Hisn al-Tinat seems to have been a de novo Early Islamic foundation, not built atop a
Roman or Byzantine city. That is considered unusual for frontier sites in Cilicia and the western
thughūr. During the Roman period,
Issus was instead located south of Kinet Höyük, near the bridge complex of Kırık Köprü. In the early Islamic period, the settlement moved northward in response to the migration of rivers, expansion of marshes, and other changes in the environment that took place in the
Late Roman era. Excavations point to multiple occupation phases. The earliest (Phase IV) dates from the early Islamic period, in the mid-8th century to the mid-10th century. Remains from this period include substantial fortification walls, domestic buildings, storage areas, and port activity, including timber remains, waterfront deposits, and
amphorae. The site was taken by the Byzantine Empire sometime after 969, during its reconquest of Cilicia and Antioch. The site's next phase (Phase III) dates from the 10th to the 11th century CE. It is a transitional, early Islamic/Middle Byzantine phase, with internal rebuilding and mixed material culture. The latest era (Phases II-I) dates from the 11th to the early 12th century CE. This is a well-defined Middle Byzantine fortified enclosure (ca. 25x25 meters) with towers and buttresses, later destroyed by fire. Smaller findings from the site include Early Islamic
glazed wares,
Abassid-period imports from
Syria,
Iraq and
Egypt, brittleware cooking pots, coins, iron tools, and evidence for fishing, animal husbandry, and timber processing. Today, the site is largely buried beneath alluvial deposits, agricultural fields, and modern industrial installations. == Research history ==