Era
20th century
2,804
1933-1945
1,561
1918-1933
1,328
1945-
1,130
1990-
1,074
1945-1990
793
21st century
552
19th century
511
1789-1900
488
1871-1918
429
1889-1945
424
1918-1945
415
1900-1999
405
1989-
346
1989-1990
305
Unification, 1990
249
1888-1918
229
1918-1938
203
20e siècle
203
1815-1898
193
18th century
191
2000-2099
183
1945-1989
158
1815-1870
151
1871-
150
1867-1918
141
1991-
126
To 1775
119
1806-1848
112
Since 1945
110
265-30 B.C.
109
To 146 B.C.
108
1876-1967
106
1917-1936
106
Since 1990
106
1945-1955
97
1789-1815
96
1848-1870
93
1815-1866
89
1982-1990
82
1913-1992
81
1648-1789
80
1871-1888
80
1517-1648
79
1938-1945
77
1985-1991
77
1871-1933
72
17th century
71
1894-1917
70
30 B.C.-284 A.D.
69
more ...