Ireland:
29 December 1937; adopted 1 July 1937 by plebiscite
Israel:
no formal constitution; some of the functions of a
constitution are filled by the Declaration of Establishment (1948),
the Basic Laws of the parliament (Knesset), and the Israeli
citizenship law
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, and 1997
Kiribati:
12 July 1979