This letter from Abdias do Nascimento to Manuel Zapata Olivella confirms the dates and location for the third Congreso de la Cultura Negra de las Américas (1982, São Paulo, Brazil). For related documents, consult Abdias Nascimento’s archival collection, housed at the Afro-Brazilian Studies and Research Institute (IPEAFRO), Rio de Janeiro, Brazil http://ipeafro.org.br/home/br/acervo-digital pesquisa@ipeafro.org.br
From: Nascimento, Abdias do, 1914-2011