The year that marked the establishment of the United Nations (UN) was 1945. Founded in the aftermath of World War II, the UN aimed to foster international cooperation, peace, and security to prevent future conflicts. The organization was officially established on October 24, 1945, when the Charter of the United Nations was ratified by the five permanent members of the Security Council and a majority of other signatories. Since its inception, the UN has played a crucial role in mediating international disputes, addressing humanitarian issues, and promoting global development, making it a central institution in international relations.