
East Central State is a former administrative division of Nigeria. It was created on 27 May 1967 from parts of the Eastern Region and existed until 3 February 1976, when it was divided into two states - Anambra and Imo. The area now comprises five states; Anambra, Imo, Enugu, Ebonyi and Abia. The city of Enugu was the capital of East Central State.

Gongola State is a former administrative division of Nigeria. It was created on 3 February 1976 from Adamawa and Sardauna Provinces of North State, together with the Wukari Division of the then Benue-Plateau State; it existed until 27 August 1991, when it was divided into two states - Adamawa and Taraba. The city of Yola was the capital of Gongola State.

The Niger Coast Protectorate was a British protectorate in the Oil Rivers area of present-day Nigeria, originally established as the Oil Rivers Protectorate in 1884 and confirmed at the Berlin Conference the following year. It was renamed on 12 May 1893, and merged with the chartered territories of the Royal Niger Company on 1 January 1900 to form the Southern Nigeria Protectorate.

North-Eastern State is a former administrative division of Nigeria. It was created on 27 May 1967 from parts of the Northern Region. Its capital was the city of Maiduguri. The North-Eastern is also full of agriculture and food.

Northern Nigeria was a British protectorate which lasted from 1900 until 1914 and covered the northern part of what is now Nigeria.

The Provinces of Nigeria are a former administrative division in Nigeria, which were in use in Colonial Nigeria and shortly after independence; from 1900 to 1967. They were altered many times through their history. They were divided into divisions, some of these were further subdivided into native authorities. Northern Nigeria and Southern Nigeria were also sometimes known as the Northern Provinces or Southern Provinces respectively. Currently, Nigeria is a federation of 36 states.

Southern Nigeria was a British protectorate in the coastal areas of modern-day Nigeria formed in 1900 from the union of the Niger Coast Protectorate with territories chartered by the Royal Niger Company below Lokoja on the Niger River.