Era
20th century
26
1900-1999
12
1945-1992
12
1918-1938
10
1850-1937
9
1846-1929
7
1938-1945
7
19th century
7
1939-1945
6
1968-1989
6
1800-1999
5
1870-1937
5
1798-1876
4
1914-1918
4
1900-2099
3
21st century
3
Intervention, 1968
3
1848-1918
2
1864-1932
2
1870-1924
2
1874-1945
2
1878-1962
2
1885-1978
2
1904-1988
2
1993-
2
Since 1945
2
1415-1480
1
1419 - 1436
1
1419-1436
1
1618 - 1848
1
1618-1848
1
1618-1899
1
1719-1790
1
1791-1861
1
1800-1899
1
1800-1989
1
1818-1905
1
1849-1921
1
1880-1958
1
1882-1951
1
1885-
1
1888-1918
1
1888-1972
1
1889-1972
1
18th century
1
1900 - 1999
1
1900 - 2099
1
1900-
1
1900-1970
1
1907-1977
1
more ...