Constitution of Nigeria
[5] This diversity contributes to Nigeria being "one of the world's most deeply divided countries" with rampant political corruption.These efforts include civilian and military rule, centrifugal and centralized federalism, presidential and parliamentary systems, and other political institutions.The Richards Constitution recognized the country's diversity by introducing the federal principle with its regional authority.Although realistic in its assessment of the situation in Nigeria, the Richards Constitution intensified regionalism instead of encouraging political unification.[11] The MacPherson Constitution provided for regional autonomy and federal union, creating a central government with a Council of Ministers.However, the regional governments had broad legislative powers that could not be overridden by the newly established 185-seat federal House of Representatives.[16] To avoid the pitfalls of the First Nigerian Republic, the 1979 constitution mandated political parties which were required to register in at least two-thirds of the states.[26] The constitution gives the National Assembly the power to make laws for "peace, order and good government of the Federation".