What year was the United Nations founded?

The United Nations was founded in 1945, following the end of World War II. The organization's creation was a response to the devastation caused by the war and the desire to prevent such widespread conflict from occurring in the future. The UN was established on October 24, 1945, when the charter of the United Nations was ratified by the five permanent members of the Security Council—the United States, the United Kingdom, France, China, and the Soviet Union—as well as a majority of the other signatory nations. This marked the beginning of a new international organization aimed at facilitating cooperation among countries and promoting peace, security, and human rights worldwide. The significance of this date is commemorated annually as United Nations Day. The other choices—1940, 1950, and 1939—do not correspond with the founding date and reflect earlier or later instances in international relations and events that led to the formation of the UN.