What is Alterations in various aspects of society over time called?

The answer is Social change.

Explanation:

Social change is an important modification in the structure of a society. Social change can be applied to numerous aspects of a society such as economic, political, cultural, ethical and identity issues of a community. These changes may occur in the values, traditions, norms or material manifestations of the community. The changes in the forms of government, the variation in the systems of customs, the evolution of the economic programs, the alteration of the values of behavior are clear patterns of social change.

its a social change.