Era
20th century
8
1980-
7
1982-
6
2000-
6
1945-
5
1988-2000
5
21st century
4
1886-1931
3
1970-
3
1973-
3
1983-
3
Since 1945
3
1886-1939
2
1945-1995
2
1955-
2
1968-
2
1970-1988
2
1973-1985
2
1985-2002
2
Since 1980
2
1824-1920
1
1841-1920
1
1886-1931. \
1
1896-1898
1
1917-1936
1
1931-1939
1
1943-
1
1945-1983
1
1945-1989
1
1947-
1
1958-
1
1971-
1
1971-1991
1
1974-
1
1976-
1
1976-2000
1
1980-1984
1
1982-2006
1
1983-2002
1
1984-
1
1985-
1
1988-
1
1995-
1
19th century
1
2002-
1
Since 1900
1
Since 1947
1
Since 1965
1
Since 1970
1
Since 1974
1
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