24th October has been celebrated as United Nations Day since 1948. UN Day marks the anniversary of the entry into force in 1945 of the UN Charter. The United Nations was founded in 1945 to support collective action to realize peace, development and human rights for all.
United Nations will commemorate the 75th anniversary of the United Nations in 2020 with inclusive global conversation on the role of global cooperation in building the future we want. The UN75 initiative seeks to spark dialogue and action on how we can build a better world despite the many challenges we face.
Source: The United Nations