🏛️ Nicomedia-Prusias ad Hypium
Ruins of a Roman-era city in northwestern Anatolia
📌 Fast Facts
- Located in Izmit, Kocaeli Province, northwestern Türkiye
- Founded as Nicomedia in the 3rd century BCE; renamed and restructured under Roman rule
- Served as a major port and administrative center for the eastern Roman Empire
- Substantial ruins remain scattered across modern Izmit, largely unexcavated
Nicomedia was established by Nicomedes I of Bithynia around 264 BCE and became one of the most significant cities in northwestern Anatolia. Under Roman control from 74 BCE onward, it served as the capital of the province of Bithynia and Pontus, and later as a provincial capital under Byzantine rule. The site's harbor on the Sea of Marmara made it a crucial trade and military hub for millennia ...