Human societies did not always look like the sprawling nations we see today. They began as small kin groups—clans—that organized social life around descent and marriage.
Ritual age-sets bonded young men into political and military units, enabling societies to mobilize for defense and warfare. These cohorts transcended kinship, fostering broader social cohesion.
Intergroup conflict was a powerful evolutionary force. Groups that could organize effectively and centralize authority had advantages in warfare and resource competition. This process led to the emergence of chiefdoms and early states with hierarchical leadership and complex institutions.
For example, a clan expanding under a strong leader could consolidate territory, enforce laws, and regulate marriages, transforming into a political entity controlling resources and people.
This history reveals that social complexity arises not only from cooperation but also from conflict and competition, shaping human psychology and institutions.
Next, we will see how religion and ritual became essential to maintaining order in expanding societies.
Sources: [[0]](#__0), [[2]](#__2), [[3]](#__3)
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