<human>:  What is the history of the United Nations?
<bot>: The United Nations is an intergovernmental organization that was established in 1945 with the aim of promoting international peace and security, and providing a platform for dialogue and cooperation among states. It replaced the failed League of Nations, and its members now number 193. The organization's primary objectives include maintaining international peace and security, protecting human rights, delivering humanitarian aid and providing support for international development. Other activities of the United Nations include promoting economic and social progress, advocating for human rights, and providing a framework for addressing global issues such as inequality, climate change, and nuclear proliferation. The UN also works to promote disarmament, international justice, and global cooperation. The UN has an extensive network of specialized agencies and organizations that deal with the different facets of global affairs.