King Shashanka ruled from 590 C.E - 625 C.E created the first separate political entity in Bengal called the Guada Kingdom. His capital was Karnasubarna in present day West Bengal. He is credited with the creation of the Bengali calendar because it was created during the beginning of his reign.
The Khadga dynasty was a Buddhist power during the Late Vedic which originated in the region of Bengal. The dynasty ruled the areas of Vanga and Samatata from the 7th to 8th Century.
Urban civilization emerges in Mahasthangarh
The Buddhist mosastic complex is built by the people of the Pala Dynasty.
Bengal gained their independence form Delhite and repelles two attempts at then trying to regain Bengal, but failed both times. In 1572 began their last years of freedom because the Mughal Empire inaded and gained control of the Bengal Empire
Delhite's failed attempted to invade and regain Bangladesh.
Delhite's second attempt to regain control if Bengal fails.