Valyren kneeling in front of Shapur

Roman Emperor Valerian kneeling at the feet of Shapur I, the powerful Sassanid king

During the time of Shapur I ( 239 to 270 AD ) Sassanid king, three Roman emperors attacked Iran . One was young Gardianus who was killed in 242 AD . The other was Philip the Arab, who was forced to surrender to Shapur and accepted that the annual…