The Severan dynasty, sometimes called the Septimian dynasty, was an Ancient Roman imperial dynasty that ruled the Roman Empire between 193 and 235, during the Roman imperial period. The dynasty was founded by the emperor Septimius Severus, who rose to power after the Year of the Five Emperors as the victor of the civil war of 193–197, and his wife, Julia Domna. After the short reigns and assassinations of their two sons, Caracalla and Geta, who succeeded their father in the government of the empire, Julia Domna's relatives themselves assumed power by raising Elagabalus and then Severus Alexander to the imperial office.
The Tetrarchy was the system instituted by Roman emperor Diocletian in 293 AD to govern the ancient Roman Empire by dividing it between two emperors, the augusti, and their junior colleagues and designated successors, the caesares.
Marcus Aurelius Claudius "Gothicus", also known as Claudius II, was Roman emperor from 268 to 270. During his reign he fought successfully against the Alemanni and decisively defeated the Goths at the Battle of Naissus. He died after succumbing to a "pestilence", possibly the Plague of Cyprian that had ravaged the provinces of the Empire.
The Crisis of the Third Century, also known as the Military Anarchy or the Imperial Crisis (235–284), was a period in Roman history during which the Roman Empire had nearly collapsed under the combined pressure of repeated foreign invasions, civil wars and economic disintegration. At the height of the crisis, the Roman state had split into three distinct and competing polities.
The following outline is provided as an overview of and topical guide to ancient Rome:
Gordian III was Roman emperor from 238 to 244. At the age of 13, he became the youngest sole emperor of the united Roman Empire. Gordian was the son of Antonia Gordiana and Junius Balbus, who died before 238. Antonia Gordiana was the daughter of Emperor Gordian I and sister of Emperor Gordian II. Very little is known of his early life before his acclamation.
Gordian I was Roman emperor for 22 days with his son Gordian II in 238, the Year of the Six Emperors. Caught up in a rebellion against the Emperor Maximinus Thrax, he was defeated in battle and committed suicide after the death of his son, having had the shortest reign in imperial history.
The Praetorian Guard was an elite unit of the Imperial Roman army that served as personal bodyguards and intelligence agents for the Roman emperors.
Marcus Clodius Pupienus Maximus was Roman emperor with Balbinus for 99 days in 238, during the Year of the Six Emperors. The sources for this period are scant, and thus knowledge of the emperor is limited. In most contemporary texts he is referred to by his cognomen "Maximus" rather than by his second nomen Pupienus.
The Dominate, also known as the late Roman Empire, is the despotic form of imperial government of the late Roman Empire. It followed the earlier period known as the Principate. Until the empire was reunited in 313, this phase is more often called the Tetrarchy.
The Year of the Six Emperors was the year AD 238, during which six men made claims to be emperors of Rome. This was an early symptom of what historians now call the Crisis of the Third Century, also known as Military Anarchy or the Imperial Crisis, a period in which the Roman Empire nearly collapsed under the combined pressures of foreign invasions and migrations into the Roman territory, plagues, civil wars, peasant rebellions, political instability, Roman reliance on foreign mercenaries known as foederati and commanders nominally working for Rome, the devastating social and economic effects of the plague, debasement of currency, and economic depression. The crisis ended with the final victory of Diocletian and his implementation of reforms in 285.
Rome's military was always tightly keyed to its political system. In the Roman Kingdom the social standing of a person impacted both his political and military roles, which were often organised into familial clans such as the Julia. These clans often wielded a large amount of power and were huge influences through the Roman Kingdom into the Roman Republic. The political system was from an early date based upon competition within the ruling elite, the patricians. Senators in the Republic competed fiercely for public office, the most coveted of which was the post of consul. Two consuls were elected each year to head the government of the state, and would be assigned a consular army and an area in which to campaign. From Gaius Marius and Sulla onwards, control of the army began to be tied into the political ambitions of individuals, leading to the First Triumvirate of the 1st century BC and the resulting Caesar's civil war. The late Republic and Empire was increasingly plagued by usurpations led by or supported by the military, leading to the Crisis of the third century in the late empire.
Castra Praetoria were the ancient barracks (castra) of the Praetorian Guard of Imperial Rome.
In historiography, the Late or Later Roman Empire, traditionally covering the period from 284 CE to 641 CE, was a time of significant transformation in Roman governance, society, and religion. Diocletian's reforms, including the establishment of the tetrarchy, aimed to address the vastness of the empire and internal instability. The rise of Christianity, legalized by Constantine in 313 CE, profoundly changed the religious landscape, becoming a central force in Roman life. Simultaneously, barbarian invasions, particularly by the Goths and Huns, weakened the Western Roman Empire, which collapsed in 476 CE. In contrast, the Eastern Roman Empire endured, evolving into the Byzantine Empire and laying the foundations for medieval Europe.
The Battle at the Harzhorn took place in the early 3rd century between Germanic and Roman troops near the Harzhorn hill between the towns of Kalefeld and Bad Gandersheim, in the state of Lower Saxony, Germany.
Gaius Julius Verus Maximinus "Thrax" was a Roman emperor from 235 to 238. Born of Thracian origin – given the nickname Thrax – he rose up through the military ranks, ultimately holding high command in the army of the Rhine under Emperor Severus Alexander. After Severus was murdered in 235, he was proclaimed emperor by the army, beginning the Crisis of the Third Century, a 50-year period of instability and civil war. He is often remembered for his unusual height, although the veracity of this is disputed.
The Gordian dynasty, sometimes known as the Gordianic dynasty, was short-lived, ruling the Roman Empire from 238 to 244 AD. The dynasty achieved the throne in 238 AD, after Gordian I and his son Gordian II rose up against Emperor Maximinus Thrax and were proclaimed co-emperors by the Roman Senate. Gordian II was killed by the governor of Numidia, Capillianus and Gordian I killed himself shortly after, only 22 days after he was declared emperor. In 238, Pupienus and Balbinus, who were not of the Gordian dynasty, were declared co-emperors but the Senate was forced to make Gordian III a third co-emperor in 238, due to the demands of the Roman people. Maximinus attempted to invade Italy but he was killed by his own soldiers when his army became frustrated. After this, the Praetorian Guard killed Pupienus and Balbinus, leaving Gordian III as the sole emperor. Gordian III ruled until AD 244 when he was either killed after his betrayal by Philip the Arab, or killed at the Battle of Misiche; with his death, the dynasty was ended and Philip the Arab became emperor.
The history of the Later Roman Empire covers the history of the Roman Empire from the beginning of the rule of Diocletian in 284 AD and the establishment of the Tetrarchy in 293 AD by Diocletian to the death of Heraclius in 641 AD.
