The United Nations observes milestone anniversaries of key events in its history.
2024
2023
2022
2022
2019
2019
2018
2018
70th anniversary of
2018
70th anniversary of the Convention on the
2018
2018
25th anniversary of the
2018
20th anniversary of the
2018
2015
2015
Thirty-fifth anniversary of the United Nations Institute for Disarmament Research ()
2014
2012
60th anniversary of the UN Disarmament Commission (11 January)
2012
40th anniversary of the Seabed Treaty (18 May)
2012
20th anniversary of the Declaration on the Rights of Minorities (18 December)
2011
(4 December)
2011
50th Anniversary of the death of Dag Hammarskj?ld (18 September)
2011
(26 April)
2010
(14 December)
2009
2008
2008
1998
50th Anniversary of the Universal Declaration of Human Rights