Era
1979-1997
8
1945-
6
1979-
4
20th century
3
18th century
2
1945-1964
2
1964-1979
2
19th century
2
20th century. --
2
1689-1702
1
1822-1875
1
1853?-1931
1
1863-1945
1
1881-1951
1
1901-1910
1
1913-
1
1914-1923
1
1914-1945
1
1939-1945 --
1
1942-1955
1
1942-1955 --
1
1945 --
1
1964
1
1964-
1
1979-1987 --
1
1981-1995
1
1997-
1
19th century --
1
Congresses --
1
dictionaries
1
directories
1
history
1
rules and practice
1