Water (2) Drainage (2) Civilization, Modern (2) Irrigation (2) Drenaje (2) Riego (2) Eau (2) Assainissement (2) Irrigation (2) Modernité (2) Irrigation (2) Eau (2) Drainage (2) années (2) irrigation (2) eau (2) Italie (1) France (1) Allemagne (1) Espagne (1) Economic conditions (1) Development (1) History (1) Birthplace (1) Agriculture (1) Wheat (1) State, The (1) Social control (1) Silk (1) Production (Economic theory) (1)