Era
21st century
9
21st century --
8
20th century --
7
19th century
3
1979-1991
2
1991-
2
1775-1783
1
1832 - -1888
1
1885-1977
1
1895-1969
1
18th century --
1
1907-1964
1
1908-1986
1
1909-
1
1921-1910
1
1933-1945
1
1939-1945 --
1
1941
1
1946-
1
1947-
1
1949
1
1955-
1
1962
1
1969-
1
1976-
1
1979
1
19th century --
1
2000-
1
2001-
1
20th century
1
21 century --
1
21th century --
1
9th amendment
1
Renaissance,1450-1600 --
1