when did siam change its name to thailand
Thailand The signature of King Mongkut (r. 1851â€“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.[18] Thailand was renamed to Siam from 1946 to 1948, after which it again reverted to Thailand.
Bangkok Bangkok (UK: /bæŋˈkɒk/,[6][7] US: /ˈbæŋkɒk/[7][8]) is the capital and most populous city of Thailand. It is known in Thai as Krung Thep Maha Nakhon (กรุงเทพมหานคร, pronounced [krūŋ tʰêːp mahǎː nákʰɔ̄ːn] ( listen)) or simply Krung Thep ( listen (help·info)). The city occupies 1,568.7 square kilometres (605.7 sq mi) in the Chao Phraya River delta in Central Thailand, and has a population of over 8 million, or 12.6 percent of the country's population. Over 14 million people (22.2 percent) lived within the surrounding Bangkok Metropolitan Region at the 2010 census,[5] making Bangkok an extreme primate city, significantly dwarfing Thailand's other urban centres in terms of importance.