The United Nations officially formed in the year 1945. Established after World War II, the UN aims to promote international cooperation, peace, and security among member states. The organization emerged from the desire to prevent future conflicts and promote human rights, economic development, and social progress. The UN's founding charter was signed on June 26, 1945, in San Francisco, and the organization officially commenced operations on October 24, 1945. This date is now celebrated as United Nations Day, recognizing the UN's ongoing efforts to address global challenges and facilitate dialogue among nations.