Era
20th century
97
19th century
44
21st century
30
1945-
16
18th century
6
Colonial period, ca. 1600-1775
5
Revolution, 1775-1783
5
1953-
4
17th century
3
1887-1940
3
1760-1860
2
1837-1901
2
1871-1918
2
1933-1945
2
1960-
2
1969-1994
2
1994-
2
Famine, 1845-1852
2
1721-1780
1
1730-1794
1
1759-1851
1
1784-1841
1
1792-1835
1
1795-1883
1
1800-1837
1
1808-1877
1
1817-1825
1
1824-1884
1
1828-1864
1
1829-1906
1
1830-1891
1
1831-1915
1
1836-1851
1
1853-1857
1
1870-
1
1885-1924
1
1887-1954
1
1910-2001
1
1912-1998
1
1916-1990
1
1917-1936
1
1917-1948
1
1918-1933
1
1925-
1
1926-1984
1
1928-1967
1
1929-1968
1
1939-
1
1941-
1
1945-1989
1
more ...