March 28, 1946: Acheson-Lilienthal report. Urges that mines and “dangerous” atomic-energy facilities be put under _international ownership_ and _management_ of Atomic Development Authority. Additional safeguards in the form of _inspection_. Nations to operate “safe” plants under ADA license. Plants to be distributed among nations in keeping with _strategic balance_. Control plan to be implemented by stages. June 14, 1946: Baruch proposals to United Nations. Closely follow Acheson-Lilienthal recommendations. Ask “condign punishment,” for violations, and request agreement that UN Charter _veto_ clause not apply to sanctions for stipulated violations of atomic-energy treaty. June 19, 1946: Soviet Union counterproposals. Demand prohibition of atomic weapons and destruction of existing stockpiles _before_ international control plan is negotiated. Soviet proposals provide no safeguards against evasion. December 31, 1946: First Report of UNAEC. Incorporates essential features of Baruch proposals into statement of principles for plan for international control of atomic energy. Adopted 10 to 0, with U.S.S.R. and Poland abstaining. June 11, 1947: U.S.S.R. control proposals. Soviets assent to _periodic inspection_, but this would apply only to _declared_ plants. August 11, 1947: Soviets consent in principle to concept of _quotas_. September 11, 1947: Second Report of UNAEC. Outlines powers, functions, and limitations thereon of any international agency in implementing effective control plan. May 17, 1948: Third Report of UNAEC. Reports impasse because Soviets refuse to accept majority plan and persist in refusing to put forward effective proposals of their own. Concludes that further work in UNAEC is fruitless until Soviet cooperation in broader fields of policy is secured. Recommends that Commission’s work be suspended until sponsoring powers find that basis for agreement exists. September 25, 1948: Soviets modify position by asking that conventions for prohibition of atomic weapons and for international control go into effect simultaneously. November 4, 1948: By vote of 40 to 6, UN General Assembly endorses majority control plan. Calls upon UNAEC to continue work and requests that sponsoring powers consult to explore possible basis of agreement. August 9, 1949: First meeting of sponsoring powers of UNAEC. September 23, 1949: President Truman’s announcement of Soviet atomic explosion. October 25, 1949: Canada, China, France, United Kingdom, United States statement reveals Soviet attitude still prevents agreement. November 23, 1949: General Assembly resolution calls upon sponsoring powers to continue consultations. November 23, 1949: Soviets reverse position on quotas, abandoning previous assent in principle.