What is one of the earliest forms of social organization among humans. How did social organization benefit humans?

The earliest form of social organisation is the family which is formed naturally. Social organisations arise from needs and situations of the members. These are the groups which are forced in order for the species to adjust to the environment.

Explanation:

Social organisations or formation of groups by humans result in a collective behavior. They reflect the interest of all the individuals present in the group and thus social norms are being formed.

Social organisations are of two types. one is the group which grow out of blood lineage and bond and kinship and the other is the voluntary association of members based on free will and common interest.