Diocletian, nicknamed Iovius, was Roman emperor from 284 to 305. Born to a family of low status in the Roman Province of Dalmatia, and originally named Diocles, Diocletian rose through the ranks of the military early in his career, eventually becoming a cavalry commander for the army of Emperor Carus. After the deaths of Carus and his son Numerian on campaign in Persia, Diocletian was proclaimed emperor by the troops. The title was also claimed by Carus's surviving son, Carinus, but Diocletian defeated him in the Battle of the Margus.
The Tetrarchy was the system instituted by Roman Emperor Diocletian in 293 to govern the ancient Roman Empire by dividing it between two senior emperors, the augusti, and their juniors and designated successors, the caesares. This marked the end of the Crisis of the Third Century.
Year 284 (CCLXXXIV) was a leap year starting on Tuesday of the Julian calendar. At the time, it was known as the Year of the Consulship of Carinus and Numerianus. The denomination 284 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 290s decade ran from January 1, 290, to December 31, 299.
The 280's decade ran from January 1, 280, to December 31, 289.
Year 299 (CCXCIX) was a common year starting on Sunday of the Julian calendar. In the Roman Empire, it was known as the Year of the Consulship of Diocletian and Maximian. The denomination 299 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 293 (CCXCIII) was a common year starting on Sunday of the Julian calendar. In the Roman Empire, it was known as the Year of the Consulship of Diocletian and Maximian. The denomination 293 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 283 (CCLXXXIII) was a common year starting on Monday of the Julian calendar. At the time, it was known as the Year of the Consulship of Carus and Carinus. The denomination 283 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.
Flavius Valerius Constantius "Chlorus", also called Constantius I, was a Roman emperor as one of the four original members of the Tetrarchy established by Diocletian in 293. He was a junior-ranking emperor (caesar) from 293 to 305, and senior emperor (Augustus) from 305 to 306. Constantius was also father of Constantine the Great, the first Christian emperor of Rome. The nickname Chlorus was first popularized by Byzantine-era historians and not used during the emperor's lifetime.
Maximian, nicknamed Herculius, was Roman emperor from 286 to 305. He was Caesar from 285 to 286, then Augustus from 286 to 305. He shared the latter title with his co-emperor and superior, Diocletian, whose political brain complemented Maximian's military brawn. Maximian established his residence at Trier but spent most of his time on campaign. In late 285, he suppressed rebels in Gaul known as the Bagaudae. From 285 to 288, he fought against Germanic tribes along the Rhine frontier. Together with Diocletian, he launched a scorched earth campaign deep into Alamannic territory in 288, refortifying the frontier.
Marcus Aurelius Valerius Maxentius was a Roman emperor, who reigned from 306 until his death in 312. Despite ruling in Italy and North Africa, and having the recognition of the Senate in Rome, he was not recognized as a legitimate emperor by his fellow emperors.
Marcus Aurelius Carinus was Roman emperor from 283 to 285. The elder son of emperor Carus, he was first appointed Caesar and in the beginning of 283 co-emperor of the western portion of the empire by his father. Official accounts of his character and career, which portray him as debauched and incapable, have been filtered through the propaganda of his successful opponent, Diocletian.
The Battle of the Margus or Battle of Margum was fought in July 285 for control of the Roman Empire between the armies of Diocletian and Carinus in the valley of the Margus River in Moesia, probably near the settlement of Margum. The battle proved to be the tipping point that led to the eventual resolution of the Crisis of the Third Century and the return of stability to the Empire.
Marcus Aurelius Sabinus Julianus, known in English as Julian of Pannonia was a Roman usurper against Emperor Carinus or Maximian. It is possible that up to four usurpers with a similar name rebelled in a timeframe of a decade, but at least one of them is known by numismatic evidence.
Amnius Anicius Julianus was a politician of the Roman Empire.
The history of the Roman Empire covers the history of ancient Rome from the fall of the Roman Republic in 27 BC until the abdication of Romulus Augustulus in AD 476 in the West, and the Fall of Constantinople in the East in AD 1453. Ancient Rome became a territorial empire while still a republic, but was then ruled by Roman emperors beginning with Augustus, becoming the Roman Empire following the death of the last republican dictator, the first emperor's adoptive father Julius Caesar.
Titus Claudius Aurelius Aristobulus was a Roman soldier and politician who served as consul in 285. He served two emperors, Carinus and Diocletian.
Marcus Aurelius was a name used by men from the Roman Empire and afterwards. The earliest so called was the emperor Marcus Aurelius.
