Era
1945-
Since 1945
1954-
57
1964-1985
43
1945-1964
39
1954-1964
36
1964-
23
1945-1982
22
1945-1989
17
1948-
12
1948-1980
12
1985-
10
1980-
7
20th century
7
1918-
6
1965-1975
5
1982-
5
1945-1985
4
1985-2002
4
1950-
3
1971-1990
3
Since 1918
3
Since 1964
3
1945 - 1982
2
1945-1954
2
1951-
2
1964
2
1970-
2
1974-
2
1975-1985
2
Since 1900
2
Since 1985
2
1883-1954
1
1900-1999
1
1902-1976
1
1910-1974
1
1918
1
1926-2016
1
1930-1945
1
1945
1
1945 ****
1
1945 - 1989
1
1945 1964
1
1945- Congresses
1
1945-1955
1
1945-1960
1
1945-1962
1
1945-1983
1
1945-1990
1
1945-1991
1
more ...