What are the oldest social norms that form the basis of modern legal requirements?

Social norms, rules of community existence existed long before their transformation into norms of law, but they become norms of law only when a state arose, which ensures their execution by state coercion. Uniformity of social norms of primitive society. In the pre-state period, in which there was no state and law, and people lived in communities, people’s behavior was regulated by such social norms as taboos, morality, rituals, myths, and customs. The social norms of the primitive (pre-state) society were homogeneous, undifferentiated.