United Nations Conference on International Organization
The San Francisco Conference, formally the United Nations Conference on International Organization (UNCIO), began as scheduled on 25 April 1945 with the goal of drafting a charter that would create a new international organization. The Big Four, which sponsored the event, invited all forty-six signatories to the Declaration by United Nations. Conference delegates invited four more nations: Belorussian Soviet Socialist Republic, the Ukrainian Soviet Socialist Republic, recently liberated Denmark and Argentina.