 While there is clear evidence the Naqada II culture borrowed abundantly from Mesopotamia, the most commonly held view today is that the achievements of the First Dynasty were the result of a long period of cultural and political development.Such borrowings are much older than the Naqada II period, the Naqada II period had a large degree of continuity with the Naqada I period, and the changes which did happen during the Naqada periods happened over significant amounts of time.Modern Egyptology largely maintains the view that "state formation occurred as a mainly indigenous process", although significant differences in morphology indicated migration along the Nile Valley also took place.