Магадхи
Rice-cultivating communities existed in Bengal since the second millennium BCE. The region was home to a large agriculturalist population, marginally influenced by Dharmic religions. Buddhism influenced the region in the first millennium. The Bengali language developed from Apabhramsa and Magadhi Prakrit between the 7th and 10th centuries. It once formed a single Indo-Aryan branch with Assamese and Oriya, before the languages became distinct.