The historical significance of the establishment of the United Nations lies in its role as a global platform aimed at promoting international cooperation and preventing future conflicts after World War II. Founded in 1945, the UN sought to foster peace, security, and human rights across nations. Its establishment marked a shift from a world divided by national interests to one prioritizing collective action and diplomacy. The UN has since played a pivotal role in addressing issues like humanitarian crises, development goals, and conflict resolution, shaping global governance and international relations substantially in the latter half of the 20th century.