From the League of Nations to UN:
Creation of UN System in 1945. The founders – victorious allies of WWII – meet in San Francisco to found a multipurpose IGO first envisioned by the League of Nations.
UN designed to be center of multilateral diplomacy in postwar word politics. Aiming at restoring peace and maintaining security, establish friendly relations among nations, address economic, social, cultural and humanitarian problems, and to promote respect for universal human rights.
Universal membership, currently up to 192 countries (all countries in the world, except Vatican and Kosovo)
Headquartered in New York.
Six official languages: Arabic, Chinese, English, French, Russian and Spanish.
UN system structured around five principle organs, together with its several agencies and autonomous organizations, comprise the UN family of IGOs.