The present book is in continuation of our earlier work Early Anam Shaping of the Cultural Landscape authored jointly with Prof. Oinam Ranjit Singh, dealing with myriad changes in the landscape during the stretch from prehistoric era to the eve of Ahom rule. At the onset I would like to thank Prof. Oinam Ranjit Singh, Head of Department of Ancient History and Archaeology, Manipur University for collaborating and authoring jointly the previous part. Unlike the previous part the present subject matter conceived both latent and obvious shift pertaining to the historical period. Most of the sources referred are historical, accessible in libraries and web sources. As I look back, I will always feel indebted to my supervisor late Prof. Abdullah Ali Ashraf of Anthropology department. Gauhati University for mentoring and always showing confidence upon me. I pray his soul may rest in eternal peace.