A study published in the European Journal of Archaeology proposes that slate plaques from the Late Neolithic and Copper Age Iberian Peninsula (3200–2200 BC) served as non-verbal genealogical records. The plaques, found in tombs across Portugal and Spain, were engraved with intricate geometric patterns and may have indicated clan affiliations and ancestral lineage. R…A study published in the European Journal of Archaeology proposes that slate plaques from the Late Neolithic and Copper Age Iberian Peninsula (3200–2200 BC) served as non-verbal genealogical records. The plaques, found in tombs across Portugal and Spain, were engraved with intricate geometric patterns and may have indicated clan affiliations and ancestral lineage. R…