Cyfnod
20th century
7
1989-
5
Civil War, 1861-1865
5
19th century
4
1945-1989
3
21st century
3
1933-1945
2
1588-1679
1
1735-1818
1
1738-1796
1
1748-1829
1
1783-1789
1
1788-1836
1
1806-1873
1
1815-1861
1
1823-1886
1
1837-1911
1
1848-
1
1858-1943
1
1876-1916
1
1880-1968
1
1882-1945
1
1888-1962
1
1893-1956
1
1894-1969
1
1899-1961
1
1904-1967
1
1909-1937
1
1912-2006
1
1917-1963
1
1918-1945
1
1919-1933
1
1926-2016
1
1927-1993
1
1928-1960
1
1940-1993
1
1942-
1
1945-1990
1
1959-1990
1
1969-
1
1974-
1
2001-
1
2001-2009
1
2009-
1
2009-2017
1
French and Indian War, 1754-1763
1
Moncada Barracks Attack, 1953
1
Revolution, 1775-1783
1
Revolution, 1959
1
War of 1812
1