Enlargement of the United Nations


As of , there are member states of the United Nations , each of which is a member of the United Nations General Assembly.
The following is a list of United Nations member states arranged in chronological order according to their dates of admission, including former members. Members denoted with "→" changed their names, had their memberships in the UN continued by a successor state, merged with other members, or were dissolved.

Timeline of Enlargement of the United Nations

1940s

1945 (original members)

The UN officially came into existence on 24 October 1945, after ratification of the United Nations Charter by the five permanent members of the United Nations Security Council and a majority of the other signatories. A total of 51 original members joined that year; 50 of them signed the Charter at the United Nations Conference on International Organization in San Francisco on 26 June 1945, while Poland, which was not represented at the conference, signed it on 15 October 1945.
24 October 1945
25 October 1945
  • → /
30 October 1945
  • → →
31 October 1945
1 November 1945
2 November 1945
5 November 1945
7 November 1945
  • /
  • → /
9 November 1945
  • Canada, Dominion of → /
13 November 1945
14 November 1945
15 November 1945
  • → /
21 November 1945
27 November 1945
10 December 1945
17 December 1945
18 December 1945
21 December 1945
27 December 1945'''
19 November 1946
16 December 1946
30 September 1947
19 April 1948
11 May 1949

1950

28 September 1950
14 December 1955
12 November 1956
18 December 1956
8 March 1957
17 September 1957
22 February 1958
12 December 1958

1960

20 September 1960
28 September 1960
7 October 1960
27 September 1961
27 October 1961
14 December 1961
18 September 1962
8 October 1962
25 October 1962
14 May 1963
16 December 1963
1 December 1964
20 January 1965
21 September 1965
20 September 1966
28 September 1966
17 October 1966
9 December 1966
14 December 1967
24 April 1968
24 September 1968
12 November 1968

1970

13 October 1970
21 September 1971
7 October 1971
25 October 1971
9 December 1971
18 September 1973
17 September 1974
16 September 1975
10 October 1975
12 November 1975
4 December 1975
21 September 1976
1 December 1976
15 December 1976
20 September 1977
19 September 1978
18 December 1978
18 September 1979

1980

25 August 1980
16 September 1980
15 September 1981
25 September 1981
11 November 1981
23 September 1983
21 September 1984

1990

23 April 1990
18 September 1990
24 August 1991
'''17 September 1991
2 March 1992
22 May 1992
31 July 1992
19 January 1993
8 April 1993
28 May 1993
  • /
28 July 1993'''
15 December 1994
14 September 1999

2000

5 September 2000
1 November 2000
10 September 2002
27 September 2002
28 June 2006

2011

14 July 2011
Below is a summary of the growth in UN membership.
Year# of admissions# of members
19455151
1946455
1947257
1948158
1949159
1950160
1951–1954060
19551676
1956480
1957282
1958182
1959082
19601799
19614104
19626110
19633113
19643115
19653117
19664122
19671123
19683126
19690126
19701127
19715132
19720132
19733135
19743138
19756144
19763147
19772149
19782151
19791152
19802154
19813157
19820157
19831158
19841159
1985–19890159
19902159
19917166
199213179
19936184
19941185
1995–19980185
19993188
20002189
20010189
20022191
2003–20050191
20061192
2007–20100192
20111193
2012–present0193