Political Geography of the Modern Era

(1900-Present)

Timeline

1900
2000

AD

1900 - Present

AE

1900 - 1 December 1971
2 December 1971 - Present

AF

1900 - 8 June 1926
9 June 1926 - 16 July 1973
17 July 1973 - 26 April 1978
27 April 1978 - 23 April 1992
24 April 1992 - 26 September 1996
27 September 1996 - 13 November 2001
14 November 2001 - Present

AG

1900 - October 31 1981
1 November 1981 - Present

AL

1900 - 20 February 1914
21 February 1914 - 30 January 1925
31 January 1925 - 31 August 1928
1 September 1928 - 6 April 1939
7 April 1939 - 7 September 1943
8 September 1943 - 28 November 1944
29 November 1944 - 21 March 1992
22 March 1992 - Present

AM

1900 - May 27, 1918
May 28, 1918 - December 1, 1920
December 2, 1920 - August 22 1990
23 August 1990 - Present

AO

1900 - November 10, 1975
11 November 1975 - 24 August 1992
25 August 1992 - Present

AR

1900 - Present

AT

1900 - 11 November 1918
11 November 1918 - 20 October 1919
21 October 1919 - 30 April 1934
1 May 1934 - 12 March 1938
13 March 1938 - 12 April 1945
13 April 1945 - 25 October 1955
26 October 1955 - Present

AU

1900 - December 31, 1900
1 January 1901 - Present

AZ

1900 - 27 May 1918
28 May 1918 - 27 April 1920
28 April 1920 - 29 August 1991
30 August 1991 - Present

BA

1900 - November 30, 1918
1 December 1918 - 2 November 1945
29 November 1945 - February 28 1992
1 March 1992 - Present

BB

1900 - 29 November 1966
30 November 1966 - Present

BD

1900 - 13 August 1947
14 August 1947 - 15 December 1971
16 December 1971 - Present

BE

1900 - Present

BF

1900 - December 10 1958
December 11, 1958 - August 3, 1984
August 4, 1984 - Present

BG

1900 - 21 September 1908
22 September 1908 - 14 September 1946
September 15, 1946 - November 14, 1990
November 15, 1990 - Present

BH

1900 - 13 August 1971
14 August 1971 - Present

BI

1900 - September 30, 1922
November 1, 1922 - June 30, 1962
July 1, 1962 - November 27, 1966
November 28, 1966 - Present

BJ

1900 - 1903
1904 - 10 December 1958
11 December 1958 - 25 October 1975
26 October 1975 - 28 February 1990
1 March 1990 - Present

BN

1900 - 31 December 1983
1 January 1984 - Present

BO

1900 - Present

BR

1900 - Present

BS

1900 - 9 July 1973
10 July 1973 - Present

BT

1900 - Present

BW

1900 - 29 September 1966
30 September 1966 - Present

BY

1900 - May 27, 1918
May 26, 1918 - 26 July 1990
27 July 1990 - Present

BZ

1900 - September 20 1981
September 21, 1981 - Present

CA

1900 - Present

CD

1900 - November 14, 1908
15 November 1908 - 29 June 1960
30 June 1960 - 24 November 1965
25 November 1965 - 15 May 1997
16 May 1997 - Present

CF

1900 - 12 August 1960
13 August 1960 - 4 December 1976
4 December 1976 - 20 September 1979
21 September 1979 - Present

CG

1900 - 15 August 1960
14 August 1960 - 31 December 1968
January 1 1969 - 30 August 1992
31 August 1992 - Present

CH

1900 - Present

CI

1900 - 6 August 1960
7 August 1960 - Present

CL

1900 - Present

CM

1900 - July 19, 1922
July 20, 1922 - December 31 1959
1 January 1960 - Present

CN

1900 - 12 February 1912
1 January 1912 - 1 October 1949
1 October 1949 - Present

CO

1900 - Present

CR

1900 - Present

CU

1900 - 19 May 1902
20 May 1902 - Present

CV

1900 - 4 July 1975
5 July 1975 - Present

CY

1900 - 15 August 1960
16 August 1960 - Present

CZ

1900 - 27 October 1918
28 October 1918 - 30 September 1938
October 1 1938 - 23 May 1945
24 May 1945 - 25 February 1948
22 February 1948 - 23 April 1990
24 April 1990 - 31 December 1992
January 1 1993 - Present

DE

1900 - 8 November 1919
9 November 1919 - 29 January 1933
30 January 1933 - May 8, 1945
May 9 1945 - May 22 1949
23 May 1949 - 2 October 1990
7 October 1949 - 2 October 1990
3 October 1990 - Present

DJ

1900 - July 4, 1967
July 5, 1967 - June 26, 1977
June 27, 1977 - Present

DK

1900 - Present

DM

1900 - 1940
1941 - February 28 1967
1 March 1967 - Present

DO

1900 - Present

DZ

1900 - July 3, 1962
5 July 1962 - Present

EC

1900 - Present

EE

1900 - 23 February 1918
24 February 1918 - June 15 1940
June 16 1940 - 1940
1941 - 1944
1945 - 19 August 1991
20 August 1991 - Present

EG

1900 - 19 December 1914
19 December 1914 - 15 March 1922
28 February 1922 - 17 June 1953
18 June 1953 - 22 February 1958
22 February 1958 - 27 September 1961
28 September 1961 - Present

ER

1900 - 2 October 1935
3 October 1935 - 26 November 1941
5 May 1941 - 11 September 1974
12 September 1974 - 23 May 1993
24 May 1993 - Present

ES

1900 - 13 April 1931
14 April 1931 - 31 March 1939
1 April 1939 - 19 November 1975
20 November 1975 - Present

ET

1900 - 3 October 1935
4 October 1935 - 4 May 1941
5 May 1941 - 11 September 1974
12 September 1974 - 28 May 1991
28 May 1991 - Present

FI

1900 - 5 December 1917
6 December 1917 - Present

FJ

1900 - 9 October 1970
10 October 1970 - 5 October 1987
6 October 1987 - Present

FM

1900 - 27 June 1919
June 28, 1919 - July 17, 1947
July 18, 1947 - November 3, 1986
November 3, 1986 - Present

FR

1900 - June 21 1940
22 June 1940 - 25 August 1944
26 August 1944 - Present

GA

1900 - August 16 1960
August 17, 1960 - Present

GB

1900 - Present

GD

1900 - February 6 1974
February 7, 1974 - Present

GE

1900 - 25 May 1918
May 26, 1918 - 10 February 1921
11 February 1921 - 8 April 1991
9 April 1991 - Present

GH

1900 - 5 March 1957
6 March 1957 - June 30 1960
1 July 1960 - Present

GM

1900 - 17 February 1965
18 February 1965 - Present

GN

1900 - 1 October 1958
2 October 1958 - Present

GQ

1900 - 11 October 1968
12 October 1968 - Present

GR

1900 - 24 March 1924
25 March 1924 - 2 November 1935
3 November 1935 - 5 April 1941
6 April 1941 - 12 October 1944
13 October 1944 - 31 May 1973
1 June 1973 - Present

GT

1900 - Present

GW

1900 - 23 September 1973
24 September 1973 - Present

GY

1900 - 25 May 1966
26 May 1966 - 22 February 1970
23 February 1970 - Present

HN

1900 - Present

HR

1900 - November 30 1918
1 December 1918 - 28 November 1945
29 November 1945 - 24 June 1991
25 June 1991 - Present

HT

1900 - Present

HU

1900 - 28 February 1920
29 February 1920 - January 31 1946
1 February 1946 - 20 August 1949
20 August 1949 - 22 October 1989
23 October 1989 - Present

ID

1900 - 16 August 1945
17 August 1945 - Present

IE

1900 - 5 December 1921
6 December 1921 - 28 December 1937
29 December 1937 - Present

IL

1900 - 24 April 1920
25 April 1920 - 13 May 1948
14 May 1948 - Present

IN

1900 - 14 August 1947
15 August 1947 - 25 January 1950
26 January 1950 - Present

IQ

1900 - 25 April 1920
26 April 1920 - 2 October 1932
3 October 1932 - 14 February 1958
14 July 1958 - April 20, 2003
April 21, 2003 - Present

IR

1900 - 14 December 1925
15 December 1925 - 10 February 1979
11 February 1979 - Present

IS

1900 - November 30 1918
1 December 1918 - 16 June 1944
17 June 1944 - Present

IT

1900 - 1 June 1946
2 June 1946 - Present

JM

1900 - 5 August 1962
6 August 1962 - Present

JO

1900 - 10 April 1921
11 April 1921 - 24 May 1946
25 May 1946 - Present

JP

1900 - April 27, 1952
April 28, 1952 - Present

KE

1900 - 10 June 1920
11 June 1920 - 11 December 1963
12 December 1963 - 11 December 1964
12 December 1964 - Present

KG

1900 - 29 December 1922
30 December 1922 - 30 August 1991
31 August 1991 - Present

KH

1900 - 8 November 1953
9 November 1953 - 17 March 1970
18 March 1970 - 17 April 1975
17 April 1975 - 6 January 1979
7 January 1979 - 30 April 1989
1 May 1989 - 23 September 1993
24 September 1993 - Present

KI

1900 - 11 July 1979
12 July 1979 - Present

KM

1900 - 5 July 1975
6 July 1975 - Present

KN

1900 - 27 February 1967
28 February 1967 - Present

KP

1900 - August 28, 1910
29 August 1910 - 15 August 1945
September 6, 1945 - 8 September 1948
8 September 1948 - Present

KR

1900 - 28 August 1910
29 August 1910 - 15 August 1945
September 6, 1945 - 14 August 1948
15 August 1948 - Present

KW

1900 - 18 June 1961
19 June 1961 - Present

KZ

1900 - 29 December 1922
30 December 1922 - 15 December 1991
16 December 1991 - Present

LA

1900 - 21 October 1953
22 October 1953 - 1 December 1975
2 December 1975 - Present

LB

1900 - 31 August 1920
1 September 1920 - 21 November 1943
22 November 1943 - Present

LC

1900 - 21 February 1979
22 February 1979 - Present

LI

1900 - Present

LK

1900 - 3 February 1948
4 February 1948 - 21 May 1972
22 May 1972 - Present

LR

1900 - Present

LS

1900 - 3 October 1966
4 October 1966 - Present

LT

1900 - 15 February 1918
16 February 1918 - 14 June 1940
15 June 1940 - 21 June 1941
22 June 1941 - June 1944
July 1944 - 10 March 1990
11 March 1990 - Present

LU

1900 - Present

LV

1900 - 17 November 1918
18 November 1918 - 4 August 1940
5 August 1940 - 9 July 1941
10 July 1941 - 12 October 1944
13 October 1944 - 3 May 1990
4 May 1990 - Present

LY

1900 - 28 September 1911
29 September 1911 - 23 December 1951
24 December 1951 - 31 August 1969
1 September 1969 - 1 March 1977
2 March 1977 - 27 August 2011
28 August 2011 - Present

MA

1900 - 29 March 1912
March 30, 1912 - March 2, 1956
27 November 1912 - 6 April 1956
7 April 1956 - Present

MC

1900 - Present

MD

1900 - 29 December 1922
30 December 1922 - 22 June 1990
23 June 1990 - Present

ME

1900 - 11 November 1918
1 December 1918 - 28 November 1945
29 November 1945 - 26 April 1992
27 April 1992 - 3 June 2006
3 June 2006 - Present

MG

1900 - 25 June 1960
26 June 1960 - Present

MH

1900 - 27 June 1919
June 28, 1919 - July 17, 1947
July 18, 1947 - October 20, 1986
October 21, 1986 - Present

MK

1900 - 30 November 1918
1 December 1918 - 28 November 1945
29 November 1945 - 7 September 1991
8 September 1991 - Present

ML

1900 - 21 September 1960
22 September 1960 - Present

MM

1900 - 31 July 1943
1 August 1943 - 27 March 1945
26 March 1945 - 3 January 1948
4 January 1948 - 3 March 1962
4 March 1962 - 18 September 1988
18 September 1988 - 29 March 2011
30 March 2011 - Present

MN

1900 - 28 December 1911
29 December 1911 - 25 November 1924
November 26, 1924 - February 12, 1992
February 13, 1992 - Present

MR

1900 - 27 November 1960
28 November 1960 - Present

MT

1900 - 20 September 1964
21 September 1964 - 12 December 1974
13 December 1974 - Present

MU

1900 - 11 March 1968
12 March 1968 - Present

MV

1900 - 25 July 1965
26 July 1965 - Present

MW

1900 - 5 July 1907
6 July 1907 - 31 July 1953
1 August 1953 - 5 July 1964
6 July 1964 - Present

MX

1900 - Present

MY

1900 - 31 March 1946
1900 - 29 June 1946
1900 - 15 September 1963
1900 - 1 April 1946
1 April 1946 - 30 January 1948
30 June 1946 - 15 September 1963
1 February 1948 - 15 September 1963
16 September 1963 - Present

MZ

1900 - 24 June 1975
25 June 1975 - Present

NA

1900 - 9 July 1915
10 July 1915 - 31 May 1961
31 May 1961 - 8 February 1990
9 February 1990 - Present

NE

1900 - 2 August 1960
3 August 1960 - Present

NG

January 1 1900 - December 31 1913
January 1 1900 - December 31 1913
January 1 1914 - September 30 1960
1 October 1960 - Present

NI

1900 - Present

NL

1900 - Present

NO

1900 - 25 October 1905
26 October 1905 - Present

NP

1900 - 27 May 2008
28 May 2008 - Present

NR

1900 - December 16 1920
December 17 1920 - 30 September 1947
1 November 1947 - 30 January 1968
31 January 1968 - Present

NZ

1900 - 25 September 1907
26 September 1907 - 24 November 1947
25 November 1947 - Present

OM

1900 - Present

PA

1900 - 2 November 1903
3 November 1903 - Present

PE

1900 - Present

PG

1900 - 27 June 1919
1900 - 30 June 1949
28 June 1919 - 30 June 1949
1 July 1949 - 15 September 1975
16 September 1975 - Present

PH

1900 - 14 November 1935
15 November 1935 - 3 July 1946
July 4, 1946 - Present

PK

1900 - 14 August 1947
14 August 1947 - 22 March 1956
23 March 1956 - Present

PL

1900 - 4 November 1916
5 November 1916 - 10 November 1918
11 November 1918 - 6 October 1939
6 October 1939 - 22 May 1945
23 May 1945 - 12 September 1989
13 September 1989 - Present

PS

1900 - 24 April 1920
25 April 1920 - 13 May 1948
14 May 1948 - 14 November 1988
15 November 1988 - Present

PT

1900 - 4 October 1910
October 5, 1910 - Present

PW

1900 - 27 June 1919
June 28, 1919 - July 17, 1947
July 18, 1947 - September 30, 1994
October 1, 1994 - Present

PY

1900 - Present

QA

1900 - 2 November 1916
3 November 1916 - 31 August 1971
1 September 1971 - Present

RO

1900 - 29 December 1947
30 December 1947 - 21 December 1989
22 December 1989 - Present

RS

1900 - 30 November 1918
1 December 1918 - 28 November 1945
29 November 1945 - 26 April 1992
27 April 1992 - 2 June 2006
3 June 2006 - Present

RU

1900 - 6 November 1917
7 November 1917 - 25 December 1991
26 December 1991 - Present

RW

1900 - September 30, 1922
November 1, 1922 - June 30, 1962
1 July 1962 - Present

SA

1900 - 2 November 1921
1900 - 1916
13 January 1902 - 1920
10 June 1916 - 8 January 1926
1921 - 8 January 1926
9 January 1926 - 22 September 1932
23 September 1932 - Present

SB

1900 - 6 July 1978
7 July 1978 - Present

SC

1900 - 28 June 1976
29 June 1976 - Present

SD

1900 - 31 December 1955
1 January 1956 - 24 May 1969
25 May 1969 - October 9 1985
11 October 1985 - Present

SE

1900 - 25 October 1905
October 26 1905 - Present

SG

1900 - 31 March 1946
1 April 1946 - 15 September 1963
16 September 1963 - 8 August 1965
9 August 1965 - Present

SI

1900 - 30 November 1918
1 December 1918 - 28 November 1945
29 November 1945 - 24 June 1991
25 June 1991 - Present

SK

1900 - 27 October 1918
28 October 1918 - 29 September 1938
30 September 1938 - 23 May 1945
24 May 1945 - 24 February 1948
21 February 1948 - 22 April 1990
23 April 1990 - 31 December 1992
1 January 1993 - Present

SL

1900 - 26 April 1961
27 April 1961 - Present

SM

1900 - Present

SN

1900 - 3 April 1959
4 April 1959 - 19 August 1960
20 August 1960 - Present

SO

1900 - 27 November 1941
1900 - 30 June 1960
1900 - 9 February 1920
July 1, 1960 - October 20 1969
21 October 1969 - 26 January 1991
27 January 1991 - 5 April 2004
6 April 2004 - Present

SR

1900 - 14 December 1954
15 December 1954 - 24 November 1975
25 November 1975 - Present

SS

1900 - 31 December 1955
1 January 1956 - 24 May 1969
25 May 1969 - 10 October 1985
10 October 1985 - 14 January 2011
15 January 2011 - Present

ST

1900 - 11 July 1975
12 July 1975 - Present

SV

1900 - Present

SY

1900 - 24 July 1920
1 September 1920 - 30 November 1924
2 September 1920 - 3 December 1936
3 September 1920 - 30 November 1924
1921 - 1936
1 December 1924 - 13 May 1930
14 May 1930 - January 31 1958
22 February 1958 - 27 September 1961
28 September 1961 - Present

SZ

1900 - 30 May 1902
31 May 1902 - 5 September 1968
6 September 1968 - Present

TD

1900 - 10 August 1960
11 August 1960 - Present

TG

1900 - 26 December 1916
27 August 1914 - 26 April 1960
27 April 1960 - Present

TH

1900 - Present

TJ

1900 - 29 April 1918
30 April 1918 - 8 September 1991
9 September 1991 - Present

TL

1900 - 16 July 1976
17 July 1976 - 24 October 1999
25 October 1999 - Present

TM

1900 - 19 April 1918
30 April 1918 - 26 October 1991
27 October 1991 - Present

TN

1900 - 24 July 1957
25 July 1957 - Present

TO

18 May 1900 - 3 June 1970
4 June 1970 - Present

TR

1900 - 2 March 1924
3 March 1924 - Present

TT

1900 - 30 August 1962
31 August 1962 - Present

TV

1900 - 30 September 1978
1 October 1978 - Present

TZ

1900 - 19 July 1922
1900 - 11 January 1964
20 July 1922 - 8 December 1961
9 December 1961 - 25 April 1964
January 12, 1964 - April 25, 1964
26 April 1964 - Present

UA

1900 - 9 March 1919
10 March 1919 - 23 August 1991
24 August 1991 - Present

UG

1900 - 8 October 1962
9 October 1962 - Present

US

1900 - Present

UY

1900 - Present

UZ

1900 - September 1 1920
September 2, 1920 - 30 August 1991
31 August 1991 - Present

VA

1900 - 10 February 1929
11 February 1929 - Present

VC

1900 - 26 October 1979
27 October 1979 - Present

VE

1900 - Present

VN

1900 - 20 July 1954
September 2, 1945 - July 1 1976
21 July 1954 - 30 April 1975
2 July 1976 - Present

VU

1900 - 1905
1906 - 29 July 1980
30 July 1980 - Present

WS

1900 - 29 August 1914
30 August 1914 - 31 December 1961
1 January 1962 - Present

YE

1900 - 17 January 1963
1900 - 29 October 1918
30 October 1918 - 25 September 1962
April 4, 1962 - November 29, 1967
27 September 1962 - 21 May 1990
30 November 1967 - 21 May 1990
22 May 1990 - Present

ZA

1900 - 30 May 1910
1900 - 31 May 1902
1900 - 30 May 1902
1900 - 30 May 1910
30 May 1902 - 30 May 1910
31 May 1902 - 30 May 1910
31 May 1910 - 30 May 1961
31 May 1961 - Present

ZM

1900 - March 31 1924
1 April 1924 - 31 July 1953
1 August 1953 - 23 October 1964
24 October 1964 - Present

ZW

1900 - 11 September 1923
12 September 1923 - 31 July 1953
1 August 1953 - 10 November 1965
11 November 1965 - Present

ab

1900 - 29 December 1922
30 December 1922 - 8 April 1991
April 9 1991 - 11 October 1999
12 October 1999 - Present

ck

1900 - December 31 1948
1 January 1949 - 3 August 1965
4 August 1965 - Present

ko

1900 - 30 November 1918
1 December 1918 - 28 November 1943
29 November 1943 - September 21, 1992
September 22, 1992 - February 1, 1999
February 2 1999 - June 1 2006
June 2 2006 - 16 February 2008
17 February 2008 - Present

nc

1900 - 15 August 1960
16 August 1960 - 14 November 1983
15 November 1983 - Present

nk

1900 - 29 December 1922
30 December 1922 - 1 September 1991
2 September 1991 - Present

nu

1900 - 10 June 1901
11 June 1901 - 18 October 1974
19 October 1974 - Present

os

1900 - 29 December 1920
30 December 1920 - 8 April 1991
9 April 1991 - 20 December 1991
21 December 1991 - Present

so

1900 - 30 June 1960
July 1 1960 - 20 October 1969
21 October 1969 - May 17 1991
May 18, 1991 - Present

ts

1900 - 19 December 1918
20 December 1918 - 22 June 1990
23 June 1990 - 1 September 1990
2 September 1990 - Present

tw

1900 - December 31 1911
1 January 1912 - Present

ws

1900 - 14 November 1975
13 November 1975 - 26 February 1976
February 27, 1976 - Present