Era
20th century
2,902
1900-1999
1,212
1933-1945
1,195
19th century
854
1918-1933
527
18th century
432
1889-1945
331
1939-1945
329
1945-1990
277
1990-
241
21st century
208
1800-1899
203
1918-1945
199
1871-1918
177
17th century
166
1945-1955
161
16th century
155
1800-1999
134
1945-
131
Unification, 1990
130
1700-1799
112
1789-1900
107
World War, 1939-1945
99
Since 1990
94
2000-2099
85
1888-1918
79
To 1500
77
1815-1898
69
1813-1883
67
Since 1945
63
1700-1899
62
1483-1546
60
1500-1599
54
1939 - 1945
52
1900 - 1999
48
1844-1900
47
1914-1918
47
Middle Ages, 600-1500
45
1685-1750
42
1871-
42
1900-2099
42
1859-1941
40
1517-1648
38
1749-1832
37
1864-1920
35
1800-1933
34
1848-1870
34
Revolution, 1918
34
Since 1900
34
1989-
30
more ...