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.
Pope Sixtus II, also written as Pope Xystus II, was bishop of Rome from 31 August 257 until his death on 6 August 258. He was martyred along with seven deacons, including Lawrence of Rome, during the persecution of Christians by the Emperor Valerian.
The 200s decade ran from January 1, 200, to December 31, 209.
The 120s was a decade that ran from January 1, AD 120, to December 31, AD 129.
The 310s decade ran from January 1, 310, to December 31, 319.
The 430s decade ran from January 1, 430, to December 31, 439.
Year 257 (CCLVII) was a common year starting on Thursday of the Julian calendar. At the time, it was known as the Year of the Consulship of Valerianus and Gallienus. The denomination 257 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 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.
Cyprian was a bishop of Carthage and an early Christian writer of Berber descent, many of whose Latin works are extant. He is recognized as a saint in the Western and Eastern churches.
Year 256 (CCLVI) was a leap year starting on Tuesday of the Julian calendar. At the time, it was known as the Year of the Consulship of Claudius and Glabrio. The denomination 256 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 260 (CCLX) was a leap year starting on Sunday of the Julian calendar. At the time, it was known as the Year of the Consulship of Saecularis and Donatus. The denomination 260 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.
Pope Dionysius was the bishop of Rome from 22 July 259 to his death on 26 December 268. His task was to reorganize the Roman church, after the persecutions of Emperor Valerian I and the edict of toleration by his successor Gallienus. He also helped rebuild the churches of Cappadocia, devastated by the marauding Goths.
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".
Gaius Messius Quintus Trajanus Decius, sometimes translated as Trajan Decius, was Roman emperor from 249 to 251.
Saint Lawrence or Laurence was one of the seven deacons of the city of Rome under Pope Sixtus II who were martyred in the persecution of the Christians that the Roman Emperor Valerian ordered in 258.
Cao Mao, courtesy name Yanshi, was the fourth emperor of the state of Cao Wei during the Three Kingdoms period of China. He was a grandson of Cao Pi, the first emperor of Wei. Described as intelligent and studious, Cao Mao made repeated attempts to seize back state power from the regent Sima Zhao but failed. He was killed in an abortive coup d'état against Sima Zhao.
Legio II Parthica was a legion of the Imperial Roman army founded in AD 197 by the emperor Septimius Severus, for his campaign against the Parthian Empire, hence the cognomenParthica. The legion was still active in the beginning of the 5th century. The legion's symbol was a centaur.
Sep. 15 - Eastern Orthodox liturgical calendar - Sep. 17
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.
