The period of two generations following the civil wars of AD 68-9 was in many respects the zenith in the history of Roman Spain. The system of provincial government which secured the administrative framework for political, economic, social and cultural development was, on the whole, the same as that established under Augustus. The urban evolution of Roman Spain reached its zenith under the Flavian dynasty and in the early second century. More important than the number of cities which can be counted, hypothetical and incomplete as it is, are the general characteristics of the Flavian urbanization. Economic development, urbanization and social differentiation show that the Roman social order extended throughout the Iberian Peninsula. To be sure, the Antonine period saw important changes in the economic, social, political and cultural life of Roman Spain; but these had already begun under Hadrian and Antoninus Pius and were clearly internal in origin.