The Hunterian Museum at the Royal College of Surgeons holds the human and comparative anatomy collections of the surgeon John Hunter (1728-1793). The Exhibiting Difference project was the Hunterian Museum’s contribution to the bicentenary, exploring the history of the transatlantic slave trade through the history of medicine and the experiences of those who lived on the margins of society. Exhibiting Difference focused on the hidden histories of Black Africans living with skin pigmentation conditions in the 18th and 19th centuries, and thus explored issues of identity, self-image and cultural distinctiveness. Curated by Temi Odumosu, the exhibition ‘A Visible Difference: skin, race and identity 1720-1820’ was opened at the Hunterian Museum, featuring portraits of Black African slave children, Mary Sabina and George Alexander Gratton, who both had the skin pigmentation condition piebaldism. The museum also worked with over 200 secondary school students and four professional artists to create a display of sculpture, painting, collage, photography, film and sound recording reflecting the themes of the project. Learning resources were produced to support citizenship education.