mesopotamia social ancient structure classes picture king were four different class upper grade religion there slaves life farmers sutori nobility
social structure mesopotamia ancient egypt india china
hierarchy egyptian egypt pyramid mesopotamia classes mesopotamian hierarchystructure pharaoh stratification slaves pharaohs has egyptians
mesopotamia mesopotamica organizacion organización civilizaciones política estructura esquema sacerdotes nobleza militares comerciantes egipto caracteristicas grupos civilizacion economica evolucion fueron gobernantes