Era
20th century
6
1906-1989
2
1928-
2
Civil War, 1861-1865
2
1667-1745
1
1820-1892
1
1823-1867
1
1828-1864
1
1845-1911
1
1850-1950
1
1855-1891
1
1858-1949
1
1862-1915
1
1865-1939
1
1871-1922
1
1882-1941
1
1912-
1
1914-1953
1
1935-
1
1939-2013
1
1949-
1
1952-
1
1965-
1
19th century
1
21st century
1
Fenian Invasions, 1866-1870
1
To 1550
1