On a Sunday morning in 1805, churchgoers in Santa Fe Bogotá learned of a marvelous new discovery — a vaccine that promised to save them from disease. Vaccination was ostensibly both free and voluntary, requiring the consent of patients or parents throughout the Spanish Empire — yet the vaccine was incubated and conserved for the public through the bodies of young children, often orphaned or enslaved, who were not afforded the choice to consent. This talk by John Carter Brown Library Fellow Farren Yero of Duke University will discuss the establishment of the smallpox vaccine within the Iberian Atlantic world, and how it fostered a new but fractured culture of medical consent. MacMillan Reading Room, John Carter Brown Library, 94 George Street.