The Constitution of Nigeria was promulgated in 1999 and reviewed in 2023. The Constitution contains 320 articles addressing a large number of issues as the protection of fundamental rights and freedoms, the fundamental principles of the state and institutional arrangements (see more below).
The Constitution of Benin was adopted in 1990 and promulgated by Law No 90-32. The Constitution consists of 160 articles and covers a wide array of areas ranging from state principles, values, rights and obligations of the people, division of powers within the state, etc.