Era
1910-1921
21
20th century
15
1922-
12
1969-
7
19th century
6
1842-1928
5
1922-1949
5
Easter Rising, 1916
4
1837-1901
3
18th century
3
1901-1910
3
British occupation, 1765-1947
3
Civil War, 1922-1923
3
Colonial period, ca. 1600-1775
3
War of Independence, 1919-1921
3
1751-1830
2
1789-1815
2
1843-1926
2
1845-1916
2
1882-1957
2
1882-1966
2
1882-1975
2
1919-1947
2
Revolution, 1789-1799
2
Revolution, 1789-1815
2
1440-1514
1
1527-1608
1
1560-1619
1
16th century
1
1749-1791
1
1754-1793
1
1779-1853
1
1790-1866
1
1796-1867
1
17th century
1
1805-1869
1
1809-1861
1
1831-1915
1
1846-1928
1
1851-1948
1
1855-1939
1
1856-1918
1
1856-1924
1
1857-1916
1
1863-1945
1
1867-1935
1
1871-1918
1
1871-1922
1
1872-1922
1
1875-1915
1
more ...