Era
19th century
39
20th century
34
18th century
25
17th century
15
1900-1999
10
1800-1899
9
1792-1822
8
16th century
7
1724-1804
6
1771-1832
6
Jurassic
6
To 1500
6
Ming dynasty, 1368-1644
5
Quaternary
5
1700-1799
4
Early works to 1800
4
Tertiary
4
Triassic
4
1511?-1553
3
15th century
3
1667-1745
3
1759-1805
3
1822-1903
3
1856-1950
3
1900 - 1999
3
1914-1918
3
1918-
3
1918-1933
3
1918-1945
3
21st century
3
86 B.C.-34 B.C
3
Cambrian
3
Cretaceous
3
Geschichte
3
Middle English, 1100-1500
3
To 332 B.C
3
-approximately 1204
2
1295-1366
2
1368-1644
2
1496-1576
2
1500-1800
2
1523-1585
2
1591-1667
2
1600 - 1799
2
1600-1699
2
1638-1715
2
1713-1768
2
1738-1809
2
1744-1803
2
1746-1827
2
more ...