Claim: United Nations Security Council Resolution 437 was adopted by the UN Security Council, one of the six principal organs of the United Nations (UN), on 10 October 1978.
Evidence: The United Nations System consists of the United Nations, and the six principal organs of the United Nations: the General Assembly, Security Council, Economic and Social Council (ECOSOC), Trusteeship Council, International Court of Justice (ICJ), and the UN Secretariat, along with various specialized agencies and affiliated organizations. United Nations Security Council Resolution 437, adopted on October 10, 1978, after recalling Resolution 253 (1968) which prevented Member States from allowing those connected to the regime in Southern Rhodesia to enter their territory, the Council noted with regret the decision by the United States to allow Ian Smith and other members of the "illegal regime" to enter the country. 
10 October 1978 Adopted The United Nations System consists of the United Nations, and the six principal organs of the United Nations: the General Assembly, Security Council, Economic and Social Council (ECOSOC), Trusteeship Council, International Court of Justice (ICJ), and the UN Secretariat, along with various specialized agencies and affiliated organizations.