Era
20th century
745
19th century
253
1880-1964
208
1865-1939
29
17th century
28
18th century
25
1856-1950
24
Early modern and Elizabethan, 1500-1600
24
1882-1941
15
1564-1616
14
16th century
14
1852-1932
11
1910-1921
11
Easter Rising, 1916
9
20th Century
8
Rebellion of 1798
8
14th century
7
1871-1909
7
1667-1745
6
1878-1961
6
1881-1973
6
1852-1933
5
1869-1954
5
1885-1917
5
1922-
5
19th Century
5
1837-1901
4
1841-1919
4
1853-1890
4
1876-1947
4
1812-1870
3
1834-1917
3
1839-1906
3
1868-1916
3
1876-1916
3
1879-1916
3
1882-1958
3
1888-1961
3
1889-1975
3
1892-1969
3
1901-1984
3
1903-1995
3
Civil War, 1922-1923
3
Middle Ages, 600-1500
3
Middle English, 1100-1500
3
Revolution, 1917-1921
3
To 1100
3
To 1172
3
1090 or 91-1153
2
1182-1226
2
more ...