This paper describes the Perseus Digital Library as, in part, a response to limitations of what is now a print culture that is rapidly receding from contemporary consciousness and, at the same time, as an attempt to fashion an infrastructure for the study of the past that can support a shared cultural heritage that extends beyond Europe and is global in scope. But if Greco-Roman culture cannot by itself represent the background of an international twenty-first century culture, this field, at the same time, offers challenges in its scale and complexity that allow us to explore the possibility of digital libraries. Greco-Roman studies is in a position to begin creating a completely transparent intellectual ecosystem, with a critical mass of its primary data available under an open license and with new forms of reading support that make sources in ancient and modern languages accessible to a global audience. In this model, traditional libraries play the role of archives: physically constrained spaces to which a handful of specialists can have access. If non-specialists draw problematic conclusions because the underlying sources are not publicly available and as well-documented as possible, the responsibility lies with the specialists who have not yet created the open, digital libraries upon which the intellectual life of humanity must depend. Greco-Roman Studies can play a major role in modeling such libraries. Perseus seeks to contribute to that transformation.
