Ephesus was one of the most important cities in the Roman Empire during the first century AD. Located on the western coast of Asia Minor (modern Turkey) near the mouth of the Cayster River, it served as the capital of the Roman province of Asia and was renowned for its wealth, culture, and religious significance.
The city was a major commercial hub due to its strategic location on trade routes between East and West and its access to a harbor that connected to the Aegean Sea. At its peak, Ephesus had a population of approximately 250,000 people, making it one of the largest cities in the Mediterranean world.