Era
20th century
26
1900-1999
12
1931-1939
5
1946-1970
5
1959-1990
4
1800-1899
3
1886-1957
3
19th century
3
Since 1900
3
1735-1826
2
1744-1818
2
1775-1783
2
1775-1809
2
1783-1809
2
1810-1821
2
1877-1949
2
1910-1969
2
1917-
2
1939-1975
2
1959-
2
1970-1973
2
1980-
2
Republic, 1931-1939
2
Revolution, 1775-1783
2
To 1810
2
-1541
1
1417 - 1707
1
1417-1605
1
16th century
1
1781-1846
1
1788-1836
1
1811-1869
1
1815-1861
1
1821-1861
1
1821-1867
1
1833-1895
1
1838-1944
1
1861-1867
1
1864-1949
1
1876 - 1999
1
1876-1950
1
1882-1945
1
1883-1960
1
1886-1931
1
1892-1975
1
1895-1934
1
1895-1979
1
1900 - 1999
1
1902-1974
1
1902-1984
1
more ...