The Cartography of Contagion: Spatial Epistemologies of Epidemics in Early Modern Europe
Cornelius H. van der Meer1, Beatrix L. Dupont2
1Department of History of Science, Leiden University, The Netherlands
2Institute for Historical Cartography and Medicine, KU Leuven, Belgium
Abstract
The visualization and spatial representation of infectious disease outbreaks underwent a profound transformation during the seventeenth and eighteenth centuries, as physicians, municipal authorities, and early epidemiologists sought to map the invisible vectors of epidemic contagion. Long before the advent of modern GIS technology and Snowian dot-density maps, early modern medical cartography deployed chorographic surveys, civic quarantine borders, and topographic miasmatic diagrams to make pestilence legible to the state. This paper examines the historical epistemology of epidemic mapping across urban European centers during major plague and typhus visitations. We analyze how civic boards of health utilized visual cartography not merely as descriptive records of mortality, but as prescriptive instruments of biopolitical intervention and spatial containment. By examining municipal archives, plague tracts, and rare illustrated treatises from Venice, London, and Amsterdam, we trace how cartographic practices mediated between humoral theories of environmental corruption and emergent proto-bacteriological localization. We argue that early modern epidemic maps functioned as ideological artifacts that reinforced social stratification by framing impoverished districts as geographical foci of moral and physical infection. Furthermore, this study explores the epistemological tensions between qualitative narrative descriptions of contagion and abstract quantitative cartographic projection. Ultimately, we demonstrate how early modern spatial representations laid crucial conceptual foundations for modern public health geography and spatial epidemiology, proving that the cartographic gaze was instrumental in constructing disease as a bounded, manageable spatial phenomenon.