Era
20th century
31
1900-1999
14
Civil War, 1936-1939
9
1936-1939
7
1939-1975
7
711-1516
6
1515-1582
5
active 711
5
1879?-1955 or 1956
4
1914-1933
4
21st century
4
1491-1556
3
1746-1828
3
1900 - 1999
3
1939-
3
1957-
3
711 - 1516
3
Dictatorship, 1923-1930
3
Revolution, 1931
3
1500 - 1700
2
1539-1616
2
1541?-1614
2
16th century
2
1842-1908
2
1850-1925
2
1852-1926
2
1869-1946
2
1870-1940
2
1883-1962
2
1887-1969
2
1890-
2
1914-1931
2
1926-
2
19th century
2
8th century
2
(1043-1099)
1
(1043-1099;
1
(1842-1908)
1
-1539
1
1081-1126
1
1136-1173
1
1182-1226
1
1310?-1351
1
1311-1350
1
1487-1560
1
1492
1
1500-1599
1
1500-1700
1
1505-1533
1
1516-1700
1
more ...