Nigeria became a federation of four regions in? by Sunday | Jul 16 | Government WAEC | 0 comments A. 1954 B. 1960 C. 1963 D. 1967 E. 1975 Correct Answer: Option C – 1963 Users Also Read These:Who re-organised the Nigeria's four regions into…The central legislature of Nigeria became bicameral in?Nigeria became a federation of thirty-six state…Nigeria became a front line state in the South…Nigeria became a federation of 19 state in?