Minor adjustment: family and caste (IN), vs family and clan(ME), vs hierarchy of

Minor adjustment: family and caste (IN), vs family and clan(ME), vs hierarchy of families (CN), vs family and commons (EU). There are only so many organizing possibilities and what’s interesting is that the surviving civilizations all chose a slightly different combination of strategy and organization. The open question I question so to speak, is whether competition between them had anything to do with it. Doesn’t appear so. Appears as different relations between the dominant warrior class and agrarian peasantry.