The Great Arch of Ctesiphon Rises over the Sasanian Capital

Near the modern town of Salman Pak in central Iraq stands Taq Kasra, the monumental arched hall that served as the facade of the imperial Sasanian palace at Ctesiphon. For roughly nine centuries, spanning from the second century BC to the seventh century AD, Ctesiphon was the premier capital for the Parthian and Sasanian dynasties. Sasanian monarchs kept their seat of government at this Mesopotamian hub partly because of its strategic proximity to the Roman frontier, where geopolitical rivals could be closely monitored and confronted. Today, the massive brick archway survives as the only visible above-ground structure left from the ancient metropolitan center.

The precise chronology of the monument remains a subject of ongoing historical discussion. Some scholars date its inception to the third century during the reign of Shapur I, who governed the Sasanian realm between 242 and 272. Other historians argue that construction commenced much later, specifically around 540 under Khosrow I following his military expedition against the Byzantine Empire. Regardless of which monarch commissioned the work, the finished complex functioned as the central reception area and audience hall of the dynasty, presenting an imposing display of sovereignty to visiting dignitaries and subjects alike.