Italy
1 January 1948
Jamaica
6 August 1962
Japan
3 May 1947
Jersey
unwritten; partly statutes, partly common law and practice
Jordan
8 January 1952
Kazakhstan
adopted by national referendum 30 August 1995; first
post-independence constitution was adopted 28 January 1993
Kenya
12 December 1963, amended as a republic 1964; reissued with
amendments 1979, 1983, 1986, 1988, 1991, 1992, 1997, and 2001
Kiribati
12 July 1979
Korea, North
adopted 1948, completely revised 27 December 1972,
revised again in April 1992 and September 1998
Korea, South
17 July 1948