This article records tradition as it has been passed down and reported. Its sources are not yet part of the atlas's verified catalogue.
The United Nations did not begin as a blank page. Its framers had a recent, specific failure in front of them: the League of Nations, established in 1919 under the Covenant attached to the Treaty of Versailles, headquartered at the Palais des Nations in Geneva, and possessed of no armed force of its own. The League could deliberate, condemn and expel, but it could not compel, and through the 1930s it watched Japan take Manchuria, Italy take Ethiopia and Germany rearm without a mechanism that could stop any of it. By the time the League formally dissolved on 20 April 1946, transferring its assets to the organization that had already superseded it in practice, its failure had already supplied the working blueprint for what came next: build the enforcement teeth the League never had.
That is the quiet argument sitting inside the UN Charter's own structure. Franklin D. Roosevelt, who coined the term United Nations at the December 1941 Arcadia Conference and is counted among the organization's founders even though he died in April 1945 weeks before the San Francisco Conference concluded its work, wanted a body that combined the League's universal membership with a directorate of great powers able to act. The result was the Security Council: five permanent members, each carrying a veto over substantive resolutions, alongside ten elected members serving two year terms, empowered under Chapter V with the primary responsibility for international peace and security. Unlike a General Assembly resolution, a Security Council decision on peace and security binds every member state. That single design choice, a standing directorate with real teeth, is the UN's direct answer to the specific way its predecessor failed.
The Charter itself was signed in San Francisco on 26 June 1945 by representatives of 50 countries, and the organization came into legal existence on 24 October 1945 once China, France, the Soviet Union, the United Kingdom, the United States and a majority of the other signatories had ratified it. Whether the design succeeded where the League did not is a live question rather than a settled one: the veto that gives the Security Council teeth also lets any one of five states freeze it entirely, a trade-off the League never had to make because it never had teeth to freeze. The UN inherited its predecessor's universal ambition and built a sharper tool to pursue it; it did not inherit an answer to what happens when the powerful disagree.