Abstract
This paper underscores the critical need for open data practices in archaeo-historical research, particularly in the face of limited historical data availability, especially in underrepresented regions. Our study was conducted within the framework of the PERAIA project, which introduced an innovative approach by creating an open data database and web application to enhance data accessibility and reusability. This platform offers a comprehensive gazetteer that covers archaeological and heritage sites within the Eastern Mediterranean area (Crete and Marmarica) spanning Late Prehistory and Antiquity. To achieve this, we employed a digital research methodology that integrated legacy data with systematic aerial and satellite imagery analysis. This integration allowed us to identify previously known and unknown sites, enriched with associated (meta)data. Our commitment to open science is embodied in our open data practices. We also make the data accessible through Zenodo, ensuring that such data are available for potential reuse.