Era
20th century
380
21st century
201
19th century
145
1564-1616
53
18th century
33
17th century
30
16th century
25
1945-
24
Early modern, 1500-1700
16
1946-
12
1989-
10
1945-1989
9
1882-1941
8
1898-1956
8
1960-
8
2007-
8
To 1500
8
1947-
7
2016
7
1952-
6
1993-
6
15th century
5
1797-1851
5
1812-1870
5
1900-1999
5
1918-1945
5
Qing dynasty, 1644-1912
5
1775-1817
4
1933-1945
4
1949-
4
1957-
4
1969-
4
1980-
4
1991-
4
2002-
4
Civil War, 2011-
4
Early modern and Elizabethan, 1500-1600
4
-approximately 1540
3
1394-1437
3
1430-1460
3
1451-1488
3
1834-1896
3
1854-1900
3
1878-1953
3
1888-1965
3
1912-1928
3
1918-2015
3
1930-2008
3
1932-2014
3
1936-1945
3
more ...