Polygenic Scores Track Civilization Stage

When you measure polygenic scores for educational attainment in ancient skeletons and classify societies by archaeological 'civilization stage' (hunter‑gatherer → Neolithic → Bronze → Iron), the scores rise with social complexity even after accounting for calendar date. That suggests the genetic variants associated with later schooling and cognitive outcomes may have changed in frequency in tandem with organizational and cultural shifts, not purely with time. — If true, this reframes debates about historical selection and modern disparities: polygenic signals may reflect the co‑evolution of genes and social organization, making simplistic hereditarian readings politically and scientifically misleading.