Era
20th century
52
19th century
15
17th century
11
16th century
7
18th century
6
1939-1975
5
Civil War, 1936-1939
5
Early church, ca. 30-600
4
21st century
3
Modern period, 1600-
3
Revolution, 1789-1799
3
Revolution, 1910-1920
3
To 1500
3
Classical period, 1500-1700
2
Middle Ages, 500-1500
2
Middle Ages, 600-1500
2
Renaissance, 1450-1600
2
To 500
2
1248?-1309
1
1479-1555
1
14th century
1
1549-1580
1
1651-1695
1
1741-1803
1
1748?-1793
1
1767-1845
1
1786-1858
1
1789-1815
1
1814-1881
1
1823-1886
1
1830-1904
1
1851-1934
1
1867-1928
1
1870-1919
1
1871-1946
1
1877-1939
1
1878-1974
1
1882-1948
1
1886-1939
1
1895-1970
1
1895-1979
1
1906-1975
1
1908-1986
1
1909-1943
1
1910-1946
1
1914-1933
1
1914-2006
1
1917-1942
1
1919-1952
1
1925-1953
1
more ...