What is a UN trust territory?

United States Central Intelligence Agency. Africa, Administrative Divisions. [Washington, D.C.: Central Intelligence Agency, 1958], Library of Congress, Washington, D.C. 

What is a UN trust territory?

Founded in 1945 to facilitate political, economic, social, and educational advancement for trust territories and their return to forms of self-government and independence, the UN Trusteeship Council supported the transition of trust territories and other African nations to become fully politically autonomous countries. In 1958, Sudan and Ghana had already become independent from Great Britain (in 1955 and 1957, respectively), with the trust territories of Somaliland and Togoland to follow in 1960, Tanganyika in 1961, Zanzibar and Kenya in 1963, Northern Rhodesia in 1964, and, much later, Southern Rhodesia, which was ruled by a white minority until 1980. 

---