Era
20th century
332
1910-1921
162
19th century
102
1864-1916
78
1922-
74
21st century
60
1856-1918
43
1837-1901
40
1901-1910
33
1922-1949
31
Civil War, 1922-1923
29
1900-1970
25
1970-1980
23
18th century
21
1875-1915
18
1876-
18
1882-1941
18
17th century
16
1842-1928
16
16th century
14
War of Independence, 1919-1921
14
1265-1321
12
1879-1916
11
1862-1930,
10
Easter Rising, 1916
10
1787-1824,
8
1865-1939
8
1935-
8
1953-
8
1863-1913
7
1874-1948
7
1877-1954
7
1880-1965
6
1890-1922
6
1970
6
1742-1823
5
1756-1820
5
1775-1847
5
1847-1929
5
1848-1929
5
1852-1928
5
1856-1950
5
1872-1949
5
1876-1958
5
1878-1916
5
1889-1931
5
21st Century
5
To 1500
5
1757-1824
4
1812-1870
4
more ...