How can regional history be researched, published, and shared with the public in the digital age? How do scholars balance accessibility, rigor, and sustainability when building long-term digital infrastructures? In this lecture, Dr. Moritz Mähr will present Stadt.Geschichte.Basel (2017–2026), one of the largest public history projects in Switzerland. With ten volumes in print and a digital portal designed to serve both the public and researchers, the project exemplifies the challenges and opportunities of large-scale historical collaboration. Topics will include: Strategies for combining offline and online public history Designing digital portals for multiple audiences Metadata sensitivity and the ethics of historical sources Long-term governance and sustainability of digital infrastructures Students and faculty interested in public history, digital history, archival studies, or interdisciplinary collaboration are especially encouraged to attend.