The origin of the initial African constitutions is easy to establish. While the former British territories “received” their Westminster-type constitutions negotiated during the Lancaster House conferences, the former French territories, except Guinea, became independent under constitutions drawing heavily upon the constitution of the Fifth French Republic, of which they were virtual copies. Among the countries formerly under Belgian rule, the Congo (Zaïre) was the only one attaining independence with a constitution, the Loi fondamentale of 1960 which was an Act of the Belgian Parliament.
Therefore, initially the degree of homogeneity was fairly large; there were basically three types of constitutions and the deviation from these models was limited. Admittedly subject to adaptations all the Westminster constitutions were similar, and in fact to some extent they still are; thus in its essential features the 1980 constitution of Zimbabwe draws from the same stock as its predecessors of the early 1960s. The first constitutions of the former French territories were, likewise, very similar, inspired as they were by the French constitution of 1958. The Loi fondamentale of the Congo was strongly influenced by the Belgian constitution, and so was the autochthonous constitution of Burundi which was promulgated a few months after independence in 1962.
Many constitutions have since succeeded these initial texts: between 1960 and 1985 there have been 43 constitutions in the 18 French-speaking countries under consideration, i.e. an average of 2·4 constitutions per country. This flow has led to a considerable diversification of constitutional types.