Era
- 20th century 18 results
- 19th century 12 results
- 1993- 4 results
- 1613-1689 2 results
- 1689-1801 2 results
- 1856-1924 2 results
- 1870-1938 2 results
- 1871-1918 2 results
- 18th century 2 results
- 1914-1945 2 results
- 1918-1945 2 results
- 1930- 2 results
- 1942- 2 results
- 1945- 2 results
- 1945-1990 2 results
- 1947- 2 results
- 1963-1978 2 results
- 1973-1993 2 results
- 1988- 2 results
- 1994- 2 results
- 21st century 2 results
- 30 B.C.-640 A.D. 2 results
- 939-1428 2 results
- Civil War, 1861-1865 2 results
- Ottoman Empire, 1288-1918 2 results
- Partition, 1947 2 results
- Period of Consolidation, 1462-1605 2 results
- Qing dynasty, 1644-1912 2 results
- Song dynasty, 960-1279 2 results
- To 70 A.D. 2 results
- Unification, 1990 2 results
- ca. 1025-ca. 1055 2 results