We know that in the early Sasanian period, the empire showed a great interest in establishing ports on the coast of the Persian Gulf. In the Karnamag of Ardashir Papagan (Book of Deeds of Ardashir son of Papak), one of these ports is mentioned, and it is called "Bōxt-Artaxšīr", which is modern-day Bushehr. This port was important for the Sasanians because it linked Kazerun to center of Persis, modern-day Shiraz. There were other ports on the Iranian side of the Persian Gulf in the Sassanid period, like Sirāf, Hormuz, Kujaran Artaxšīr, etc. According to Ammianus Marcellinus “all along the coast [of the Persian Gulf] is a throng of cities and villages, and many ships sail to and from.”
