8,000ish years ago, private property was born, and patrilineage, or woman living with their husbands families and property passing to sons, became the norm. This made land and heredity commodities, and destruction of whole male lineages for their land became common. We know this because of a dip in genetic diversity of Y chromosomes while women’s remained scattered but stable. Great mix of hard and social science!
— Apr 14, 2026 04:41AM
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