Southeast Asian countries

Southeast Asia, also spelled South East Asia and South-East Asia, and also known as Southeastern Asia, South-eastern Asia or SEA, is the geographical south-eastern region of Asia, consisting of the regions that are situated south of mainland China, east of the Indian subcontinent, and north-west of mainland Australia. Southeast Asia is bordered to the north by East Asia, to the west by South Asia and the Bay of Bengal, to the east by Oceania and the Pacific Ocean, and to the south by Australia and the Indian Ocean. Apart from the British Indian Ocean Territory and two out of 26 atolls of Maldives in South Asia, Maritime Southeast Asia is the only other subregion of Asia that lies partly within the Southern Hemisphere. Mainland Southeast Asia is completely in the Northern Hemisphere. East Timor and the southern portion of Indonesia are the only parts that are south of the Equator.

The region lies near the intersection of geological plates, with both heavy seismic and volcanic activities. The Sunda Plate is the main plate of the region, featuring almost all Southeast Asian countries except Myanmar, northern Thailand, northern Laos, northern Vietnam, and northern Luzon of the Philippines. The mountain ranges in Myanmar, Thailand, and Peninsular Malaysia are part of the Alpide belt, while the islands of the Philippines are part of the Pacific Ring of Fire. Both seismic belts meet in Indonesia, causing the region to have relatively high occurrences of earthquakes and volcanic eruptions, particularly in the Philippines and Indonesia.

It covers about , which is 10.5% of Asia or 3% of Earth's total land area. Its total population is more than million, about 8.5% of the world's population. It is the third most populous geographical region in Asia after South Asia and East Asia. The region is culturally and ethnically diverse, with hundreds of languages spoken by different ethnic groups. Ten countries in the region are members of the Association of Southeast Asian Nations (ASEAN), a regional organization established for economic, political, military, educational, and cultural integration amongst its members.

Southeast Asia was home to one of the few regions across Eurasia that did not get subsumed by the Mongol Empire. However, most modern Southeast Asian countries were also previously European colonial states, with the only exception being Siam (Thailand nowadays). European colonization stole natural resources and exploited labour from the lands they conquered, and proposed to enforce European religions on the region. Subsequent to this history, several Southeast Asian countries were also subsumed under the Imperial Japanese Empire, which perpetrated numerous war crimes, with estimates that between 1937 and 1945, the Japanese military murdered from nearly three to over ten million people, most likely six million Chinese, Indians, Koreans, Malaysians, Indonesians, Filipinos and Indochinese, among others.

Today, Southeast Asia is predominantly governed by independent states. Vietnam and Laos are some of the only countries in the world left that continue to follow the socialist or communist model.

Definitions

The region, together with part of South Asia, was well known by Europeans as the East Indies or simply the Indies until the 20th century. Chinese sources referred the region as ''Nanyang'' (""), which literally means the "Southern Ocean". The mainland section of Southeast Asia was referred to as Indochina by European geographers due to its location between China and the Indian subcontinent and its having cultural influences from both neighboring regions. In the 20th century, however, the term became more restricted to territories of the former French Indochina (Cambodia, Laos, and Vietnam). The maritime section of Southeast Asia is also known as the Malay Archipelago, a term derived from the European concept of a Malay race. Another term for Maritime Southeast Asia is ''Insulindia'' (Indian Islands), used to describe the region between Indochina and Australasia.

The term "Southeast Asia" was first used in 1839 by American pastor Howard Malcolm in his book ''Travels in South-Eastern Asia''. Malcolm only included the Mainland section and excluded the Maritime section in his definition of Southeast Asia. The term was officially used in the midst of World War II by the Allies, through the formation of South East Asia Command (SEAC) in 1943. SEAC popularised the use of the term "Southeast Asia," although what constituted Southeast Asia was not fixed; for example, SEAC excluded the Philippines and a large part of Indonesia while including Ceylon. However, by the late 1970s, a roughly standard usage of the term "Southeast Asia" and the territories it encompasses had emerged. Although from a cultural or linguistic perspective the definitions of "Southeast Asia" may vary, the most common definitions nowadays include the area represented by the countries (sovereign states and dependent territories) listed below.

Ten of the eleven states of Southeast Asia are members of the Association of Southeast Asian Nations (ASEAN), while East Timor is an observer state. Papua New Guinea has stated that it might join ASEAN, and is currently an observer. Sovereignty issues exist over some islands in the South China Sea.

Political divisions

Sovereign states

Geographical divisions

Southeast Asia is geographically divided into two subregions, namely Mainland Southeast Asia (or the Indochinese Peninsula) and Maritime Southeast Asia.

Mainland Southeast Asia includes:

* Cambodia
* Laos
* Myanmar (Burma)
* Peninsular Malaysia
* Thailand
* Vietnam

Maritime Southeast Asia includes:

* Brunei
* East Malaysia
* East Timor
* Indonesia
* Philippines
* Singapore

While Peninsular Malaysia is geographically situated in Mainland Southeast Asia, it shares many similar cultural and ecological affinities with surrounding islands, thus it is often grouped with them as part of Maritime Southeast Asia. Geographically, the Andaman and Nicobar Islands of India is also considered a part of Maritime Southeast Asia. Eastern Bangladesh and Northeast India have strong cultural ties with Mainland Southeast Asia and are sometimes considered transregional areas between South Asia and Southeast Asia. To the east, Hong Kong is sometimes regarded as part of Southeast Asia. Similarly, Christmas Island and the Cocos (Keeling) Islands have strong cultural ties with Maritime Southeast Asia and are sometimes considered transregional areas between Southeast Asia and Australia/Oceania. On some occasions, Sri Lanka has been considered a part of Southeast Asia because of its cultural and religious ties to Mainland Southeast Asia. The eastern half of the island of New Guinea, which is not a part of Indonesia, namely, Papua New Guinea, is sometimes included as a part of Maritime Southeast Asia, and so are Guam, the Northern Mariana Islands, and Palau, which were all parts of the Spanish East Indies with strong cultural and linguistic ties to the region, specifically, the Philippines.

East Timor and the eastern half of Indonesia (east of the Wallace Line in the region of Wallacea) are considered to be geographically associated with Oceania due to their distinctive faunal features. Geologically, the island of New Guinea and its surrounding islands are considered as parts of the Australian continent, connected via the Sahul Shelf. Both Christmas Island and the Cocos (Keeling) Islands are located on the Australian Plate, south of the Sunda Trench. Even though they are geographically closer to Maritime Southeast Asia than mainland Australia, these two Australian external territories are not geologically associated with Asia as none of them is actually on the Sunda Plate. The United Nations geoscheme has classified both island territories as parts of Oceania, under the Australia and New Zealand (Australasia) subregion.

Some definitions of Southeast Asia may include Taiwan. Taiwan has sometimes been included in Southeast Asia as well as East Asia but is not a member of ASEAN. Likewise, a similar argument could be applied to some southern parts of Mainland China, as well as Hong Kong and Macau, may also considered as part of Southeast Asia as well as East Asia but are not members of ASEAN.

History

Prehistory

The region was already inhabited by ''Homo erectus'' from approximately 1,500,000 years ago during the Middle Pleistocene age. Distinct ''Homo sapiens'' groups, ancestral to East-Eurasian (East Asian-related) populations, and South-Eurasian (Papuan-related) populations, reached the region by between 50,000BC to 70,000BC, with some arguing earlier. Rock art (parietal art) dating from 40,000 years ago (which is currently the world's oldest) has been discovered in the caves of Borneo. '' Homo floresiensis'' also lived in the area up until at least 50,000 years ago, after which they became extinct. During much of this time the present-day islands of western Indonesia were joined into a single landmass known as Sundaland due to lower sea levels.

Ancient remains of hunter-gatherers in Maritime Southeast Asia, such as one Holocene hunter-gatherer from South Sulawesi, had ancestry from both, the South-Eurasian lineage (represented by Papuans and Aboriginal Australians), and the East-Eurasian lineage (represented by East Asians). The hunter-gatherer individual had approximately ~50% "Basal-East Asian" ancestry, and was positioned in between modern East Asians and Papuans of Oceania. The authors concluded that East Asian-related ancestry expanded from Mainland Southeast Asia into Maritime Southeast Asia much earlier than previously suggested, as early as 25,000BC, long before the expansion of Austroasiatic and Austronesian groups.

Distinctive Basal-East Asian (East-Eurasian) ancestry was recently found to have originated in Mainland Southeast Asia at ~50,000BC, and expanded through multiple migration waves southwards and northwards respectively. Geneflow of East-Eurasian ancestry into Maritime Southeast Asia and Oceania could be estimated to ~25,000BC (possibly also earlier). The pre-Neolithic South-Eurasian populations of Maritime Southeast Asia were largely replaced by the expansion of various East-Eurasian populations, beginning about 50,000BC to 25,000BC years ago from Mainland Southeast Asia. The remainders, known as Negritos, form small minority groups in geographically isolated regions. Southeast Asia was dominated by East Asian-related ancestry already in 15,000BC, predating the expansion of Austroasiatic and Austronesian peoples.

In the late Neolithic, the Austronesian peoples, who form the majority of the modern population in Brunei, Indonesia, East Timor, Malaysia, and the Philippines, migrated to Southeast Asia from Taiwan in the first seaborne human migration known as the Austronesian Expansion. They arrived in the northern Philippines between 7,000 BC to 2,200 BC and rapidly spread further into the Northern Mariana Islands and Borneo by 1500 BC; Island Melanesia by 1300 BC; and to the rest of Indonesia, Malaysia, southern Vietnam, and Palau by 1000 BC. They often settled along coastal areas, replacing and assimilating the diverse preexisting peoples.

The Austronesian peoples of Southeast Asia have been seafarers for thousands of years. They spread eastwards to Micronesia and Polynesia, as well as westwards to Madagascar, becoming the ancestors of modern-day Malagasy people, Micronesians, Melanesians, and Polynesians. Passage through the Indian Ocean aided the colonisation of Madagascar, as well as commerce between Western Asia, eastern coast of India and Chinese southern coast. Gold from Sumatra is thought to have reached as far west as Rome. Pliny the Elder wrote in his Natural History about Chryse and Argyre, two legendary islands rich in gold and silver, located in the Indian Ocean. Their vessels, such as the vinta, were capable to sail across the ocean. Magellan's voyage records how much more maneuverable their vessels were, as compared to the European ships.Laurence Bergreen, Over the Edge of the World: Magellan's Terrifying Circumnavigation of the Globe, HarperCollins Publishers, 2003, hardcover 480 pages, A slave from the Sulu Sea was believed to have been used in Magellan's voyage as a translator.

Studies presented by the Human Genome Organisation (HUGO) through genetic studies of the various peoples of Asia show empirically that there was a single migration event from Africa, whereby the early people travelled along the south coast of Asia, first entered the Malay peninsula 50,000–90,000 years ago. The Orang Asli, in particular the Semang who show Negrito characteristics, are the direct descendants of these earliest settlers of Southeast Asia. These early people diversified and travelled slowly northwards to China, and the populations of Southeast Asia show greater genetic diversity than the younger population of China.

Solheim and others have shown evidence for a ''Nusantao'' maritime trading network ranging from Vietnam to the rest of the archipelago as early as 5000 BC to 1 AD. The Bronze Age Dong Son culture flourished in Northern Vietnam from about 1000 BC to 1 BC. Its influence spread to other parts Southeast Asia. The region entered the Iron Age era in 500 BC, when iron was forged also in northern Vietnam still under Dong Son, due to its frequent interactions with neighboring China.

Most Southeast Asian people were originally animist, engaged in ancestors, nature, and spirits worship. These belief systems were later supplanted by Hinduism and Buddhism after the region, especially coastal areas, came under contact with Indian subcontinent during the first century. Jan Gonda, The Indian Religions in Pre-Islamic Indonesia and their survival in Bali, in , pp. 1–54 Indian Brahmins and traders brought Hinduism to the region and made contacts with local courts. Local rulers converted to Hinduism or Buddhism and adopted Indian religious traditions to reinforce their legitimacy, elevate ritual status above their fellow chief counterparts and facilitate trade with South Asian states. They periodically invited Indian Brahmins into their realms and began a gradual process of Indianisation in the region. Shaivism was the dominant religious tradition of many southern Indian Hindu kingdoms during the first century. It then spread into Southeast Asia via Bay of Bengal, Indochina, then Malay Archipelago, leading to thousands of Shiva temples on the islands of Indonesia as well as Cambodia and Vietnam, co-evolving with Buddhism in the region. Theravada Buddhism entered the region during the third century, via maritime trade routes between the region and Sri Lanka. Buddhism later established a strong presence in Funan region in the fifth century. In present-day mainland Southeast Asia, Theravada is still the dominant branch of Buddhism, practiced by the Thai, Burmese, and Cambodian Buddhists. This branch was fused with the Hindu-influenced Khmer culture. Mahayana Buddhism established presence in Maritime Southeast Asia, brought by Chinese monks during their transit in the region en route to Nalanda

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