Why was Corinth called a double seaport?
Corinth was called a double seaport because it sat on an isthmus jutting into the Mediterranean Sea, giving it two seaports—one on the east handling eastern Mediterranean trade and one on the west serving trade to Rome, Spain, and the western Mediterranean.
Les explains that Corinth was a double seaport because it sat on an isthmus that jutted out into the Mediterranean Sea, making it really two seaports. The eastern port took care of the eastern Mediterranean trade, while the western side took care of trade to Rome, Spain, and the other end of the Mediterranean. This location made Corinth a city rampant with commerce, with sailors from all parts of the world coming into it. It was a city of probably 30,000 to 40,000 people. Les also notes it was rampant with pagan worship, including a great temple to one of the Greek goddesses that sat above a promenade above the city.