The codification of international law concerning the non-self-governing territories has proceeded through three distinct phases in this century. Article 22 of the Covenant of the League of Nations contained the notion that the well-being and the development of dependent peoples was the sacred trust of civilization. This concept legally applied only to the mandated territories, but in fact embodied the then current philosophy of the colonial powers. It implied that the territories should not be exploited for the benefit of the administering authorities; it was, however, a fairly static view, which did not even indicate to what end the “development” was to lead.