Era
20th century
582
1900-1999
232
1945-
231
21st century
152
19th century
148
1864-1920
121
1900 - 1999
100
Since 1945
100
1918-1945
84
2000-2099
77
1918-
71
1945-1989
71
18th century
60
1939-1945
58
Geschichte
56
1818-1883
54
Colonial period, ca. 1600-1775
52
To 1775
47
1800-1899
41
1989-
39
1933-1945
37
20e siècle
37
1914-
31
17th century
29
1800-1999
29
1991-
29
Since 1918
29
1600-1775
28
1700-1799
28
1947-
28
1901-1991
27
1914-1918
27
1958-
27
1806-1882
25
1865-1950
25
1775-1783
24
Civil War, 1861-1865
24
Revolution, 1775-1783
24
1889-1951
23
Since 1989
21
1858-1917
20
1945-1964
20
1970-
20
1980-
19
1985-
19
1949-
18
1964-1979
18
1976-
18
1976-2000
18
1868-
17
more ...