Archaeology

The eastern subcontinent's archaeological heritage includes Lumbini, the birthplace of the Buddha; the ancient universities and monasteries of Nalanda, Vikramshila, Somapura Mahavihara, Jaggadala, Odantapuri and Mainamati; the Ashokan pillars and the Mauryan Empire-era cities of Pataliputra, champa, Vaishali, Balirajpur, Rajgir, Sisupalgarh, Kalinga and Mahasthangarh; and the ruined fort cities of Wari-Bateshwar, Bhitagarh, and Chandraketugarh. The region has an important Buddhist Tourist Circuit.^[4] Eastern South Asia hosts a large number of medieval and early modern mosques, including Adina Mosque, the subcontinent's largest medieval mosque, and the Sixty Dome Mosque, and large caravansaries such as Bara Katra and Katra Masjid. It is home to several outstanding examples of medieval and early modern Hindu temple architecture, particularly the Newa architecture of Nepal and the architecture of Bengal.

A map showing the Chicken's Neck corridor between India, Bangladesh, Nepal and Bhutan

Old kingdoms

Eastern South Asia is a cradle of the subcontinental civilization. Historical states in the region include those recorded in Indian epics such as the Mahabharata, including ancient Nepal, Vanga, and Pundra; the Greek and Roman recorded kingdom of Gangaridai;^[5] major Hindu and Buddhist kingdoms including Kikata, Videha, Vṛji, Magadha, Nanda, Mauryan, Anga, Kalinga, Kamarupa, Samatata, Kanva, Gupta, Pala, Gauda, Sena, Khadga, Candra, Deva, Tripura , and Cooch Behar State. Major Islamic empires in the region included the Delhi and Bengal Sultanates, and the Suri and Mughal Empires (including the important province of Mughal Bengal). A confederation of Muslim and Hindu aristocrats called the Baro-Bhuyan existed in the late 16th and early 17th centuries.

Bengal Presidency

The Bengal Presidency was established in the 18th century by the British Empire, with its headquarters in Fort William, in coastal southwestern Bengal. The British made Bengal the center of their Indian empire, during which Bengal became synonymous with India.^[6] Until the mid-19th century, the Bengal Presidency's jurisdiction covered British-controlled territories in north India, northeast India, and Southeast Asia.

The Governor of Bengal was concurrently the Governor General of India for many years. Fort William's surroundings grew into the port city of Calcutta, which was the capital of India until 1911. After the British Indian Empire was established in 1858 following the Indian Rebellion of 1857, the Bengal Renaissance flourished in Calcutta and other Bengali urban centers. The Indian independence movement, including parts of the movement which created Pakistan, had its origins in the Bengal Presidency. The Parliament of Bengal, including the Bengal Legislative Council and the Bengal Legislative Assembly, was the oldest and largest in British India.

The Bengal Presidency had the highest gross domestic product in British India.^[7]

Partition of Bengal

Citing administrative improvement and affirmative action for Bengali Muslims and non-Bengali communities in colonial Assam, the British government enacted the first partition of Bengal in 1905. The new province of Eastern Bengal and Assam, with its own Legislative Council, saw more investments in education and infrastructure. The province was a center of the petroleum, tea, and jute industries. Its capital was Dacca, with a summer capital at Shillong. The summer capital enjoyed the highest per capita income in British India.^[7] The All India Muslim League was formed in Dacca to safeguard the interests of British Indian Muslims. But the first partition sparked strong protests from elites in Calcutta and sections of the landed gentry, particularly Bengali Hindus. The protests caused a pan-Indian political crisis. In 1912, East Bengal was reunited with West Bengal as Bengal Province while Assam was separated as Assam Province.

The first partition left a strong legacy. Decades later in the 1940s, when Hindu–Muslim relations deteriorated, the British government again partitioned Bengal into East Bengal and West Bengal as part of the Partition of British India. East Bengal was made part of the Muslim-majority Dominion of Pakistan and West Bengal a part of the Hindu-majority Dominion of India. East Bengal was later renamed East Pakistan in 1955.

In 1971, East Pakistan seceded in the Bangladesh Liberation War, which established the People's Republic of Bangladesh. The constitution of Bangladesh established a multiparty parliamentary democracy in 1972. The country endured several military coups in the late 1970s and 1980s. Islam is the state religion of Bangladesh. In the Indian state of West Bengal, the Communist Party of India governed for three decades.

Himalayan states

The Eastern Himalayas has been home to three independent kingdoms since the 17th century, including the Kingdom of Bhutan, the Kingdom of Sikkim, and the Kingdom of Nepal. The Himalayan kingdoms served as buffer states between Imperial China and India. In the 19th century, Nepal, Sikkim, and Bhutan became protectorates of British India. The Anglo-Nepal Treaty of 1923 recognized Nepal's sovereignty. The treaty was recorded in the League of Nations. Bhutan's relations with British India were managed under the Treaty of Punakha of 1910. Sikkim's relations with British India were managed under the Treaty of Titalia of 1817 and the Treaty of Tumlong of 1861.

After India became independent, it signed a treaty with Bhutan in 1949, and, in 1950, a treaty with Nepal and a treaty with Sikkim.^[8] The Annexation of Tibet by the People's Republic of China, particularly after the 1959 Tibetan uprising, caused an exodus of Tibetan refugees into Northern and Eastern South Asia, including into Nepal and Bhutan.

Refugees included the spiritual Tibetan head of state, the Dalai Lama, who established the Tibetan government in exile in India. The CIA Tibetan program in Nepal trained Tibetan refugees for guerrilla war against the PRC. Following the Tibetan crisis, India and the PRC engaged in a brief border war in 1962 over the disputed McMahon Line and Aksai Chin areas. In 1975, the Indian annexation of Sikkim was strongly opposed by China.^[9]

Nepal's first period of parliamentary democracy lasted from 1950 to 1960. The King of Nepal imposed the panchayat system in the 1960s and 1970s. A mass uprising pressured the King of Nepal to restore democracy in 1990. The Nepalese Civil War began in 1992.

Bhutan joined the United Nations in 1971. Bhutan was the first country to recognize the independence of Bangladesh.

Indian northeast

Colonial Assam was reorganized by the Indian government into the Seven Sister States of northeast India, including Arunachal Pradesh, Assam, Manipur, Meghalaya, Mizoram, Nagaland, and Tripura. Insurgency in Northeast India has been a security challenge for the Indian government. Since 1958, the Armed Forces Special Powers Act has been imposed in the region. The law has been described as perpetuating indirect military rule. There have been many allegations of human rights abuses in northeast India.

21st century

In 2003, China acknowledged Sikkim as a part of India while India recognized Tibet as part of China.^[10][11] The Dalai Lama has often asserted that Tibet should be given meaningful autonomy within China, not independence.^[12] In 2005, the King of Nepal imposed direct rule, which led to the monarchy's overthrow, the end of the civil war, and the creation of the Federal Democratic Republic of Nepal in 2008. Bhutan held its first general election in 2008.

In 2011, India granted duty-free access to most Bangladeshi products.^[13] In 2012, India affirmed in principle to allow Bangladesh, Bhutan, and Nepal to transit its territory for trade movement.^[14][15][16] In 2014, Bangladesh and India resolved their maritime boundary dispute at a UN tribunal.^[17]

In 2015, India and Bangladesh signed a land boundary agreement to resolve border disputes.^[18] In 2014 Bangladesh and Bhutan signed a trade agreement in which Bhutan gained duty-free access for 90 products in the Bangladeshi market. Bangladesh, India, Nepal, and Bhutan signed a regional motor vehicle agreement in 2015.^[19]

The four countries have agreed to develop hydropower in the Himalayas. Bhutan and India have developed two hydropower projects, as of 2017.

Nepal has been a key participant in the Chinese One Belt, One Road initiative, which seeks to revive the historical Silk Road between South Asia and Tibet.^[20][21]

The rapid development of the Chinese economy has caused increased trade and economic activity between China and Eastern South Asia. China is the largest trading partner of India, Bangladesh, and Nepal while Hong Kong is one of Bhutan's chief trading partners. The Indian economy has emerged as one of the world's fastest-growing economies although its eastern and northeastern states have had lower economic growth than northern, western, or southern India. According to the International Monetary Fund (IMF), the Bangladeshi economy was the world's second-fastest-growing major economy in 2016, but the country faces challenges of political instability and infrastructure shortages.

The 2017 China India border standoff developed on the Doklam plateau, located on the tri-nation border between Bhutan, Indian Sikkim, and Chinese Tibet.

Bangladesh

The river delta flowing into the Bay of Bengal in 2001

The longest beach in the world is located in Cox's Bazar

The geography of Bangladesh is varied and has an area characterised by three distinct features: a broad deltaic plain subject to frequent flooding, elevated forested plateaus, and a small hilly region crossed by swiftly flowing rivers. The country has an area of 147,610 square kilometres (56,990 sq mi) and extends 820 kilometres (510 mi) north to south and 600 kilometres (370 mi) east to west. Bangladesh is bordered on the west, north, and east by a 4,095-kilometre (2,545 mi) land frontier with India and, in the southeast, by a short land and water frontier (193 kilometres (120 mi) with Burma (Myanmar). On the south is a highly irregular deltaic coastline of about 580 kilometres (360 mi), containing many parallel rivers and streams flowing into the Bay of Bengal. The territorial waters of Bangladesh extend 12 nautical miles (22 km; 14 mi), and the exclusive economic zone of the country is 200 nautical miles (370 km; 230 mi). Bangladesh has a tropical monsoon climate.

The Sundarbans in Bangladesh, which is shared with India, is a UNESCO World Heritage Site. Cox's Bazar Beach is one of the world's longest beaches.

Bhutan

Snow in Thimphu. The picture was taken at the National Library of Bhutan

Bhutan is roughly the size of Switzerland. It is located on the southern slopes of the eastern Himalayas, landlocked between the Tibet Autonomous Region to the north and the Indian states of Sikkim, West Bengal, Assam, and Arunachal Pradesh to the west and south. The land consists mostly of steep and high mountains crisscrossed by a network of swift rivers, which form deep valleys before draining into the Indian plains. Elevation rises from 200 metres (660 ft) in the southern foothills to more than 7,000 metres (23,000 ft). The highest peak in Bhutan is Gangkhar Puensum at 7,570 metres (24,840 ft).

The climate in Bhutan varies with elevation, from subtropical in the south to temperate in central areas and alpine in the north, with year-round snow in the north. Western Bhutan has the heavier monsoon rains; southern Bhutan has hot humid summers and cool winters.

India

Northeast India

A rhinoceros in the Brahmaputra Valley, Assam

The landlocked region of Northeast India includes the states of Assam, Arunachal Pradesh, Mizoram, Manipur, Meghalaya, Nagaland, Sikkim, and Tripura. It has land borders with China, Myanmar, Bhutan, and Bangladesh. The region is usually categorised into the Eastern Himalaya and the Brahmaputra and the Barak valley plains. Northeast India has a predominantly humid sub-tropical climate with hot, humid summers, severe monsoons, and mild winters. The region is covered by the mighty Brahmaputra–Barak river systems and their tributaries. Geographically, apart from the Brahmaputra, Barak, and Imphal valleys and some flat lands in between the hills of Meghalaya and Tripura, the remaining two-thirds of the area is hilly terrain interspersed with valleys and plains; the altitude varies from almost sea level to over 7,000 metres (23,000 ft) above mean sea level. The region's high rainfall, averaging around 10,000 millimetres (390 in) and above, creates problems of ecosystem, high seismic activity, and floods. The states of Arunachal Pradesh and Sikkim have a montane climate with cold, snowy winters and mild summers.

Mount Everest seen from the window of a plane flying over the Himalayas

Nepal

Nepal is the world's 93rd largest country. Nepal is commonly divided into three physiographic areas: mountain, hill, and southern lowland plains (the Terai). These ecological belts run east–west and are vertically intersected by Nepal's major, north to south-flowing river system. The southern lowland plains bordering India are part of the northern rim of the Indo-Gangetic Plain. The Hill Region (Pahad) abuts the mountains and varies from 800 to 4,000 metres (2,600 to 13,100 ft) in altitude with progression from subtropical climates below 1,200 metres (3,900 ft) to alpine climates above 3,600 metres (11,800 ft). The Lower Himalayan Range reaching 1,500 to 3,000 metres (4,900 to 9,800 ft) is the southern limit of this region, with subtropical river valleys and "hills" alternating to the north of this range. The Mountain Region (Himal), situated in the Great Himalayan Range, makes up the northern part of Nepal. It contains the highest elevations in the world, including eight of the ten highest mountains.

The climate of Nepal includes subtropical, temperate, subalpine and alpine zones.

Bangladesh

Bangladesh is the world's eighth most populous country, with a population of more than 160 million. Bengalis are the largest ethnic group, with Bengali Muslim a majority, followed by Bengali Hindus, Bengali Buddhists, Bengali Christians and Chakma. The country has a significant Urdu-speaking minority, numerous minority indigenous ethnic groups and Anglo Indian. The Bengali language is the official language. Dhaka, Chittagong, Khulna, Sylhet, and Rajshahi are among the country's largest cities and towns. Bangladesh's life expectancy is ranked third in South Asia.

Bhutan

Bhutan has the second-smallest population in South Asia after the Maldives. Bhutan's three main ethnic groups are the Ngalop, Sharchop, and Lhotshampa. The state religion is Buddhism. The official language is Dzongkha. Bhutan has a significant Nepali-speaking minority. Thimphu and Phuntsholing are the largest cities.

India

With an estimated population of 226 million, East India has a multi-lingual and multi-ethnic Indo-Aryan population. Kolkata, Patna, Asansol, Durgapur, Bhubaneshwar, Siliguri and Darjeeling are among the area's largest cities. Northeast India has a population of 45 million. It has a multi-ethnic Tibeto-Burman and Austric population, except in Bengali-majority Tripura. Guwahati, Agartala, Shillong, Imphal, Aizawl, and Gangtok are the major towns and cities. Hindi and English are the federal official languages of India while most states also have their own official language.

Nepal

Nepal has a population of 25 million, which is the world's 41st largest. Nepal is a multiethnic Himalayan nation with Nepali as the official language.