TheTimeMap

Augustus, the first Roman emperor, died in Nola after a reign that transformed the Roman Republic into the Roman Empire. His death marked the end of an era and initiated the succession of his stepson Tiberius.His rule brought stability following years of ci...

Constantius Chlorus was elevated to the rank of Augustus on May 1st, 305, following the abdication of the previous Tetrarchs, Diocletian and Maximian. This event marked a significant transition in the governance structure of the Roman Empire under the Tetra...

Galerius was appointed Caesar by Emperor Diocletian as part of the tetrarchy reform intended to stabilize and govern the Roman Empire more effectively. His promotion marked a key moment in the establishment of a divided imperial rule.This appointment gave G...

The Tetrarchy was established by Emperor Diocletian in 293 to address administrative and military challenges in the Roman Empire. This political system divided the empire into four parts, each ruled by a separate emperor.Two senior emperors called Augusti a...

Emperor Probus was assassinated by his own soldiers after numerous military campaigns to secure the Roman Empire's borders. His leadership was challenged internally despite his successes abroad.The mutiny reflected the political instability during the Crisi...

The Crisis of the Third Century marked a period of severe instability within the Roman Empire beginning in 235 AD. This era saw widespread political chaos, military defeats, and economic collapse. The assassination of Emperor Severus Alexander triggered a r...

Elagabalus, also known as Varius Avitus Bassianus, was proclaimed Roman Emperor upon the death of Caracalla’s successor during the Severan dynasty. His accession marked a period of significant religious and political controversy.Elagabalus’s rise was suppor...

Septimius Severus, Roman Emperor, died on February 4th while in the city of Lugdunum, in the Roman province of Gallia Lugdunensis. His death marked the end of his two-decade reign, during which he expanded and consolidated the empire's territories.Severus f...

Publius Septimius Geta, son of Emperor Septimius Severus, was granted the title of Augustus by the Roman Senate. This elevated Geta to co-emperor status alongside his father and his brother Caracalla.The title Augustus signified full imperial authority and ...

Caracalla officially took the title of Augustus, marking his elevation to co-emperor alongside his father, Septimius Severus. This move solidified his position within the Severan dynasty and established his authority in the empire.The announcement was made ...

Following the assassination of Emperor Pertinax, the Roman imperial throne was sold to the highest bidder by the Senate. Didius Julianus secured the empire by offering the largest payment to the Praetorian Guard.This unprecedented auction marked a significa...

Commodus formally assumed the role of Roman Emperor following the death of his father Marcus Aurelius. His accession marked a significant transition from the era of the traditional adoptive succession to hereditary rule.Though young and inexperienced, Commo...

Marcus Aurelius, Roman Emperor and Stoic philosopher, died at the military camp in Vindobona on March 17th. His death marked the end of the Pax Romana, a period of relative peace and stability across the empire.He spent his final days on the northern fronti...

Roman Emperor Marcus Aurelius officially declared his son Commodus as co-emperor, sharing imperial authority.This political move marked the first time a biological son was directly elevated to power alongside his father, signaling a shift in Roman imperial ...

Lucius Verus was formally declared co-emperor alongside Marcus Aurelius, marking a significant moment in Roman imperial succession. This joint rule established a precedent for multiple emperors sharing power concurrently.The accession reflected the Senate's...

Marcus Aurelius officially became Roman Emperor following the death of Antoninus Pius. His accession marked the continuation of the Nerva-Antonine dynasty through adoptive succession.The transition of power was peaceful, with Marcus Aurelius sharing rule wi...

Emperor Hadrian, renowned for consolidating and fortifying the Roman Empire's frontiers, passed away at his villa near Rome. His death marked the end of a significant era during which he promoted cultural integration and architectural achievement throughout...

Hadrian was officially declared emperor following the death of his predecessor, Trajan, marking a significant transition in Roman imperial leadership. His accession was confirmed by the Roman Senate and solidified his rule over the vast empire.Hadrian’s ris...

Emperor Nerva formally adopted Trajan as his heir in a move to secure the imperial succession and stabilize the Roman Empire. This adoption marked the beginning of the era of the "Five Good Emperors."Trajan's adoption was a pivotal moment in Roman political...

After the murder of Emperor Domitian, the Roman Senate appointed Nerva as emperor, marking a shift from autocratic rule to a more stabilizing governance. Nerva, previously a respected senator, was seen as a compromise candidate to appease both the military ...

Following the death of Emperor Galba, Otho swiftly ascended to power in Rome, marking a critical juncture in the Year of the Four Emperors. His accession was characterized by rapid political maneuvering within the imperial palace on Palatine Hill.Despite in...

Galba was declared Roman Emperor following the assassination of Nero, marking the end of the Julio-Claudian dynasty. His accession was largely supported by the Senate and the Praetorian Guard in Rome.His rule began a turbulent period known as the Year of th...

The Year of the Four Emperors was a tumultuous period marking rapid succession of Roman emperors after the fall of Nero. It involved the rise and fall of Galba, Otho, Vitellius, and Vespasian within a single year.This crisis resulted in civil war and politi...

Following the death of Emperor Claudius, Nero Claudius Caesar Augustus Germanicus was declared Roman Emperor. His rise to power was orchestrated largely by his mother, Agrippina the Younger, who secured his adoption by Claudius prior to the emperor's death....