The Indian subcontinent is a southern region and peninsula of Asia, mostly situated on the Indian Plate and projecting southwards into the Indian Ocean from the Himalayas. Geologically, the Indian subcontinent is related to the land mass that rifted from Gondwana and merged with the Eurasian plate nearly 55 million years ago.Geographically, it is the peninsular region in south-central Asia delineated by the Himalayas in the north, the Hindu Kush in the west, and the Arakanese in the east. Politically, the Indian subcontinent usually includes Bangladesh, Bhutan, India, Maldives, Nepal, Pakistan and Sri Lanka.
Sometimes, the term 'Indian subcontinent' is used interchangeably with South Asia, although that is typically defined to include Afghanistan as well. Which countries should be included in either of these remains the subject of debate.
According to Oxford English Dictionary, the term "subcontinent" signifies a "subdivision of a continent which has a distinct geographical, political, or cultural identity" and also a "large land mass somewhat smaller than a continent". It is first attested in 1845 to refer to the North and South Americas, before they were regarded as separate continents. Its use to refer to the Indian subcontinent is seen from the early twentieth century. It was especially convenient for referring to the region comprising both British India and the princely states under British Paramountcy.
The term Indian subcontinent also has a geological significance. Like the various continents, it was a part of the supercontinent of Gondwana. A series of tectonic splits caused formation of various basins, each drifting in various directions. The geological region called "Greater India" once included Madagascar, Seychelles, Antarctica and Austrolasia along with the Indian subcontinent basin. As a geological term, Indian subcontinent has meant that region formed from the collision of the Indian basin with Eurasia nearly 55 million years ago, towards the end of Paleocene.
The Indian subcontinent has been a term particularly common in the British Empire.
The geographical region has historically simply been known as "India" (in antiquity referring to the Indus Valley region, not the entire subcontinent). Other related terms are Greater India and South Asia.
And the terms "Indian subcontinent" and "South Asia" are sometimes used interchangeably. There is no globally accepted definition on which countries are a part of South Asia or the Indian subcontinent.
The less common term "South Asian subcontinent" has seen occasional use since the 1970s.
Orthographic projection of the Indian subcontinent
Geologically, the Indian subcontinent was first a part of so-called "Greater India", a region of Gondwana that drifted away from East Africa about 160 million years ago, around the Middle Jurassic period. The region experienced high volcanic activity and plate subdivisions, creating Madagascar, Seychelles, Antarctica, Austrolasia and the Indian subcontinent basin. The Indian subcontinent drifted northeastwards, colliding with the Eurasian plate nearly 55 million years ago, towards the end of Paleocene. This geological region largely includes Bangladesh, Bhutan, India, Maldives, Nepal, Pakistan and Sri Lanka. The zone where the Eurasian and Indian subcontinent plates meet remains one of the geologically active areas, prone to major earthquakes.
The English term "subcontinent" mainly continues to refer to the Indian subcontinent.Physiographically, it is a peninsular region in south-central Asia delineated by the Himalayas in the north, the Hindu Kush in the west, and the Arakanese in the east. It extends southward into the Indian Ocean with the Arabian Sea to the southwest and the Bay of Bengal to the southeast. Most of this region rests on the Indian Plate and is isolated from the rest of Asia by large mountain barriers.
Using the more expansive definition - counting India, Pakistan, Bangladesh, Sri Lanka, Nepal, Bhutan and Maldives as the constituent countries - the Indian subcontinent covers about 4.4 million km2 (1.7 million sq mi), which is 10% of the Asian continent or 3.3% of the world's land surface area. Overall, it accounts for about 45% of Asia's population (or over 25% of the world's population) and is home to a vast array of peoples.
Historical transmission routes of Buddhism from India to Central Asia, East Asia and Southeast Asia.
NASA images of the Indian subcontinent during day and night.
The Indian subcontinent is a natural physical landmass in South Asia, geologically the dry-land portion of the Indian Plate, which has been relatively isolated from the rest of Eurasia.
Given the difficulty of passage through the Himalayas, the sociocultural, religious and political interaction of the Indian subcontinent has largely been through the valleys of Afghanistan in its northwest, the valleys of Manipur in its east, and by maritime routes. More difficult but historically important interaction has also occurred through passages pioneered by the Tibetans. These routes and interactions have led to the spread of Buddhism out of the Indian subcontinent into other parts of Asia, while the Islamic expansion arrived into the Indian subcontinent through Afghanistan and to its coasts through the maritime routes.
Whether called the Indian subcontinent or South Asia, the definition of the geographical extent of this region varies. Geopolitically, it had formed the whole territory of Greater India.
In terms of modern geopolitical boundaries, the Indian subcontinent comprises the Republic of India,
Pakistan, Bangladesh, Nepal, Bhutan, besides, by convention, the island nation of Sri Lanka and other islands of the Indian Ocean, such as the Maldives.
The term "Indian continent" is first introduced in the early 20th century, when most of the territory was part of British India.
The Hindu Kush, centered on eastern Afghanistan, is the boundary connecting the Indian subcontinent with Central Asia to the northwest, and the Persian Plateau to the west. The socio-religious history of Afghanistan are related to the Turkish-influenced Central Asia and northwestern parts of the Indian subcontinent, now known as Pakistan. Others state Afghanistan being a part of Central Asia is not an accepted practice, and it is "clearly not part of the Indian subcontinent".
The precise definition of an "Indian subcontinent" vs. "South Asia" in geopolitical context is somewhat contested.
Past and future population
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Land and water area
This list includes dependent territories within their sovereign states (including uninhabited territories), but does not include claims on Antarctica. EEZ+TIA is exclusive economic zone (EEZ) plus total internal area (TIA) which includes land and internal waters.
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This greater India is well defined in terms of topography; it is the Indian sub-continent, hemmed in by the Himalayas on the north, the Hindu Khush in the west and the Arakanese in the east.
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- ^ "Asia" > Geologic history - Tectonic framework. Encyclopædia Britannica. Encyclopædia Britannica Online, 2009: "The paleotectonic evolution of Asia terminated some 50 million years ago as a result of the collision of the Indian subcontinent with Eurasia. Asia's subsequent neotectonic development has largely disrupted the continents pre-existing fabric. The neotectonic units of Asia are Stable Asia, the Arabian and Indian cratons, the Alpide plate boundary zone (along which the Arabian and Indian platforms have collided with the Eurasian continental plate), and the island arcs and marginal basins."
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- ^ "Asia" > Overview. Encyclopædia Britannica. Encyclopædia Britannica Online, 2009: "The Indian subcontinent is home to a vast diversity of peoples, most of whom speak languages from the Indo-Aryan subgroup of the Indo-European family."
- ^ "Indian Subcontinent", in Encyclopedia of Modern Asia. Macmillan Reference USA (Gale Group), 2006: "The total area can be estimated at 4.4 million square kilometres, or exactly 10 percent of the land surface of Asia... In 2000, the total population was about 22 percent of the world's population and 34 percent of the population of Asia."
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Haggett, Peter (2001). Encyclopedia of World Geography (Vol. 1). Marshall Cavendish. p. 2710. ISBN 0-7614-7289-4.
- ^ "the Indian Subcontinent occupies the major landmass of South Asia" John R. Lukacs, The People of South Asia: the biological anthropology of India, Pakistan, and Nepal, page 59, Plenum Press, 1984, ISBN 9780306414077.
"the seven countries of South Asia constitute geographically a compact region around the Indian Subcontinent".Tatu Vanhanen Prospects of Democracy: A Study of 172 Countries, page 144, Routledge, 1997, ISBN 9780415144063
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Robert Wuthnow (2013). The Encyclopedia of Politics and Religion. Routledge. pp. 11-. ISBN 978-1-136-28493-9.
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Ahmed, Mukhtar (2014), Ancient Pakistan - An Archaeological History: Volume II: A Prelude to Civilization, Foursome, p. 14, ISBN 978-1-4959-4130-6