- Countries A-Z
Federal Republic of Nigeria
Political Status: Independent member of the Commonwealth since 1960; republic established in 1963; civilian government suspended as the result of military coups in January and July 1966; executive presidential system established under constitution effective October 1, 1979; under military rule following successive coups of December 31, 1983, and August 27, 1985; constitution of Third Republic promulgated May 3, 1989; existing state organs dissolved following military takeover of November 17, 1993; 1979 constitution restored and Provisional Ruling Council established on November 21, 1993; current constitution entered into effect May 29, 1999, with installation of new civilian government.
Area: 356,667 sq. mi. (923,768 sq. km).
Population: 176,703,342 (2014E—UN); 177,155,754 (2014E—U.S. Census).
Major Urban Centers (2006C): ABUJA (776,298), Lagos (7,937,932), Kano (2,163,225), Ibadan (1,338,659), Port Harcourt (1,382,592), Benin ...