Era
20th century
148
1564-1616
100
19th century
90
18th century
20
1948-
13
Early modern, 1500-1700
13
17th century
12
1812-1870
12
21st century
11
1929
10
1939-1945
10
Civil War, 1861-1865
10
1900-1999
8
1918-1945
8
1947-
8
German occupation, 1940-1945
8
1491-1547
7
16th century
7
1899-1986
7
1944-
7
1960-
7
active 11th century
7
-30 B.C.
6
1800-1899
6
1853-1890
6
1933-1945
6
1939-1975
6
1946-
6
1949-
6
Civil War, 1936-1939
6
1507-1536
5
1533-1603
5
1819-1901
5
1899-1961
5
1911-1983
5
1942-
5
1943-
5
1945-1970
5
1969-
5
2233-2371
5
83 B.C.?-30 B.C.
5
British occupation, 1765-1947
5
Colonial period, ca. 1600-1775
5
1387-1422
4
1700-1799
4
1819-1861
4
1879-1970
4
1895-1974
4
1908-1960
4
1927-1987
4
more ...