Which of these constitutions recognized local government as a third tier of government in Nigeria?

The 1979 Constitution recognized local government as a third tier of government in Nigeria. This means that in addition to the federal and state governments, local governments were also recognized as a separate level of government with the power to make laws and govern their own affairs. Prior to this, the 1960 and 1963 Constitutions recognized only two tiers of government, the federal and regional governments. The 1946 Constitution, on the other hand, was the colonial constitution that preceded Nigeria's independence and did not recognize any tiers of government. The recognition of local government as a third tier of government in the 1979 Constitution was aimed at ensuring that power was devolved to the grassroots level and that local communities were able to govern themselves effectively. This recognition has since been continued in subsequent constitutions, including the current 1999 Constitution.