The United Nations was officially established on October 24, 1945, following the ratification of its Charter by China, France, the Soviet Union, the United Kingdom, the United States, and a majority of other signatories.
International
The United Nations: Origins and Establishment
The United Nations was officially established on October 24, 1945, following the ratification of its Charter by China, France, the Soviet Union, the United Kingdom, the United States, and a majority of other signatories.
Source: The Business Standard