Era
20th century
517
19th century
198
1900-1999
183
21st century
75
1989-
57
1800-1899
53
1945-1989
52
18th century
39
1945-
37
2000-2099
30
1837-1901
29
Since 1900
26
1921-2002
25
2001-2009
19
1933-1945
16
1980-
16
1806-1873
15
1632-1704
14
1951-
14
Since 1945
13
Since 1989
13
1800-1999
12
1901-1936
12
1783-1865
11
1990-
11
1588-1679
10
1809-1898
10
1899-1992
10
1900-2099
10
Civil War, 1983-2005
10
1689-1755
9
1700-1799
9
1801-1917
9
1945-1953
9
1960-
9
1981-1989
9
1700-1899
8
1769-1821
8
1789-1815
8
17th century
8
1805-1859
8
1910-1936
8
1911-1987
8
1954-
8
1960-1980
8
1939-1945
7
1945-1980
7
1946-1990
7
1961-1963
7
1985-
7
more ...