Barbados
30 November 1966
Belarus
15 March 1994; revised by national referendum of 24 November
1996 giving the presidency greatly expanded powers and became
effective 27 November 1996; revised again 17 October 2004 removing
presidential term limits
Belgium
7 February 1831; amended many times; revised 14 July 1993 to
create a federal state
Belize
21 September 1981
Benin
adopted by referendum 2 December 1990
Bermuda
8 June 1968; amended 1989 and 2003
Bhutan
ratified 18 July 2008
Bolivia
2 February 1967; revised in August 1994; voters approved a
new constitution on 25 January 2009
Bosnia and Herzegovina
the Dayton Peace Accords, signed 14 December
1995 in Paris, included a new constitution now in force; note - each
of the entities also has its own constitution
Botswana
March 1965; effective 30 September 1966