Era
20th century
45
19th century
27
21st century
18
711-1516
12
18th century
9
To 1500
5
1516-1700
4
1939-1975
4
16th century
3
17th century
3
1817-1888
3
1840-1891
3
1898-1987
3
To 1830
3
1864-1936
2
1886-1931
2
Civil War, 1936-1939
2
Classical period, 1500-1700
2
To 622
2
1469-1527
1
14th century
1
1529?-1588
1
1539-1616
1
1564-1616
1
1564-1642
1
1673-1743
1
1700-
1
1781-1865
1
1788-1808
1
1810-
1
1813-1833
1
1830-1898
1
1831-1872
1
1853-1895
1
1865-1898
1
1865-1918
1
1865-1921
1
1871-1917
1
1873-1967
1
1883-1955
1
1899-1902
1
1916-1988
1
1918-1945
1
1919-1933
1
1920-1970
1
1923-2015
1
1925-2017
1
1933-1945
1
1937-
1
1944-
1
more ...