Two historians talk to Ricardo Chica Gelis about events closely related to the history of Cartagena de Indias. With Carolina Aguado Serrano (Spain), an art historian and part of the technical coordination team for exhibitions and publications of the Dirección de Colecciones Reales de Patrimonio Nacional (Spain); she is co-author (alongside Mariela Beltrán García-Echániz) of La última batalla de Blas de Lezo, a comprehensive historical revision of the mariner's story. Jesús Sanjurjo (Spain) will talk about his book Con la sangre de nuestros hermanos. Historia del abolicionismo y del fin del comercio de esclavos en el Imperio español, 1800-1870, in which he sets out the complex history of abolitionist and anti-abolitionist discourses in Spain and the Spanish-speaking Caribbean during the 19th century. The study covers the ideological, political and diplomatic battle that occurred up and down the Atlantic in order to ban the slave trade in the last years of the Spanish Empire.