Bangladesh is a South Asian nation that is officially known as the People's Republic of Bangladesh. It is the world's eighth-most populous nation, with a population of more than 163 million people living in an area of either 148,460 square kilometers (57,320 sq mi) or 147,570 square kilometers (56,980 sq mi), making it one of the world's most densely inhabited countries. Bangladesh has land borders with India to the west, north, and east, as well as Myanmar to the southeast, and has a coastline along the Bay of Bengal to the south. It is divided from Nepal and Bhutan by the Siliguri Corridor, and from China by 100 kilometers in the north of the Indian state of Sikkim. Dhaka, the capital and biggest city, serves as the country's economic, political, and cultural center. The second-biggest city is Chittagong, the major seaport. Bengali, one of the Indo-European language family's easternmost branches, is the national language.
Bangladesh is the sovereign portion of the historic and ethnolinguistic area of Bengal, which was partitioned during British India's Partition in 1947. The nation is dominated by Bengali Muslims. As the home of the states of Vanga, Pundra, Gangaridai, Gauda, Samatata, and Harikela, ancient Bengal was an important cultural hub in the Indian subcontinent. The final pre-Islamic rulers of Bengal were the Mauryan, Gupta, Pala, Sena, Chandra, and Deva kingdoms. Bakhtiar Khalji overran northern Bengal and attacked Tibet in 1204, beginning the Muslim invasion of Bengal. In the 14th century, three city-states arose as part of the Delhi Sultanate, with Sonargaon ruling over most of eastern Bengal. Sufi missionary leaders such as Sultan Balkhi, Shah Jalal, and Shah Makhdum Rupos contributed to the expansion of Muslim power. The Bengal Sultanate became an autonomous, unitary state. Eastern Bengal thrived during Mughal control as a melting pot of Muslims in the eastern subcontinent, attracting merchants from all over the globe. Under the Nawabs of Bengal in the 18th century, Mughal Bengal grew more forceful and autonomous. The defection of Mir Jafar in 1757 culminated in Nawab Siraj-ud-loss Daulah's to the British East India Company and ultimate British control over South Asia. The Bengal Presidency expanded to become British India's biggest administrative subdivision. The formation of Eastern Bengal and Assam in 1905 established a pattern for the establishment of Bangladesh. The first Prime Minister of Bengal endorsed the Lahore Resolution with the goal of establishing a state in eastern South Asia in 1940. Prior to Bengal's division, the Prime Minister suggested a Bengali independent state. Bangladesh's current geographical limit was set by a referendum and the proclamation of the Radcliffe Line.
East Bengal became the Dominion of Pakistan's most populated province in 1947. East Pakistan was renamed, and Dhaka became the country's legislative capital. The Bengali Language Movement in 1952, the East Bengali parliamentary election in 1954, the Pakistani coup d'état in 1958, the Six Point Movement in 1966, and the Pakistani general election in 1970 all contributed to the emergence of Bengali nationalism and pro-democracy activities in East Pakistan. The unwillingness of the Pakistani military junta to hand over power to the Awami League, led to the Bangladesh Liberation War in 1971, in which the Mukti Bahini, assisted by India, conducted a successful armed revolution. During the fight, there was a genocide in Bangladesh in 1971, as well as a slaughter of pro-independence Bengali civilians, including intellectuals. In 1972, Bangladesh became the first legally secular state in South Asia. In 1988, Islam was named the official religion. The Bangladesh Supreme Court upheld secular elements in the country's constitution in 2010.
Bangladesh is a Westminster-style unitary parliamentary constitutional republic. Bengalis account for 98 percent of Bangladesh's overall population, and the country's substantial Muslim population places it third among Muslim-majority countries. There are eight divisions, 64 districts, and 495 subdistricts in the nation. It has the third-largest military in South Asia, behind India and Pakistan, and has contributed significantly to UN peacekeeping missions. Bangladesh, a middle power in the Indo-Pacific, is a developing economy rated 41st in the world by nominal GDP and 29th by PPP. As a result of the Rohingya genocide, it has one of the world's biggest refugee populations. Bangladesh is confronted with several issues, including the negative consequences of climate change, poverty, illiteracy, corruption, authoritarianism, and human rights violations. However, the poverty rate has been cut in half since 2011, and the nation is predicted to become a middle-income country by the end of the decade. Bangladesh, once a historic hub of the muslin fabric trade, is today one of the world's major contemporary garment exporters.