Era
21st century
33
20th century
24
2008-
9
1975-
8
1975-2008
7
Siglo XXI
7
18th century
5
19th century
5
1918-1975
3
Siglo XX
3
1886-1931
2
To 1500
2
1452-1516
1
1540-1810
1
16th century
1
17th century
1
1841-1920
1
1929
1
1939-1975
1
1941-2009
1
1944-
1
1945-1989
1
1975
1
1975-1982
1
1982-
1
Carlist War, 1873-1876
1
Carlist Wars, 1873-1876
1
Peter IV, 1336-1387
1
S XXI
1
Siglo XVIII
1
Since 1975
1
s. 20
1
s.18
1