The social structure is made up of all those institutions and practices that form a society and organize social life while establishing limits on individual's behavior:
<em>This creates a set of arrangments and patterns of behavior, that shape each individual somehow to make him fit in the social system. </em>
Some of these social structural components can be: Institutions like Economy, Politics, and practices like roles, norms, values.
What made it self-sufficient was whether it had enough land and serfs which could produce enough food for people to survive on the amount of food that they would produce.
