papier (1) Afrique du Nord (1) information (1) datation (1) grotte (1) Afrique (1) Dating (1) Shell beads (1) Social sciences (1) Signs and symbols (1) Signs and signboards (1) Paper (1) Mesolithic period (1) Material culture (1) Human beings (1) Identity (Philosophical concept) (1) Gifts (1) Evidence (1) Continuity (1) Cognition (1) Beads (1) Africa, North (1) Utilization (1) Material culture (1) Behavior (1) Relations (1) grotte (1)