temps (durée) (1) région (1) papier (1) cuivre (1) comparaison (1) Dynamics (1) Comparison (1) Variation (1) Time (1) Social change (1) Paper (1) Growth (1) Gifts (1) Evidence (1) Dynamics (1) Culture (1) Copper (1) Climatic changes (1) Change (1) Bronze age (1) Regions (1) Movements (1) Areas (1) Growth (1) meseta (1)