The strategic location of the city of Bushehr has been the main reason for the establishment of the port of Bushehr. During the 1st and 2nd Millennium BCE, the Peninsula of Bushehr was a thriving and flourishing seat of civilization called "Rey Shahr". Many relics have been found in this regard related to the Elamite era and the civilization of Shoush (Susa). These structures of "Rey Shahr" are said to be related to Ardeshir of Sassanid dynasty and "Rey Shahr" was formerly known by the name of Ram Ardeshir. Thereby through the passage of time came to be called Rey Shahr and thence Bushehr.