The Anglican Diocese on the Niger is the mother diocese of the Church of Nigeria. It is one of 10 Anglican dioceses in the Anglican Province of the Niger within the Church of Nigeria. The diocese was created in 1864 as the 'Diocese of West African Territories Beyond the British Dominions' or 'Diocese of the Niger' with Bishop Samuel Ajayi Crowther as the bishop. At Crowther's death in 1891, the diocese was merged with the Lagos and Yoruba sections of the Nigerian mission which had been under the Diocese of Sierra Leone and renamed 'the Diocese of Western Equatorial Africa' with Bishop John Sidney Hill as bishop. He was succeeded by Bishop Herbert Tugwell. In 1920 the Diocese of Equatorial West Africa was divided into two: an eastern part and a western part. A part of the Diocese on the Niger was subsequently carved out in 1946 to create the Niger Delta Diocese.