The volume accompanies a brief exhibition with panels (texts and images) to present the results of the research and excavations carried out from 2011 to today in the archaeological site 'Antiche Mura' in Jesolo. 'In limine' is a poem by Eugenio Montale (introduces the collection “Ossi di Seppia”). The title, and the poem itself, seemed pertinent to summarize the meaning of the archaeological project on the ancient Equilo, the first results of which are published in this volume. 'In limine' means 'on the threshold': that is, it indicates a crossing point, a border; and, in our case, metaphorically underlines the distinction between past and present, the archaeological place where inert matter becomes narration. Here, at the outset, there is also a precise physical space, that of the 'Antiche Mura' area, also a tangible place of collective memory. A place, yesterday as today, on the edge. If the ancient Equilo had been a settlement on the unstable border between the sea and the lagoon, modern Jesolo, which inherited its name, has left the ruins of its memory to remain outside the inhabited center: at the point where the city becomes countryside, there are the ruins of the ancient cathedral, there remains the reliquary of the community, like a sort of garden 'where a dead tangle of memories sinks' (again Montale). Archaeologists have tried over time to recover those memories and that past, with patience and effort. Thus, the project born a few years ago on the initiative of the Department of Humanities of the Ca 'Foscari University of Venice, constitutes only the last act of a journey that began in the middle of the last century, with the excavations in the area of cathedral and in the nearby site of the church of San Mauro. The contributions published on this occasion tell and summarize the results of the last few years of excavations. The interconnection between the various investigation strategies has allowed us to propose a completely new and surprising historical-settlement reconstruction of the site.