Answer: October 24
Notes: United Nations Day is celebrated on October 24, marking the establishment of the UN in 1945. The UN Charter was ratified by the majority of signatories, including the five permanent members of the Security Council. The UN promotes international peace and a fairer world through specialized organizations like the World Bank and WHO. The first UN Conference was held in San Francisco in 1945, leading to the ratification of the UN Charter. In 1971, the UN General Assembly recommended observing UN Day as a public holiday.
