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YearMaps
Industrial Era1932 CE – 2024 CEPeak: 522,065 km² (1944 CE)

Kingdom of Thailand: Map & History

Thailand, officially the Kingdom of Thailand, and formerly known as Siam, is a country located in Mainland Southeast Asia.

4.5
1932 CEDrag timeline:1944 CE2024 CE
1932 CE
1955 CE
1980 CE
2000 CE
2024 CE
Capital: BangkokCapital at 13.75°N, 100.52°EPeak Extent: 522,065 km²Vector Attribution: Cliopatria (CC BY 4.0)Wikidata: Q869 ↗
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Historiographical synthesis & structured realm registry

Wikipedia: Thailand
Thailand historical cartography
Country in Southeast Asia

Thailand, officially the Kingdom of Thailand, and formerly known as Siam, is a country located in Mainland Southeast Asia. It shares land borders with Myanmar to the west and northwest, Laos to the east and northeast, Cambodia to the southeast, and Malaysia to the south. Its maritime boundaries include the Gulf of Thailand and the Andaman Sea, and it shares maritime borders with Vietnam, Indonesia, and India. Thailand has a population of nearly 66 million people and covers an area of approximately 513,115 km2. The capital and largest city is Bangkok.

Capital / Seat
Bangkok
Common Languages
Isan, Northern Thai, Southern Thai, Karen, Pattani Malay, Bangkok Malay, Teochew, Hokkien
Imperial Currency
Thai baht (฿)
State Governance
Unitary parliamentary constitutional monarchy
Historical Religion
93.46% Buddhism, 5.37% Islam, 1.13% Christianity, 0.03% other
Peak Territory
513, 120
Content & infobox metadata adapted from Wikipedia (Thailand)

Modern Countries Once Part of Kingdom of Thailand

At its mapped extent, Kingdom of Thailand covered territory in 1 present-day country. The period shown is when the mapped borders include that country, and the note says how much of it.

Derived by testing mapped cities against this polity's dated territorial polygons, so the list is indicative and follows the borders in the source dataset.

Kingdom of Thailand in Depth

History

Continuous human habitation in present-day Thailand dates back at least 20,000 years. Agriculture emerged with rice cultivation around 2000 BCE, alongside participation in the Maritime Jade Road, a trading network connecting Southeast Asia from 2000 BCE to 1000 CE. The Ban Chiang site in northeast Thailand is the earliest known centre of copper and bronze production in Southeast Asia, dating between 2000 and 1000 BCE. Iron working appeared around 500 BCE.

The Indochinese Peninsula was heavily influenced by the culture and religions of India from the time of Funan, established in the 2nd century BCE. By the 6th century, early multiethnic kingdoms emerged, including the Mon principalities of Dvaravati and Hariphunchai.

Politics and government

Prior to 1932, Thai kings were feudal or absolute monarchs. During the Sukhothai Kingdom, the king was seen as a dharmaraja, or a 'king who rules in accordance with dharma'. The system of government was a network of tributaries ruled by local lords. Modern absolute monarchy and statehood were established by King Chulalongkorn when he transformed the decentralised protectorate system into a unitary state. On 24 June 1932, the Khana Ratsadon (People's Party) carried out a bloodless revolution that marked the beginning of a constitutional monarchy.

Thailand has had 20 constitutions and charters since 1932, including the current 2017 constitution.

Economy

The economy of Thailand is heavily export-dependent, with exports accounting for more than two-thirds of gross domestic product (GDP). Thailand exports over US$105 billion worth of goods and services annually. Major exports include cars, computers, electrical appliances, rice, textiles and footwear, fishery products, rubber, and jewellery.

Thailand is an emerging economy and is considered a newly industrialised country. Thailand had a 2026 GDP of US$1.964 trillion (on a purchasing power parity basis). It is the second-largest economy in Southeast Asia after Indonesia, and ranks midway in the region's wealth spread as the fourth-richest nation by GDP per capita.

Thailand functions as an anchor economy for the neighbouring developing economies of Laos, Myanmar, and Cambodia.

Culture

Thai culture and traditions incorporate influences from India, China, Cambodia, and the rest of Southeast Asia. Thailand's national religion, Theravada Buddhism, is central to modern Thai identity. Thai Buddhism has evolved over millennia from the Mon kingdom of Dvaravati, and today incorporates regional beliefs rooted in Hinduism, animism, and ancestor worship. The official calendar is based on the Eastern version of the Buddhist Era (BE).

The ancient Thai identity originates from Tai-speaking groups who migrated from southern China to Southeast Asia between the 6th and 11th centuries.

Sections adapted from Wikipedia: Thailand (CC BY-SA 4.0).

Kingdom of Thailand: Key Facts

Key facts about Kingdom of Thailand
CapitalBangkok
Official languageThai
ReligionsIslam, Christianity, Hinduism
Form of governmentconstitutional monarchy, parliamentary monarchy
Currencybaht
Founded28 December 1768

Facts from Wikidata Q869 (CC0).

Interactive map

Kingdom of Thailand on the World War II map →

See Kingdom of Thailand’s territory change day by day from 21 December 1941, with every battle it fought.

Kingdom of Thailand Map Over Time

Dated world maps on which Kingdom of Thailand appears, with the other states of the time.

Kingdom of Thailand Timeline

Key historical inflections from foundation to peak territorial expansion

1 Epochs
Territorial Apex1944 CE

Expansion to peak recorded area of 522,065 km² in 1944 CE.

Kingdom of Thailand: Frequently Asked Questions

When did the Kingdom of Thailand exist?

The Kingdom of Thailand is dated to 1932 CE – 2024 CE, in the Industrial era.

What was the capital of the Kingdom of Thailand?

The capital of the Kingdom of Thailand was Bangkok.

How large was the Kingdom of Thailand at its peak?

At its peak in 1944 the Kingdom of Thailand covered about 522,065 km².