Era
21st century
14
2001-
13
2009-
12
20th century
12
20th century --
8
1946-
4
2001-2009
4
21st century --
4
1775-1783
3
1939-1945 --
3
1945
3
1945-1989
3
1946
3
1989-
3
1993-2001
3
2009
3
1847-1931
2
1861-1865
2
1882-1945
2
18th century --
2
1924-
2
1933-1945
2
1945-
2
1969-1974
2
1977-1981
2
1981-
2
1989
2
1993
2
2001
2
Biography
2
10th
1
1783-1789
1
1815-1861
1
1844-1922
1
1847-1922
1
1857-1945
1
1860-1951
1
1865
1
1865-1918
1
1865-1921
1
1865-1933
1
1867-1919
1
1884-1972
1
1913
1
1918 - 1945
1
1918-1932
1
1919-1933
1
1922-
1
1932-
1
1933-2001
1
more ...