Sonargaon is one of the oldest capitals of Bengal. It became the seat of the Hindu Deva Dynasty in the mid-13th century. But this was short-lived, as Hindu rule ended in the early 14th century. Sonargaon was under the independent rule for some years, before becoming a subsidiary capital of the Sultanate of Bengal, then the Sultanate of Delhi. The city ended up in the hands of the Mughal Empire after their rise to power across the Subcontinent.
The British eventually took control of the region, and although it lost much of its significance, the city was further developed with a new neighborhood settled by wealthy Hindu merchants named Panam City.
Much of the old Hindu and Mughal buildings are gone or ruined, but some have survived. Many of the British-era structures are still present today.