“Classical Studies”, or the study of Classical Antiquity, is an ample category covering several disciplines: philology, history, archaeology. They all have to work with written sources at some point, but they rarely do it in a coordinated way. More often than not, material remains or topographical studies don´t play a role in philological interpretations, while archaeologists and historians don´t see the need for a philological reading of texts written by ancient authors, considering them mere tools to confirm their own conclusions or even deceptions to be discredited. This lack of organization is, as we will argue here, at the root of continued misconceptions like those which surround the identity and location of the island of Erytheia, which can be solved by an interdisciplinary approach