Pelagios is a project that links ancient places mentioned in texts, inscriptions, archaeological finds, and museum objects through annotations. It involves over 45 partners from 10 countries annotating over 1 million references. The goal is to enable discovery and enrich context by connecting data through common references rather than imposing a common schema. Pelagios develops tools to make annotation easy and provides services like a search API and downloadable geospatial data to explore the links between sources. The project aims to support digital scholarship by building an ecosystem that interconnects people, places, times and more across various projects and resources.