Siam

Kingdom of Thailand ราชอาณาจักรไทย Ratcha-anachak Thai
Flag Emblem
Anthem: Phleng Chat Thai (English: "Thai National Anthem") Royal anthem: Sansoen Phra Barami (English: "Glorify His prestige")
Location of  Thailand  (green) in ASEAN  (dark grey)  –  [Legend]
Capital and largest city	Bangkok 13°45′N 100°29′E / 13.750°N 100.483°E / 13.750; 100.483
Official languages	Thai
Spoken languages	Isan Kam Mueang Pak Tai
Ethnic groups (2009; 2011)	34.1% Central Thai, 24.9% Thai Lao, 9.9% Khon Muang or 'Northern Thai', and 7.5% Southern Thai 14% Thai Chinese 12% Others (incl. Malay, Mon, Khmer, "Hill tribes")
Demonym	Thai Siamese (archaic)
Government	Unitary parliamentary constitutional monarchy (de jure) Military junta (de facto)
• Monarch	Maha Vajiralongkorn
• Prime Minister	Prayut Chan-o-cha
Legislature	National Legislative Assembly
Formation
• Sukhothai Kingdom	1238–1448
• Ayutthaya Kingdom	1351–1767
• Thonburi Kingdom	1768–1782
• Rattanakosin Kingdom	6 April 1782
• Constitutional monarchy	24 June 1932
• Current constitution	22 May 2014
Area
• Total	513,120 km2 (198,120 sq mi) (51st)
• Water (%)	0.4 (2,230 km2)
Population
• 2015 estimate	67,959,000 (20th)
• 2010 census	64,785,909
• Density	132.1/km2 (342.1/sq mi) (88th)
GDP (PPP)	2016 estimate
• Total	US$1.152 trillion
• Per capita	US$16,706
GDP (nominal)	2016 estimate
• Total	US$409.724 billion
• Per capita	US$5,938
Gini (2010)	39.4 medium
HDI (2014)	0.726 high · 93rd
Currency	Baht (฿) (THB)
Time zone	ICT (UTC+7)
Drives on the	left
Calling code	+66
ISO 3166 code	TH
Internet TLD	.th .ไทย

Coordinates: 15°24′N 101°18′E / 15.4°N 101.3°E / 15.4; 101.3

in ASEAN  (dark grey)  –  [Legend]

Thailand (/ˈtaɪlænd/ TY-land or /ˈtaɪlənd/ TY-lənd;Thai: , rtgs: Prathet Thai, pronounced [pra.tʰêːt tʰaj]), officially the Kingdom of Thailand (Thai: , rtgs: Ratcha-anachak Thai  [râːt.t͡ɕʰa.ʔaː.naː.t͡ɕàk tʰaj]), formerly known as Siam (Thai: , rtgs: Sayam  [sa.jǎːm]), is a country at the centre of the Indochinese peninsula in Southeast Asia. With a total area of approximately 513,000 km² (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. The capital and largest city is Bangkok.