Era
20th century
4,974
1974-
2,284
19th century
2,128
1900-1999
1,623
21st century
1,426
Period of discoveries, 1385-1580
1,231
18th century
1,125
16th century
1,124
1933-1974
1,112
1910-1974
1,041
17th century
919
1800-1899
715
Since 1974
715
Revolution, 1974
712
1816-1826
613
To 1385
506
1889-1970
475
20e siècle
441
Early works to 1800
402
To 1500
370
1900 - 1999
369
2000-2099
354
1385-1580
346
1789-1900
331
John VI, 1816-1826
308
1700-1799
288
1910-1926
285
Spanish dynasty, 1580-1640
277
1500-1599
273
1828-1834
271
1826-1853
269
1763-1822
254
1933-
247
1800-1999
225
1918-1974
224
1526-1765
209
Revolution, 1961-1975
208
1699-1782
207
Miguel I, 1828-1834
204
Revolution, 1640
202
711-1516
201
Maria I, 1777-1816
186
Modern, 1580-
186
To 1822
185
1600-1699
172
21e siècle
157
Joseph, 1750-1777
157
John IV, 1640-1656
156
1900-2099
144
Since 1900
137
more ...