About: Colonial Nigeria

Colonial Nigeria was ruled by the British Empire from the mid-nineteenth century until 1960 when Nigeria achieved independence. British influence in the region began with the prohibition of slave trade to British subjects in 1807. Britain annexed Lagos in 1861 and established the Oil River Protectorate in 1884. British influence in the Niger area increased gradually over the 19th century, but Britain did not effectively occupy the area until 1885. Other European powers acknowledged Britain's dominance over the area in the 1885 Berlin Conference.