Publius Licinius Egnatius Gallienus was Roman emperor with his father Valerian from 253 to 260 and alone from 260 to 268. He ruled during the Crisis of the Third Century that nearly caused the collapse of the empire. He won numerous military victories against usurpers and Germanic tribes, but was unable to prevent the secession of important provinces. His 15-year reign was the longest in half a century.
The 270s decade ran from January 1, 270, to December 31, 279.
The 360s decade ran from January 1, 360, to December 31, 369.
Year 251 (CCLI) was a common year starting on Wednesday of the Julian calendar. At the time, it was known as the Year of the Consulship of Traianus and Etruscus. The denomination 251 for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years.
The 350s decade ran from January 1, 350, to December 31, 359.
The 210s decade ran from January 1, 210, to December 31, 219.
The 230s decade ran from January 1, 230, to December 31, 239.
The 240s decade ran from January 1, 240, to December 31, 249.
The 250s was a decade that ran from January 1, 250, to December 31, 259.
The 260s decade ran from January 1, 260, to December 31, 269.
Year 241 (CCXLI) was a common year starting on Friday of the Julian calendar. At the time, it was known as the Year of the Consulship of Gordianus and Pompeianus by the Romans. The denomination 241 for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years.
Year 259 (CCLIX) was a common year starting on Saturday of the Julian calendar. At the time, it was known as the Year of the Consulship of Aemilianus and Bassus. The denomination 259 for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years.
Year 268 (CCLXVIII) was a leap year starting on Wednesday of the Julian calendar. At the time, it was known as the Year of the Consulship of Paternus and Egnatius. The denomination 268 for this year has been used since the early medieval period when the Anno Domini calendar era became the prevalent method in Europe for naming years.
Year 265 (CCLXV) was a common year starting on Sunday of the Julian calendar. At the time, it was known as the Year of the Consulship of Valerianus and Lucillus. The denomination 265 for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years.
Valerian was Roman emperor from 253 to spring 260 AD. Valerian is known as the first Roman emperor to have been taken captive in battle, captured by the Persian emperor Shapur I after the Battle of Edessa, causing shock and instability throughout the Roman Empire. The unprecedented event and the unknown fate of the captured emperor generated a variety of different reactions and "new narratives about the Roman Empire in diverse contexts".
The Gallic Empire or the Gallic Roman Empire are names used in modern historiography for a breakaway part of the Roman Empire that functioned de facto as a separate state from 260 to 274. It originated during the Crisis of the Third Century, when a series of Roman military leaders and aristocrats declared themselves emperors and took control of Gaul and adjacent provinces without attempting to conquer Italy or otherwise seize the central Roman administrative apparatus.
Marcus Cassianius Latinius Postumus was a Roman commander of Batavian origin, who ruled as emperor of the splinter state of the Roman Empire known to modern historians as the Gallic Empire. The Roman army in Gaul threw off its allegiance to Gallienus around the year 260, and Postumus assumed the title and powers of Emperor in the provinces of Gaul, Germania, Britannia, and Hispania. He ruled for the better part of ten years before he was murdered by his own troops.
Publius Licinius Cornelius Saloninus Valerianus, typically just called Saloninus, was a Roman nobleman who briefly became emperor in 260. The grandson of Valerian I, Saloninus was appointed (subordinate) Caesar in 258 in an attempt to shore up the Licinial line of succession during the Crisis of the Third Century. During his time in power, Saloninus administered the German marches out of Cologne. Nevertheless, Saloninus soon became embroiled in a dispute with future Caesar of the Gallic Empire Postumus over war spoils. In 260, Saloninus' troops acclaimed him Emperor in an unsuccessful bid for political legitimacy; Postumus killed Saloninus shortly thereafter.
The Battle of Edessa took place between the armies of the Roman Empire under the command of Emperor Valerian and the Sasanian Empire under Shahanshah Shapur I, in Edessa in 260. The Roman army was defeated and captured in its entirety by the Iranian forces; for the first time, a Roman emperor was taken prisoner.
Silvanus was a Roman soldier and probably praetorian prefect during the third century who came briefly to the notice of history in the reign of Valerian and his co-Emperor Gallienus. He is generally assumed to have been the commander of the praetorians under Gallienus.
