Answer:
The current constitution was enacted on 29 May 1999, inaugurating the Nigerian Fourth Republic.
Nigeria's first constitution as a sovereign state was enacted by a British order in council so as to come into force immediately upon independence, on 1 October 1960. Under this constitution Nigeria retained Queen Elizabeth II as titular head of state.
the types constitution in Nigeria
Contents
1.1 Colonial era (1914–1960)
1.2 Constitutional independence (1960)
1.3 1963 constitution (First Republic)
1.4 1979 constitution (Second Republic)
1.5 1993 constitution (Third Republic)
1.6 1999 constitutions (Fourth Republic)
Step-by-step explanation: