Dr Joaquim Alves Gaspar is a man of the sea. After many years in the Portuguese Navy, he gave up plans to become an admiral in favour of pursuing a PhD in the History of Cartography. This second career led him to receive an ERC Starting Grant, the first awarded in this budding discipline. With his highly multidisciplinary team (he likes to say that, to work with him, one must be a mathematician fluent in Latin), and the experience obtained as a navigator and navigational instructor, Dr Gaspar hopes to understand how and when the first nautical charts were created. The MEDEA-CHART team is the best place in Portugal, and probably in the world, to study the history of nautical cartography, hoping that this work will provide the domain with its rightful recognition within world history.