Era
20th century
452
19th century
243
21st century
212
18th century
70
1945-
70
17th century
60
16th century
58
1989-
53
To 1500
36
2000-
25
1564-1616
24
1991-
24
2001-2009
22
1960-
20
Early modern, 1500-1700
17
1933-1945
14
1980-
14
1918-1945
13
1976-2000
13
1945-1989
12
1990-
11
1997-
10
2002-
9
2009-
9
1946-
8
1976-2002
8
1988-
8
1994-
8
Middle Ages, 600-1500
8
Revolution, 1789-1799
8
1947-
7
1979-
7
476-1492
7
Civil War, 1642-1649
7
Civil War, 1861-1865
7
Early modern and Elizabethan, 1500-1600
7
To 146 B.C.
7
1066-1485
6
1945-1964
6
1979-1997
6
1993-
6
To 1492
6
15th century
5
1789-1900
5
1791-1864
5
1964-
5
1964-1979
5
1975-
5
1978-
5
Renaissance, 1450-1600
5
more ...