From January 15 to February 12, 1977, more than 15,000 artists, intellectuals and performers from 55 nations worldwide gathered in Lagos, Nigeria, for the Second World Black and African Festival of Arts and Culture, also known as FESTAC’77. Taking place in the heyday of Nigeria’s oil wealth and following the African continent’s potent decade of decolonization, FESTAC’77 was the peak of Pan-Africanist expression. While serving as the photographer for the US contingent of the North American delegation, Brooklyn-based photographer Marilyn Nance made more than 1,500 images throughout the course of the festival—one of the most comprehensive photographic accounts of FESTAC’77. Drawing from Nance’s extensive archive, most of which has never before been published, Last Day in Lagos chronicles the exuberant intensity and sociopolitical significance of this extraordinary event.