Last great pre-Islamic Persian empire.
The Sasanian Empire (224–651 CE) succeeded the Parthians and represented the last pre-Islamic Persian kingdom. Founded by Ardashir I, it centralized power and revived Persian art, architecture, and Zoroastrian religion. The Sasanians built monumental cities such as Ctesiphon and advanced administration, trade, and learning. Rulers like Shapur I defeated the Romans, while Khosrow I Anushirvan led the empire’s golden age of justice, science, and philosophy. The dynasty fell after the Arab conquest, but its cultural legacy profoundly shaped the Islamic and Persian worlds.