Era
20th century
592
1900-1999
358
19th century
185
1939-1945
118
21st century
106
1800-1899
71
Civil War, 1861-1865
65
1939 - 1945
50
2000-2099
44
1861-1865
41
18th century
40
1946-
33
1706-1790
28
1900-2099
27
1945-
25
1949-
25
1951-
24
17th century
22
1939-
21
1943-
21
1955-
21
Early modern, 1500-1700
21
1944-
20
1948-
20
1960-
20
20e siècle
20
1900 - 1999
19
1937-
19
1980-
19
1933-1945
18
1934-
18
1938-
18
1945-1989
18
16th century
17
1700-1799
17
1941-
17
1981-
17
1950-
16
1956-
16
1989-
16
1921-
15
1947-
15
1964-
15
1969-
15
Since 1945
15
1923-
14
1933-
14
1936-
14
1954-
14
1970-
14
more ...