Administrative divisions:

36 states and 1 territory*; Abia, Adamawa, Akwa Ibom, Anambra,
Bauchi, Bayelsa, Benue, Borno, Cross River, Delta, Ebonyi, Edo,
Ekiti, Enugu, Federal Capital Territory*, Gombe, Imo, Jigawa,
Kaduna, Kano, Katsina, Kebbi, Kogi, Kwara, Lagos, Nassarawa, Niger,
Ogun, Ondo, Osun, Oyo, Plateau, Rivers, Sokoto, Taraba, Yobe, Zamfara

Independence:

1 October 1960 (from UK)

National holiday:

Independence Day (National Day), 1 October (1960)

Constitution:

new constitution adopted 5 May 1999; effective 29 May 1999

Legal system:

based on English common law, Islamic law (in 12 northern states), and traditional law; accepts compulsory ICJ jurisdiction with reservations