Hannah Marcus is Professor of the History of Science in the Department of the History of Science and the Faculty Director of the Collection of Historical Scientific Instruments at Harvard University. Her research focuses on the scientific culture of early modern Europe between 1400 and 1700.
Marcus’s first book, Forbidden Knowledge: Medicine, Science, and Censorship in Early Modern Italy (University of Chicago Press, 2020), explores the censorship of medical books from their proliferation in print through the prohibitions placed on many of these texts during the Counter-Reformation. This account explains how and why the books prohibited by the Catholic Church in Italy ended up back on the shelves of private and public Italian libraries in the seventeenth century. It was awarded the Morris D. Forkosch Prize for the best first book in intellectual history by the Journal of the History of Ideas and the Helen and Howard R. Marraro Prize in Italian History by the American Catholic Historical Association.
Marcus is also the translator of the sixteenth-century apothecary Camilla Erculiani’s Letters on Natural Philosophy (1584). Erculiani’s text presents a radical, materialist explanation for the Biblical flood—a theory that she had to defend against the Inquisition’s charges of heresy. The translation includes accompanying texts about Erculiani’s legal defense and was recognized with an Honorable Mention for the Scholarly Edition in Translation Award by the Society for the Study of Early Modern Women and Gender.
Marcus’s second book, Methuselah’s Children: The Renaissance Discovery of Old Age, is a study of ideas about longevity and experiences of advanced old age in a period when the average life expectancy was 35.
Marcus engages in digital humanities research through her work on Galileo, which she has published in collaboration with Paula Findlen (Stanford) and Crystal Hall (Bowdoin). With Findlen, she is writing a book about Galileo’s correspondence called Galileo’s Letters: Experiments in Friendship, which grows out of their collaboration on The Galileo Correspondence Project. With her colleague Allan Brandt, Marcus directs the new online resource History of Contagion in Harvard Library Collections, which solicits and publishes short commentaries on fully digitized primary source documents related to the history of contagious disease.
Marcus’s public writing has appeared in The New York Times, The Boston Globe, and Scientific American, among other venues.
Marcus earned her BA at the University of Pennsylvania and her PhD at Stanford University in 2016. At Harvard, she teaches courses on the changes in scientific ideas and practice between the medieval and early modern periods, especially focusing on the early history of science, medicine, and the body, communication technologies, and the relationship between faith and science. She supervises graduate students working on questions related to science in premodernity. Marcus’s undergraduate teaching was recognized with the Roslyn Abramson Award, for “excellence and sensitivity in teaching undergraduates” and her mentorship has been recognized by the Harvard Graduate Student Council with the Everett Mendelsohn Excellence in Mentoring Award.
