Era
20th century
18
19th century
6
1945-
4
1991-
4
21st century
3
Easter Rising, 1916
3
1172-1603
2
17th century
2
1837-1901
2
18th century
2
1910-1936
2
1933-1945
2
1989-
2
Famine, 1845-1852
2
Quaternary
2
1485-1603
1
1533-1917
1
1603-1714
1
1613-1917
1
1691-
1
16th century
1
1770-1828
1
1789-1815
1
1800-1837
1
1800-1950
1
1809-1891
1
1819-1891
1
1867-1910
1
1870-1914
1
1871-1918
1
1878-1953
1
1879-1916
1
1902-1945
1
1910-1921
1
1914-1945
1
1915-1997
1
1916-2000
1
1918-1933
1
1922-
1
1925-1953
1
1936-1945
1
1939-1975
1
1945-1989
1
1945-1990
1
1955-
1
1958-
1
1974-
1
1974-1981
1
1975-
1
1978-
1
more ...