This publication is the first of four volumes that will present the final results of the 2013-2015 seasons of MTAP, a Greek-American synergasia project. This first volume presents the history and finds from the archaeological site often referred to as "Ancient Stryme," which ancient sources identified as an emporion (trading post) and polis settled by Thasians.The book provides a new chronology for the site, including its 4th-century BCE reoccupation after destruction possibly associated with Philip of Macedon, and traces diachronic change through the Early Byzantine period.A significant discovery is a complete Classical house at the site, one of the few from Aegean Thrace, which features informative architecture and domestic assemblages.Intensive urban survey clarifies the city's 4th-century walls and harbours and expands our understanding of the scale and function of coastal settlements.In the surrounding chora, the area's first geomorphological study evaluates landscape use and the changing coastline.Contributions from over 20 authors discuss the excavation, survey, geomorphology, and finds from MTAP, shedding new light on Greek-Thracian interaction, settlement, trade, and the environment from prehistory through the Early Byzantine period in an understudied region of the Aegean.