Era
20th century
316
21st century
114
1564-1616
68
19th century
60
1900-1999
56
1946-
52
1945-
36
2011-2020
34
Revolution, 1775-1783
25
Early modern, 1500-1700
24
1948-
22
1952-
22
1749-1838
21
1968-
20
1933-1945
19
2001-
19
Civil War, 1861-1865
19
2000-2099
18
1874-1965
16
1961-1975
16
1929-1968
15
1732-1799
14
1889-1945
14
1941-
14
1963-
14
2017-2021
14
1775-1783
13
17th century
13
1890-
13
1966-
13
1939-1945
12
1944-
12
1959-
12
1982-
12
1984-
12
1985-
12
2000-
12
2017-
12
1917-1963
11
1918-1945
11
1926-
11
1942-2016
11
1954-2014
11
1955-
11
1960-
11
1964-
11
1951-
10
Civil War, 2011-
10
16th century
9
1800-1899
9
more ...