ISB ~ Acts 19 v1

Ephesus:The most distinguished city in the Roman province of Asia (southwest Turkey). As a cultural, commercial, and religious center, it drew tourists and entrepreneurs from all over the Mediterranean, and by NT times it was hailed the fourth largest city in the Roman Empire.

Ephesus was also the guardian of one of the seven wonders of the ancient world:the temple of Artemis (19:24).