Era
20th century
80
19th century
50
18th century
47
17th century
33
16th century
27
1900-1999
24
21st century
20
476-1492
19
1492-1648
17
1945-
17
To 1500
16
1800-1899
15
1700-1799
14
1648-1789
10
1800-1999
10
1789-1900
9
2000-2099
8
Since 1945
6
1492-
5
1871-1918
5
1918-1945
5
1989-
5
To 476
5
1066-1485
4
1500-1599
4
1600-1699
4
1603-1714
4
1642-1660
4
Early modern, 1500-1700
4
Middle Ages, 600-1500
4
Ottoman Empire, 1288-1918
4
Since 1492
4
-632
3
1288-1918
3
1492-1789
3
1700-1899
3
1783-1865
3
1789-1815
3
1882-1941
3
1897-1990
3
1900-2099
3
1970-
3
711-1516
3
Medieval, 500-1500
3
Ming dynasty, 1368-1644
3
Qing dynasty, 1644-1912
3
To 1172
3
To 1810
3
1268-1559
2
1500-1700
2
more ...