 This interest has naturally led to questions about the history of the notion. Earlier accounts, following Brentano, looked to late medieval discussions in Latin and then to their roots in earlier Arabic philosophy. But at that point, it was claimed, the trail peters out – nothing in Greek or Roman philosophy, allegedly, corresponds. This narrative, as one might suspect, rests on questionable assumptions. Once the investigation is properly framed, it is clear that philosophical interest in intentionality can be traced all the way back to the origins of Western philosophy. Intentionality is recognized as raising serious puzzles already in the early- to mid-fifth century bce, arguably first by Parmenides, but then indisputably by sophists responding to him, including Gorgias and Protagoras. The first extensive discussions are in Plato, who explicitly thematizes the difficulties in several dialogues and considers various solutions. Later philosophers develop other solutions, which include appeals to internal representations (Aristotle), or to nonexistent objects of thought (the first Stoics, Zeno and Cleanthes), and propositions and other semantic entities (other Stoics, beginning with Chrysippus). Even the terminology of intentionality can be traced back, through Augustine, to Greek origins, namely in the Stoic theory of vision.