Dhaka; formerly known as Dacca is the capital and largest city of Bangladesh. It is one of the world's largest cities, with a population of 18.89 million people in the Greater Dhaka Area. It is also the 4th most densely populated city in the world. Dhaka is the chief economic, political and cultural center of Bangladesh. It is one of the major cities of South Asia, the largest city in Eastern South Asia and among the Bay of Bengal countries; and one of the largest cities among OIC countries. As part of the Bengal plain, the city is bounded by the Buriganga River, Turag River, Dhaleshwari River and Shitalakshya River. The city is located in an eponymous district and division.
The area of Dhaka has been inhabited since the first millennium. The city rose to prominence in the 17th century as a provincial capital and commercial center of the Mughal Empire in South Asia. Dhaka was the capital of Mughal Bengal for 75 years. As the center of the muslin trade in Bengal, it was one of the most prosperous cities in the Indian subcontinent. The medieval city was named in honor of the Mughal emperor Jahangir and hosted the seat of the Mughal Subahdar, Naib Nazims and Dewans.