Maha) Mongkut King of the Siamese, giving the name "Siam" official status until 24 June 1939 when it was changed to Thailand.
The country has always been called Mueang Thai by its citizens.
By outsiders prior to 1949, it was usually known by the exonym Siam (Thai: with the Sanskrit Śyāma (श्याम, meaning "dark" or "brown").