Cyfnod
Civil War, 1936-1939
168
20th century
164
19th century
38
21st century
25
1939-1975
14
To 1500
14
711-1516
13
1869-1940
12
18th century
11
1931-1939
8
Republic, 1931-1939
8
Civil War, 1861-1865
6
1516-1700
4
1950-
4
Siege, 1936-1939
4
16th century
3
17th century
3
1810-
3
1817-1888
3
1840-1891
3
1898-1987
3
1988-
3
To 1830
3
14th century
2
1864-1936
2
1886-1931
2
1946-1974
2
1959-
2
1973-1988
2
1974-
2
1975-
2
21th century
2
476-1492
2
Civil War, 1860-1862
2
Civil War, 1876-1877
2
Classical period, 1500-1700
2
Empire, 30 B.C.-476 A.D.
2
Revolution, 1910-1920
2
To 622
2
-1305
1
-1996
1
1221-1284
1
1398-1458
1
13th century
1
1469-1527
1
1529?-1588
1
1539-1616
1
1564-1616
1
1564-1642
1
1599-1658
1
rhagor ...