The word Śyâma is possibly not its origin, but a learned and artificial distortion The signature of King Mongkut (r.
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 first line of the national anthem is: prathet thai ruam lueat nuea chat chuea thai (Thai: There is evidence of human habitation in Thailand that has been dated at 40,000 years before the present, with stone artifacts dated to this period at Tham Lod Rockshelter in Mae Hong Son.
Its maritime boundaries include Vietnam in the Gulf of Thailand to the southeast, and Indonesia and India on the Andaman Sea to the southwest.
(198,000 sq mi), Thailand is the world's 51st-largest country.It is the 20th-most-populous country in the world, with around 66 million people. Thailand is a constitutional monarchy and was a parliamentary democracy until the coup in May 2014 by the National Council for Peace and Order. It is bordered to the north by Myanmar and Laos, to the east by Laos and Cambodia, to the south by the Gulf of Thailand and Malaysia, and to the west by the Andaman Sea and the southern extremity of Myanmar.It became a newly industrialised country and a major exporter in the 1990s.Manufacturing, agriculture, and tourism are leading sectors of the economy.
with the Sanskrit Śyāma (श्याम, meaning "dark" or "brown").
The names Shan and A-hom seem to be variants of the same word.