Era
20th century
56
19th century
34
18th century
11
21st century
8
1899-1977
5
1828-1910
4
Famine, 1845-1852
4
1809-1882
3
1821-1881
3
1837-1901
3
1854-1900
3
1896-1980
3
1960-
3
Easter Rising, 1916
3
1172-1603
2
1689-1801
2
1771-1832
2
1910-1921
2
1945-
2
1971-
2
1991-
2
Quaternary
2
to 332 BC
2
1430?-1506?
1
1506-1582
1
1613-1689
1
16th century
1
1711-1765
1
1717-1777
1
1729-1796
1
1750-1774
1
1751-1816
1
1770-1828
1
1770-1835
1
1779-1839
1
1799-1837
1
17th century
1
1800-1837
1
1800-1950
1
1801-1917
1
1810-1891
1
1813-1883
1
1818-1848
1
1818-1883
1
1840-1893
1
1840-1928
1
1846-1906
1
1853-1900
1
1854-1926
1
1857-1919
1
more ...