Igboland Biafra on May 30, 1967. Nigerian General Emeka Odumegwu-Ojukwu on this day made a declaration of independence of Biafra from Nigeria and became the head of state of the new republic. The Nigerian Civil War (or the "Nigerian-Biafran War") lasted from 6 July 1967 until 15 January 1970, after which Biafra once again became part of Nigeria. The Republic of Biafra was defeated after three years of war by the federal government of Nigeria from 1967 to 1970 with military support from the United Kingdom (strategy and ammunition), Soviet Union (ammunition), the United Arab Republic (air force), as well as
Bight of Biafra Guinea (Bioko Island and Rio Muni), and Gabon (northern coast). The Bight of Biafra accounted for 13% (1.6 million) of the total number of slaves exported from the Western African coast. The Bight of Benin to the west accounted for 17% while Central Africa to the south accounted for 48%. By the middle of the eighteenth century, Bonny had emerged as the major slave trading port on the Bight of Biafra outpacing the earlier dominant slave ports at Elem Kalabari (also known then as New Calabar) and Old Calabar. These 3 ports together accounted for over 90% of the slave