Approaches to media such as commentaries, palimpsests, and marginalia during the Middle Ages anticipated the forms and practices of our own digital era. In highlighting these connections among the so-called dark, modern, and digital ages, Old Media and the Medieval Concept revises traditional historical narratives as it proposes new ways to understand the technologies that bind past and present. The authors investigate a variety of subjects, including global media ecologies, media historiography, the long history of digital computation, and the pedagogical stakes of our research. Ultimately, this ambitious collection brings digital humanities, media studies, and medieval studies into fresh conversation about the media ecologies that shape our world.