During the abortive Partition of Bengal in 1905, Dhaka was the short-lived capital of Eastern Bengal and Assam.
In 1906, the All India Muslim League was formed in Ahsan Manzil (located in Puran Dhaka), and Bengal was once again reunited in 1911.
At the time of the Liberation War, on March 2, 1971, the flag of Bangladesh was first raised in Dhaka University (which is currently one of the best universities in the country).
The Bengal Sultanate also allowed for Portuguese settlement in Chittagong in 1528. However, the Sultanate lost control in 1531 after Arakan declared independence and established the kingdom of Mrauk-U. This allowed the Portuguese to control Chittagong for over a century.