<P> The United Nations ( UN ) is an intergovernmental organization tasked to promote international co-operation and to create and maintain international order . A replacement for the ineffective League of Nations , the organization was established on 24 October 1945 after World War II in order to prevent another such conflict . At its founding , the UN had 51 member states ; there are now 193 . The headquarters of the UN is in Manhattan , New York City , and is subject to extraterritoriality . Further main offices are situated in Geneva , Nairobi , and Vienna . The organization is financed by assessed and voluntary contributions from its member states . Its objectives include maintaining international peace and security , promoting human rights , fostering social and economic development , protecting the environment , and providing humanitarian aid in cases of famine , natural disaster , and armed conflict . The UN is the largest , most familiar , most internationally represented and most powerful intergovernmental organization in the world . </P>
<P> The United Nations ( UN ) is an intergovernmental organization tasked to promote international co-operation and to create and maintain international order . A replacement for the ineffective League of Nations , the organization was established on 24 October 1945 after World War II in order to prevent another such conflict . At its founding , the UN had 51 member states ; there are now 193 . The headquarters of the UN is in Manhattan , New York City , and is subject to extraterritoriality . Further main offices are situated in Geneva , Nairobi , and Vienna . The organization is financed by assessed and voluntary contributions from its member states . Its objectives include maintaining international peace and security , promoting human rights , fostering social and economic development , protecting the environment , and providing humanitarian aid in cases of famine , natural disaster , and armed conflict . The UN is the largest , most familiar , most internationally represented and most powerful intergovernmental organization in the world . </P>
when did the united nations come into existence
when did the united nations come into existence
24 October 1945
24 October 1945