By 257, Valerian had already recovered Antioch and returned the province of Syria to Roman control but in the following year, the Goths ravaged Asia Minor. Later in 259, he moved to Edessa, but an outbreak of plague killed a critical number of legionaries, weakening the Roman position in Edessa which was then besieged by the Persians. At the beginning of 260, Valerian was defeated in the Battle of Edessa and he arranged a meeting with Shapur to negotiate a peace settlement. The ceasefire was betrayed by Shapur who seized him and held him prisoner for the remainder of his life. Valerian's capture was a humiliating defeat for the Romans
The Sassanid Persian Empire or Sassanian Dynasty (Persian: [unprintable] 6; IPA: [unprintable]) is the name of the last pre-Islamic Iranian empire. It was one of the two main powers in Western Asia for a period of more than 400 years.[1] The Sassanid dynasty was founded by Ardashir I after defeating the last Parthian (Arsacid) king, Artabanus IV (Persian: [unprintable] Ardavan) and ended when the last Sassanid Shahanshah (King of Kings), Yazdegerd III (632651), lost a 14-year struggle to drive out the early Arab Caliphate, the first of the Islamic empires. The Sassanid's empire, which they called Eranshahr ("the Iranian Empire")[2], encompassed all of today's Iran, Iraq, Armenia, the southern Caucasus (including southern Dagestan), southwestern Central Asia, western Afghanistan, parts of Turkey, parts of Syria, some coastal parts of the Arabian Peninsula, Persian Gulf area, and some parts of southwestern Pakistan.
Following the collapse of the Sassanid Empire, after which Zoroastrianism was supplanted by Islam, Zoroastrians increasingly became a persecuted minority, and a number of them chose to emigrate. According to the Qissa-i Sanjan, one group of those refugees landed in what is now Gujarat, India, where they were allowed greater freedom to observe their old customs and to preserve their faith. The descendants of those Zoroastrians, now known as the Parsis, would play a significant role in the development of India. Today there are around 70,000 Parsis in India.
The leader of Captain Ahab's secret whaleboat, Fedallah, in the novel Moby-Dick by Herman Melville is referred to as "the Parsee". There is an emphasis on certain Zoroastrian traditions, especially a respect for fire.