Political modernization involves, let us assume, three things. First, it involves the rationalization of authority: the replacement of a large number of traditional, religious, familial, and ethnic political authorities by a single, secular, national political authority. This change implies that government is the product of man, not of nature or of God, and that a well-ordered society must have a determinate human source of final authority, obedience to whose positive law takes precedence over other obligations. Rationalization of authority means assertion of the external sovereignty of the nation-state against transnational influences and of the internal sovereignty of the national government against local and regional powers. It means national integration and the centralization or accumulation of power in recognized national law-making institutions. Secondly, political modernization involves the differentiation of new political functions and the development of specialized structures to perform those functions. Areas of peculiar competence—legal, military, administrative, scientific—become separated from the political realm, and autonomous, specialized, but subordinate, organs arise to discharge those tasks. Administrative hierarchies become more elaborate, more complex, more disciplined. Office and power are distributed more by achievement and less by ascription. Thirdly, political modernization involves increased participation in politics by social groups throughout society and the development of new political institutions—such as political parties and interest associations—to organize this participation. Broadened participation in politics may increase control of the people by the government, as in totalitarian states, or it may increase control of the government by the people, as in some democratic ones. But in all modern states the citizens become directly involved in and affected by governmental affairs. Rationalized authority, differentiated structure, and mass participation thus distinguish modern polities from antecedent polities.