Thailand

Kingdom of Thailand
  • ราชอาณาจักรไทย (Thai)
  • Ratcha-anachak Thai
Anthem: เพลงชาติไทย
Phleng Chat Thai
"Thai National Anthem"
Royal anthem: สรรเสริญพระบารมี
Sansoen Phra Barami
"Glorify His Prestige"
Location of Thailand (green)

– in Asia (grey)
– in ASEAN (grey)

Capital
and largest city
Bangkok[a]
13°45′N 100°29′E / 13.750°N 100.483°E / 13.750; 100.483
Official language
and national language
Thai[1]
Spoken languagesThai, Isan, Lanna, Dambro, Karen, Pattani Malay, Bangkok Malay, Teochew, Hokkien
Ethnic groups
Religion
(2023)[2]
Demonym(s)Thai
GovernmentUnitary parliamentary constitutional monarchy
• Monarch
Vajiralongkorn
Srettha Thavisin
LegislatureNational Assembly
Senate
House of Representatives
Formation
1238–1448
1351–1767
1767–1782
6 April 1782
24 June 1932
6 April 2017
Area
• Total
513,120 km2 (198,120 sq mi) (50th)
• Water (%)
0.4 (2,230 km2)
Population
• 2023 estimate
Neutral increase 69,794,997[3] (20th)
• 2010 census
64,785,909[4] (21st)
• Density
132.1/km2 (342.1/sq mi) (88th)
GDP (PPP)2024 estimate
• Total
Increase $1.665 trillion[5] (23rd)
• Per capita
Increase $23,707[5] (74th)
GDP (nominal)2024 estimate
• Total
Increase $543.248 billion[5] (30th)
• Per capita
Increase $7,731[5] (91st)
Gini (2021)Negative increase 35.1[6]
medium
HDI (2022)Increase 0.803[7]
very high (66th)
CurrencyThai baht (฿) (THB)
Time zoneUTC+7 (ICT)
Date formatdd/mm/yyyy (BE)
Driving sideleft
Calling code+66
ISO 3166 codeTH
Internet TLD

Thailand,[b] officially the Kingdom of Thailand and historically known as Siam (the official name until 1939),[c] is a country in Southeast Asia on the Indochinese Peninsula. With a population of almost 70 million, it spans 513,120 square kilometres (198,120 sq mi). Thailand is bordered to the northwest by Myanmar, to the northeast and east by Laos, to the southeast by Cambodia, to the south by the Gulf of Thailand and Malaysia, and to the southwest by the Andaman Sea; it also shares maritime borders with Vietnam to the southeast and Indonesia and India to the southwest. Bangkok is the state capital and largest city.

Tai peoples migrated from southwestern China to mainland Southeast Asia from the 6th to 11th centuries. Indianised kingdoms such as the Mon, Khmer Empire, and Malay states ruled the region, competing with Thai states such as the Kingdoms of Ngoenyang, Sukhothai, Lan Na, and Ayutthaya, which also rivalled each other. European contact began in 1511 with a Portuguese diplomatic mission to Ayutthaya, which became a regional power by the end of the 15th century. Ayutthaya reached its peak during the 18th century, until it was destroyed in the Burmese–Siamese War. King Taksin the Great quickly reunified the fragmented territory and established the short-lived Thonburi Kingdom (1767–1782), of which he was the only king. He was succeeded in 1782 by Buddha Yodfa Chulaloke (Rama I), the first monarch of the current Chakri dynasty. Throughout the era of Western imperialism in Asia, Siam remained the only state in the region to avoid colonization by foreign powers, although it was often forced to make territorial, trade, and legal concessions in unequal treaties.[8] The Siamese system of government was centralised and transformed into a modern unitary absolute monarchy during the reign of Chulalongkorn (Rama V). In World War I, Siam sided with the Allies, a political decision made in order to amend the unequal treaties. Following a bloodless revolution in 1932, it became a constitutional monarchy and changed its official name to Thailand, becoming an ally of Japan in World War II. In the late 1950s, a military coup under Field Marshal Sarit Thanarat revived the monarchy's historically influential role in politics. During the Cold War, Thailand became a major ally of the United States and played an anti-communist role in the region as a member of the failed SEATO, but since 1975 it has sought to improve relations with Communist China and Thailand's neighbours.

Apart from a brief period of parliamentary democracy in the mid-1970s and 1990s, Thailand has periodically alternated between democracy and military rule. Since the 2000s, the country has been caught in continual bitter political conflict between supporters and opponents of Thaksin Shinawatra, which resulted in two coups (in 2006 and 2014), along with the establishment of its current constitution, a nominally democratic government after the 2019 Thai general election, and large pro-democracy protests in 2020–2021, which included unprecedented demands to reform the monarchy. Since 2019, it has been nominally a parliamentary constitutional monarchy; in practice, however, structural advantages in the constitution have ensured the military's continued influence in politics.[9]

Thailand is a middle power in global affairs and a founding member of ASEAN, and it ranks very high in the Human Development Index. It has the second-largest economy in Southeast Asia and the 23rd-largest in the world by PPP, and it ranks 91st by nominal GDP per capita. Thailand is classified as a newly industrialised economy, with manufacturing, agriculture, and tourism as leading sectors.[10][11]


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  1. ^ "Thailand" Archived 10 June 2021 at the Wayback Machine, The World Factbook.
  2. ^ "Global Religion – Religious Beliefs Across the World" (PDF). Ipsos. May 2023. Archived (PDF) from the original on 12 May 2023. Retrieved 23 August 2023.
  3. ^ "Thailand". The World Factbook (2024 ed.). Central Intelligence Agency. Retrieved 24 September 2022. (Archived 2022 edition)
  4. ^ (in Thai) National Statistics Office, "100th anniversary of population censuses in Thailand: Population and housing census 2010: 11th census of Thailand" Archived 12 July 2012 at the Wayback Machine. popcensus.nso.go.th.
  5. ^ a b c d "World Economic Outlook Database, October 2023 Edition. (Thailand)". International Monetary Fund. 10 October 2023. Retrieved 11 October 2023.
  6. ^ "Gini Index". World Bank. Archived from the original on 27 July 2018. Retrieved 12 August 2021.
  7. ^ "Human Development Report 2023/2024" (PDF). United Nations Development Programme. 13 March 2024. Archived (PDF) from the original on 13 March 2024. Retrieved 13 March 2024.
  8. ^ Nuchkoom Smith, Nucharee; Smith, Robert Brian (1 October 2019). "Has Thailand learnt any Lessons from the Bowring Treaty and the Treaty of Amity?" (PDF). Athens Journal of Law. 5 (4): 405–418. doi:10.30958/ajl.5-4-3. S2CID 211453326. Archived (PDF) from the original on 11 May 2022. Retrieved 17 April 2022.
  9. ^ *Abuza, Zachary (27 September 2021). "Thailand's Constitutional Dictatorship Weathers the Storm". The Diplomat. Retrieved 14 March 2022.
  10. ^ Thailand and the World Bank Archived 16 December 2005 at the Wayback Machine, World Bank on Thailand country overview.
  11. ^ The Guardian, Country profile: Thailand Archived 23 May 2010 at the Wayback Machine, 25 April 2009.