Sweden
1 January 1975
Switzerland
revision of Constitution of 1874 approved by the Federal
Parliament 18 December 1998; adopted by referendum 18 April 1999;
officially entered into force 1 January 2000
Syria
13 March 1973
Taiwan
25 December 1946, amended in 1992, 1994, 1997, 1999, and 2000
Tajikistan
6 November 1994
Tanzania
25 April 1977; major revisions October 1984
Thailand
new constitution signed by King PHUMIPHON on 11 October 1997
Togo
multiparty draft constitution approved by High Council of the
Republic 1 July 1992; adopted by public referendum 27 September 1992
Tokelau
administered under the Tokelau Islands Act of 1948, as
amended in 1970
Tonga
4 November 1875, revised 1 January 1967