Historical Period
20th century
147
19th century
91
21st century
51
To 1500
51
Civil War, 1861-1865
31
1945-
20
18th century
16
1989-
12
1990-
8
17th century
6
1865-
6
1980-2020
6
1980-
5
1991-
5
1994-
5
1865-1950
4
1993-
4
697-1508
4
Ottoman Empire, 1288-1918
4
1288-1918
3
1801-1917
3
1900-1999
3
1909-1918
3
1918-1945
3
1945-1990
3
1950-
3
1962-1990
3
Colonial period, ca. 1600-1775
3
Medieval, 500-1500
3
Post-exilic period, 586 B.C.-210 A.D.
3
Primitive and early church, ca. 30-600
3
Revolution, 1775-1783
3
To 476
3
To 711
3
Unification, 1990
3
-636
2
1503-1734
2
1533-1917
2
16th century
2
1783-1859
2
1799-1917
2
1809-1865
2
1824-1948
2
1848-1918
2
1855-1880
2
1861-1865
2
1864-1946
2
1865-1945
2
1906-1975
2
1918-1933
2
more ...