Era
21st century
27
20th century
11
20th century --
7
1947-
6
1991-
6
19th century
4
21st century --
4
1947
3
1976-
3
2000-
3
1933-1945
2
1949-1976
2
1959-
2
1976-2000
2
1977-
2
1990-
2
2001-
2
2002
2
1788-1851
1
17th century
1
1801-1917
1
1837-1901
1
1855-1957
1
1865-1918
1
1865-1921
1
1865-1933
1
1870-1924
1
1882-1945
1
1893-1976
1
1918 - 1945
1
1918-1932
1
1918-1933
1
1919-1933
1
1923-
1
1951
1
1952-1970
1
1955-
1
1960-
1
1961-1994
1
1963 April 11
1
1970-1981
1
1975
1
1976 - 2000
1
1979-1991
1
1981-
1
1989-
1
1991
1
1993
1
1994
1
1994-
1
more ...