Era
1991-
94
20th century
27
21st century
14
1985-1991
12
1952-
7
1989-
7
19th century
7
Civil War, 1994-
7
1931-2007
4
1990-
3
Since 1991
3
1865-1911
2
1878-1953
2
1925-1953
2
1945-
2
1945-1991
2
1953-1985
2
1970-1991
2
1991-2000
2
1672-1725
1
1700-1899
1
1716-1791
1
1800 - 1899
1
1801-1917
1
1807-1845
1
1828-1910
1
1841-1918
1
1843-1902
1
1844-1930
1
1851-1934
1
1861-1917
1
1863-1920
1
1863-1938
1
1870-1924
1
1871-1918
1
1873-1920
1
1878-1952
1
1887-1938
1
1893-1984
1
1894-1917
1
1898-1956
1
18th century
1
1912-1926
1
1917-1970
1
1921-1989
1
1923-
1
1929-2008
1
1930-
1
1931-
1
1936-1953
1
more ...