Dating thailand south
The Chinese called this region Xian, which the Portuguese converted into Siam." The signature of King Mongkut (r.1851–1868) reads SPPM (Somdet Phra Poramenthra Maha) Mongkut Rex Siamensium (Mongkut King of the Siamese), giving the name Siam official status until 24 June 1939 when it was changed to "Thailand".(198,120 sq mi) and over 68 million people, Thailand is the world's 50th-largest country by total area and the 21st-most-populous country.The capital and largest city is Bangkok, a special administrative area.Thailand 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.Its maritime boundaries include Vietnam in the Gulf of Thailand to the southeast, and Indonesia and India on the Andaman Sea to the southwest. Although nominally the country is a constitutional monarchy and parliamentary democracy, the most recent coup, in 2014, established a de facto military dictatorship under a junta.Documented European contact began in 1511 with a Portuguese diplomatic mission to Ayutthaya, now one of the great powers in the region.Ayutthaya reached its peak during cosmopolitan Narai's reign (1656–1688), gradually declining thereafter until being ultimately destroyed in the 1767 Burmese–Siamese War. 1767–1782) quickly reunified the fragmented territory and established the short-lived Thonburi Kingdom.
In the late 1950s, a military coup under Field Marshal Sarit Thanarat revived the monarchy's historically influential role in politics.Tai peoples migrated from southwestern China to mainland Southeast Asia from the 11th century; the oldest known mention of their presence in the region by the exonym Siamese dates to the 12th century.Various Indianised kingdoms such as the Mon kingdoms, Khmer Empire and Malay states ruled the region, competing with Thai states such as the Kingdoms of Ngoenyang, Sukhothai, Lan Na and Ayutthaya, which rivaled each other.The word Śyâma is possibly not its origin, but a learned and artificial distortion.Another theory is the name derives from Chinese: "Ayutthaya emerged as a dominant centre in the late fourteenth century.
Wyatt, a historian of Thailand, argued that their ancestors which at the present inhabit Laos, Thailand, Myanmar, India, and China came from the Điện Biên Phủ area between the 5th and the 8th century.