Era
21st century
61
20th century
17
21st century --
15
20th century --
13
1947-
11
1991-
9
2000-
7
19th century
6
1976-
5
1976-2000
4
1933-1945
3
1947
3
1977-
3
19th century --
3
1949-1976
2
1959-
2
1970-
2
1979-1991
2
1980-
2
1989-
2
1990-
2
2000
2
2001-
2
2002
2
1788-1851
1
17th century
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
18th century
1
1918 - 1945
1
1918-1932
1
1918-1933
1
1919-1933
1
1923-
1
1925-
1
1927-1959
1
1945-
1
1946-
1
1948-1960
1
1949-
1
195-
1
1951
1
more ...