8.4: The Roman Empire

Julius Caesar

Julius Caesar was a late Republic statesman and general who waged civil war against the Roman Senate, defeating many patrician conservatives before he declared himself dictator.

Learning Objectives

Explain the rise of Julius Caesar and his various successes

Key Takeaways

Key Points

• In 60 BCE, Julius Caesar, Marcus Licinius Crassus, and Gnaeus Pompeius Magnus ( Pompey the Great) formed a political alliance, known as the First Triumvirate, that was to dominate Roman politics for several years, though their populist tactics were opposed by the conservative Senate.
• Caesar enjoyed great success as commander in the Gallic Wars. Upon conclusion of the wars, he refused to return to Rome as ordered by the Senate, and instead, crossed the Rubicon in 49 BCE with a legion, entering Roman territory under arms.
• Caesar fought in a civil war against his old colleague, Pompey, who had aligned himself with conservative interests in the Senate. Caesar quickly defeated his rival and many other Senate conservatives who had previously opposed him.
• With most of his enemies gone, Caesar installed himself as dictator in perpetuity. As dictator, he instituted a series of reforms and, most notably, created the Julian calendar.
• Caesar was assassinated in 44 BCE by his remaining enemies in the Senate, throwing Rome into another period of chaos and civil war.

Key Terms

• dictator: During Caesar’s time, in the late Roman Republic, ruler for life. In the early Republic, by contrast, a dictator was a general appointed by the Senate, who served temporarily during a national emergency.
• Julius Caesar: A Roman general, statesman, consul, and author, who played a critical role in the events that led to the demise of the Roman Republic and the rise of the Roman Empire.
• Pompey: A military and political leader of the late Roman Republic, who represented the Roman Senate in a civil war against Julius Caesar.

Gaius Julius Caesar was a Roman general, statesman, consul, and notable author of Latin prose. He played a critical role in the events that led to the demise of the Roman Republic and the rise of the Roman Empire. In 60 BCE, Caesar, Marcus Licinius Crassus, and Gnaeus Pompeius Magnus (Pompey the Great) formed a political alliance, known as the First Triumvirate, that was to dominate Roman politics for several years. Caesar made the initial overtures that led to the informal alliance. An acclaimed military commander who had also served in a variety of political offices, Caesar sought election as consul in 59 BCE, along with two other candidates. The election was particularly contentious, with corruption occurring on all sides. Caesar won, as well as conservative Marcus Bibulus, but saw that he could further his political influence with Crassus and Pompey. Their attempts to amass power through populist tactics were opposed by the conservative ruling class within the Roman Senate, among them Cato the Younger and Cicero. Meanwhile, Caesar’s victories in the Gallic Wars, completed by 51 BCE, extended Rome’s territory to the English Channel and the Rhine River. Caesar became the first Roman general to cross both when he built a bridge across the Rhine and conducted the first invasion of Britain.

These achievements granted Caesar unmatched military power and threatened to eclipse the standing of his colleague, Pompey, who had realigned himself with the Senate after the death of Crassus in 53 BCE. With the Gallic Wars concluded, the Senate ordered Caesar to step down from his military command and return to Rome. Caesar refused and marked his defiance in 49 BCE by crossing the Rubicon (shallow river in northern Italy) with a legion. In doing so, he deliberately broke the law on imperium and engaged in an open act of insurrection and treason. Civil War ensued, with Pompey representing the Roman Senate forces against Caesar, but Caesar quickly defeated Pompey in 48 BCE, and dispatched Pompey’s supporters in the following year. During this time, many staunch Senate conservatives, such as Cato the Younger, were either killed or committed suicide, thereby greatly decreasing the number of optimates in Rome.

Caesar as Dictator

Bust of Julius Caesar: Gaius Julius Caesar was a Roman general, statesman, consul, and notable author of Latin prose.

After assuming control of the government upon the defeat of his enemies in 45 BCE, Caesar began a program of social and governmental reforms that included the creation of the Julian calendar. He centralized the bureaucracy of the Republic and eventually proclaimed himself “dictator in perpetuity.”  It is important to note that Caesar did not declare himself rex (king), but instead, claimed the title of dictator. Contrary to the negative connotations that the modern use of the word evokes, the Roman dictator was appointed by the Senate during times of emergency as a unilateral decision-maker who could act more quickly than the usual bureaucratic processes that the Republican government would allow. Upon bringing the Roman state out of trouble, the dictator would then resign and restore power back to the Senate. Thus, Caesar’s declaration ostensibly remained within the Republican framework of power, though the huge amounts of power he had gathered for himself in practice set him up similar to a monarch.

Caesar used his powers to fill the Senate with his own partisans. He also increased the number of magistrates who were elected each year, which created a large pool of experienced magistrates and allowed Caesar to reward his supporters. He used his powers to appoint many new senators, which eventually raised the Senate’s membership to 900. All the appointments were of his own partisans, which robbed the senatorial aristocracy of its prestige and made the Senate increasingly subservient to him. To minimize the risk that another general might attempt to challenge him, Caesar passed a law that subjected governors to term limits. All of these changes watered down the power of the Senate, which infuriated those used to aristocratic privilege. Such anger proved to be fuel for Caesar’s eventual assassination.

Despite the defeat of most of his conservative enemies, however, underlying political conflicts had not been resolved. On the Ides of March (March 15) 44 BCE, Caesar was scheduled to appear at a session of the Senate, and a group of senators led by Marcus Junius Brutus and Gaius Cassius Longinus conspired to assassinate him. Though some of his assassins may have had ulterior personal vendettas against Caesar, Brutus is said to have acted out of concern for the Republic in the face of what he considered to be a monarchical tyrant. Mark Antony, one of Caesar’s generals and administrator of Italy during Caesar’s campaigns abroad, learned such a plan existed the night before, and attempted to intercept Caesar, but the plotters anticipated this and arranged to meet him outside the site of the session and detain him him there. Caesar was stabbed 23 times and lay dead on the ground for some time before officials removed his body.

A new series of civil wars broke out following Caesar’s assassination, and the constitutional government of the Republic was never restored. Caesar’s adopted heir, Octavian, later known as Augustus, rose to sole power, and the era of the Roman Empire began.

Founding of the Roman Empire

Augustus rose to power after Julius Caesar’s assassination, through a series of political and military maneuvers, eventually establishing himself as the first emperor of Rome.

Learning Objectives

Explain the key features of Augustus’s reign and the reasons for its successes

Key Takeaways

Key Points

• Following the assassination of his maternal great-uncle Julius Caesar in 44 BCE, Caesar’s will named Octavian as his adopted son and heir when Octavian was only 19 years old.
• By ingratiating himself with his father’s legions, Octavian was able to fulfill the military demands of the Roman Senate. He quickly gained both power and prestige and formed the Second Triumvirate with Antony and Lepidus in 43 BCE.
• By 31 BCE, Octavian had emerged as the sole ruler of Rome, upon the political and military defeat of the two other triumvirs.

Key Terms

• Mark Antony: Julius Caesar’s right hand man, and a member of the Second Triumvirate. He was eventually defeated by Octavian at the Battle of Actium in 31 BCE.
• Augustus: The founder of the Roman Empire, known as Octavian during his early years and during his rise to power.

Augustus is regarded by many scholars as the founder and first emperor of the Roman Empire. He ruled from 27 BCE until his death in 14 CE.

Rise to Power

Augustus was born Gaius Octavius, and in his early years was known as Octavian. He was from an old and wealthy equestrian branch of the plebeian Octavii family. Following the assassination of his maternal great-uncle, Julius Caesar, in 44 BCE, Caesar’s will named Octavian as his adopted son and heir when Octavian was only 19 years old. The young Octavian quickly took advantage of the situation and ingratiated himself with both the Roman people and his adoptive father’s legions, thereby elevating his status and importance within Rome. Octavian found Mark Antony, Julius Caesar’s former colleague and the current consul of Rome, in an uneasy truce with Caesar’s assassins, who had been granted general amnesty for their part in the plot. Nonetheless, Antony eventually succeeded in driving most of them out of Rome, using Caesar’s eulogy as an opportunity to mount public opinion against the assassins.

Mark Antony began amassing political support, and Octavian set about rivaling it. Eventually, many Caesarian sympathizers began to view Octavian as the lesser evil of the two. Octavian allied himself with optimate factions, despite their opposition to Caesar when he was alive. The optimate orator, Marcus Tullius Cicero, began attacking Antony in a series of speeches, portraying him as a threat to the republican order of Rome. As public opinion against him mounted, Antony fled to Cisalpine Gaul at the end of his consular year.

Octavian further established himself both politically and militarily in the following months. He was declared a senator and granted the power of military command, imperium, in 43 BCE, and was further able to leverage his successes to obtain the vacant consulships left by the two defeated consuls of that year.

Octavian eventually reached an uneasy truce with Mark Antony and Marcus Lepidus in October 43 BCE, and together, the three formed the Second Triumvirate to defeat the assassins of Caesar. Following their victory against Brutus at Phillipi, the Triumvirate divided the Roman Republic among themselves and ruled as military dictators. Relations within the Triumvirate were strained as the various members sought greater political power. Civil war between Antony and Octavian was averted in 40 BCE, when Antony married Octavian’s sister, Octavia Minor. Despite his marriage, Antony continued a love affair with Cleopatra, the former lover of Caesar and queen of Egypt, further straining political ties to Rome. Octavian used Antony’s relationship with Cleopatra to his own advantage, portraying Antony as less committed to Rome. With Lepidus expelled in 36 BCE, the Triumvirate finally disintegrated in the year 33. Finally, disagreements between Octavian and Antony erupted into civil war in the year 31 BCE.

The Roman Senate, at Octavian’s direction, declared war on Cleopatra’s regime in Egypt  and proclaimed Antony a traitor. Antony was defeated by Octavian at the naval Battle of Actium the same year. Defeated, Antony fled with Cleopatra to Alexandria where they both committed suicide. With Antony dead, Octavian was left as the undisputed master of the Roman world. Octavian would assume the title Augustus, and reign as the first Roman Emperor.

Augustus of Prima Porta: The statue of Augustus of Prima Porta is perhaps one of the best known images of the Emperor Augustus. It portrays the emperor as perpetually youthful, and depicts many of the key propaganda messages that Augustus put forth during his time as emperor.

The Pax Romana

The Pax Romana, which began under Augustus, was a 200-year period of peace in which Rome experienced minimal expansion by military forces.

Learning Objectives

Describe the key reasons for and characteristics of the Pax Romana

Key Takeaways

Key Points

• The Pax Romana was established under Augustus, and for that reason it is sometimes referred to as the Pax Augusta.
• Augustus closed the Gates of Janus three times to signify the onset of peace: in 29 BCE, 25 BCE, and 13 BCE, likely in conjunction with the Ara Pacis ceremony.
• The Romans regarded peace not as an absence of war, but as the rare situation that existed when all opponents had been beaten down and lost the ability to resist. Thus, Augustus had to persuade Romans that the prosperity they could achieve in the absence of warfare was better for the Empire than the potential wealth and honor acquired when fighting a risky war.
• The Ara Pacis is a prime example of the propaganda Augustus employed to promote the Pax Romana, and depicts images of Roman gods and the city of Rome personified amidst wealth and prosperity.

Key Terms

• Ara Pacis Augustae: The Altar of Augustan Peace, a sacrificial altar that displays imagery of the peace and prosperity Augustus achieved during the Pax Romana.
• Pax Romana: The long period of relative peace and minimal expansion by military force experienced by the Roman Empire in the 1st and 2nd centuries CE. Also sometimes known as the Pax Augusta.

Augustus’s Constitutional Reforms

After the demise of the Second Triumvirate, Augustus restored the outward facade of the free Republic with governmental power vested in the Roman
Senate, the executive magistrates, and the legislative assemblies. In reality, however, he retained his autocratic power over the Republic as a military dictator. By law, Augustus held powers granted to him for life by the Senate, including supreme military command and those of tribune and censor. It took several years for Augustus to develop the framework within which a formally republican state could be led under his sole rule.

Augustus passed a series of laws between the years 30 and 2 BCE that transformed the constitution of the Roman Republic into the constitution of the Roman Empire. During this time, Augustus reformed the Roman system of taxation, developed networks of roads with an official courier system, established a standing army, established the Praetorian Guard, created official police and fire-fighting services for Rome, and rebuilt much of the city during his reign.

First Settlement

During the First Settlement, Augustus modified the Roman political system to make it more palatable to the senatorial classes, eschewing the open authoritarianism exhibited by Julius Caesar and Mark Anthony. In 28 BCE, in a calculated move, Augustus eradicated the emergency powers he held as dictator and returned all powers and provinces to the Senate and the Roman people. Members of the Senate were unhappy with this prospect, and in order to appease them, Augustus agreed to a ten-year extension of responsibilities over disorderly provinces. As a result of this, Augustus retained imperium over the provinces where the majority of Rome’s soldiers were stationed. Augustus also rejected monarchical titles, instead calling himself princeps civitatis (“First Citizen”). The resulting constitutional framework became known as the Principate, the first phase of the Roman Empire.

At this time, Augustus was given honorifics that made his full name Imperator Caesar divi filius Augustus. Imperator stressed military power and victory and emphasized his role as commander-in-chief. Divi filius roughly translates to “son of the divine,” enhancing his legitimacy as ruler without deifying him completely. The use of Caesar provided a link between himself and Julius Caesar, who was still very popular among lower classes. Finally, the name Augustus raised associations to Rome’s illustrious and majestic traditions, without creating heavy authoritarian overtones.

By the end of the first settlement, Augustus was in an ideal political position. Although he no longer held dictatorial powers, he had created an identity of such influence that authority followed naturally.

Second Settlement

In the wake of Augustus’s poor health, a second settlement was announced in 23 BCE. During this time, Augustus outwardly appeared to rein
in his constitutional powers, but really continued to extend his dominion throughout the Empire. Augustus renounced his ten-year consulship, but in return, secured the following concessions for himself.

• A seat on the consuls’s platform at the front of the Curia
• The right to speak first in a Senate meeting, or ius primae relationis
• The right to summon a meeting of the Senate, which was a
  useful tool for policy making
• Care of Rome’s grain supply, or cura annonae, which gave him sweeping patronage powers over the plebs

Augustus was also granted the role of tribunicia potestas, which enabled him to act as the guardian of the citizens of Rome. This position came with a number of benefits, including the right to propose laws to the Senate whenever he wanted, veto power of laws, and the ability to grant amnesty to any citizen accused of a crime. Though the role of tribunicia potestas effectively gave Augustus legislative supremacy, it also had many positive connotations hearkening back to the Republic, making Augustus’s position less offensive to the aristocracy. Beyond Rome, Augustus was granted maius imperium, meaning greater (proconsular) power. This position enabled him to effectively override the orders of any other provincial governor in the Roman Empire, in addition to governing his own provinces and armies.

Augustus and the Pax Romana

The Pax Romana (Latin for “Roman peace”) was a long period of relative peace and minimal expansion by military forces experienced by the Roman Empire in the 1^st and 2^nd centuries CE. Since this period was initiated during
Augustus’s reign, it is sometimes called Pax Augusta. Its span was approximately 206 years (27 BCE to 180 CE).

The Pax Romana started after Augustus, then Octavian, met and defeated Mark Antony in the Battle of Actium in 31 BCE. Augustus created a junta of the greatest military magnates and gave himself the titular honor. By binding together these leading magnates into a single title, he eliminated the prospect of civil war. The Pax Romana was not immediate, despite the end of the civil war, because fighting continued in Hispania and in the Alps.
Despite continuous wars of imperial expansion on the Empire’s frontiers and one year-long civil war over the imperial succession, the Roman world was largely free from large-scale conflict for more than two centuries. Augustus dramatically enlarged the Empire, annexing Egypt, Dalmatia, Pannonia, Noricum, and Raetia, expanded possessions in Africa as well as into Germania, and completed the conquest of Hispania. Beyond Rome’s frontiers, he secured the Empire with a buffer region of client states, and made peace with the troublesome Parthian Empire through diplomacy.

Augustus closed the Gates of Janus (the set of gates to the Temple of Janus, which was closed in times of peace and opened in times of war) three times. The first time was in 29 BCE and the second in 25 BCE. The third closure is undocumented, but scholars have persuasively dated the event to 13 BCE during the Ara Pacis ceremony, which was held after Augustus and Agrippa jointly returned from pacifying the provinces.

Augustus faced some trouble making peace an acceptable mode of life for the Romans, who had been at war with one power or another continuously for 200 years prior to this period. The Romans regarded peace not as an absence of war, but the rare situation that existed when all opponents had been beaten down and lost the ability to resist. Augustus’s challenge was to persuade Romans that the prosperity they could achieve in the absence of war was better for the Empire than the potential wealth and honor acquired from fighting. Augustus succeeded by means of skillful propaganda. Subsequent emperors followed his lead, sometimes producing lavish ceremonies to close the Gates of Janus, issuing coins with Pax on the reverse, and patronizing literature extolling the benefits of the Pax Romana.

The Ara Pacis Augustae

The Ara Pacis Augustae, or Altar of Augustan Peace, is one of the best examples of Augustan artistic propaganda and the prime symbol of the new Pax Romana. It was commissioned by the Senate in 13 BCE to honor the peace and bounty established by Augustus following his return from Spain and Gaul. The theme of peace is seen most notably in the east and west walls of the Ara Pacis, each of which had two panels, although only small fragments remain for one panel on each side. On the east side sits an unidentified goddess presumed by scholars to be Tellus, Venus, or Peace within an allegorical scene of prosperity and fertility. Twins sit on her lap along with a cornucopia of fruits. Personifications of the wind and sea surround her, each riding on a bird or a sea monster. Beneath the women rests a bull and lamb, both sacrificial animals, and flowering plants fill the empty space. The nearly incomplete second eastern panel appears to depict a female warrior, possibly Roma, amid the spoils of conquest.

The Tellus Mater Panel of the Ara Pacis: The eastern wall of the Ara Pacis, which depicts the Tellus Mater surrounded by symbols of fertility and prosperity.

Augustus died in 14 CE at the age of 75. He may have died from natural causes, although unconfirmed rumors swirled that his wife Livia poisoned him. His adopted son (also stepson and former son-in-law), Tiberius, succeeded him to the throne.

The Julio-Claudian Emperors

The Julio-Claudian emperors expanded the boundaries of the Roman Empire and engaged in ambitious construction projects. However, they were met with mixed public reception due to their unique ruling methods.

Learning Objectives

Describe the reigns of the emperors who followed Augustus

Key Takeaways

Key Points

• Tiberius was the second emperor of the Roman Empire, and was considered one of Rome ’s greatest generals.
• Tiberius conquered Pannonia, Dalmatia, Raetia, and temporarily, parts of Germania. His conquests laid the foundations for the northern frontier.
• When Tiberius died on March 16, 37 CE, his estate and titles were left to Caligula and Tiberius’s grandson, Gemellus. However, Caligula’s first act as Princeps was to to void Tiberius’s will and have Gemellus executed.
• Although Caligula is described as a noble and moderate ruler during the first six months of his reign, sources portray him as a cruel and sadistic tyrant, immediately thereafter.
• In 38 CE, Caligula focused his attention on political and public reform; however, by 39 CE, a financial crisis had emerged as a result of Caligula’s use of political payments, which had overextended the state’s treasury. Despite financial difficulties, Caligula began a number of construction projects during this time.
• In 41 CE, Caligula was assassinated as part of a conspiracy by officers of the Paretorian Guard, senators, and courtiers.
• Claudius, the fourth emperor of the Roman Empire, was the first Roman Emperor to be born outside of Italy.
• Despite his lack of experience, Claudius was an able and efficient administrator, as well as an ambitious builder. He constructed many roads, aqueducts, and canals across the Empire.
• Claudius’s appointment as emperor by the Praetorian Guard damaged his reputation. This was amplified when Claudius became the first emperor to resort to bribery as a means to secure army loyalty. Claudius also rewarded the Praetorian Guard that had named him emperor with 15,000 sesterces.

Key Terms

• Praetorian Guard: A force of bodyguards used by the Roman emperors. They also served as secret police, and participated in wars.
• Julio-Claudian dynasty: The first five Roman emperors who ruled the Roman Empire, including Augustus, Tiberius, Caligula, Claudius, and Nero.

Tiberius

Tiberius was the second emperor of the Roman Empire and reigned from 14 to 37 CE. The previous emperor, Augustus, was his stepfather; this officially made him a Julian. However, his biological father was Tiberius Claudius Nero, making him a Claudian by birth. Subsequent emperors would continue the blended dynasty of both families for the next 30 years, leading historians to name it the Julio-Claudian Dynasty. Tiberius is also the grand-uncle of Caligula, his successor, the paternal uncle of Claudius, and the great-grand uncle of Nero.

Tiberius is considered one of Rome’s greatest generals. During his reign, he conquered Pannonia, Dalmatia, Raetia, and temporarily, parts of Germania. His conquests laid the foundations for the northern frontier. However, he was known by contemporaries to be dark, reclusive, and somber—a ruler who never really wanted to be emperor. The tone was set early in his reign when the Senate convened to validate his position as Princeps. During the proceedings, Tiberius attempted to play the part of the reluctant public servant, but came across as derisive and obstructive. His direct orders appeared vague, inspiring more debate than action and leaving the Senate to act on its own. After the death of Tiberius’s son in 23 CE, the emperor became even more reclusive, leaving the administration largely in the hands of his unscrupulous Praetorian Prefects.

Tiberius: Tiberius, Romisch-Germanisches Museum, Cologne

Caligula

When Tiberius died on March 16, 37 CE, his estate and titles were left to Caligula and Tiberius’s grandson, Gemellus, with the intention that they would rule as joint heirs. However, Caligula’s first act as Princeps was to to void Tiberius’s will and have Gemellus executed. When Tiberius died, he had not been well liked. Caligula, on the other hand, was almost universally heralded upon his assumption of the throne. There are few surviving sources on Caligula’s reign. Caligula’s first acts as emperor were generous in spirit, but political in nature. He granted bonuses to the military, including the Praetorian Guard, city troops, and the army outside of Italy. He destroyed Tiberius’s treason papers and declared that treason trials would no longer continue as a practice, even going so far as to recall those who had already been sent into exile for treason. He also helped those who had been adversely affected by the imperial tax system, banished certain sexual deviants, and put on large public spectacles, such as gladiatorial games, for the common people.

Although he is described as a noble and moderate ruler during the first six months of his reign, sources portray him as a cruel and sadistic tyrant immediately thereafter. The transitional point seems to center around an illness Caligula experienced in October of 37 CE. It is unclear whether the incident was merely an illness, or if Caligula had been poisoned. Either way, following the incident, the young emperor began dealing with what he considered to be serious threats, by killing or exiling those who were close to him. During the remainder of his reign, he worked to increase the personal power of the emperor during his short reign, and devoted much of his attention to ambitious construction projects and luxurious dwellings for himself.

In 38 CE, Caligula focused his attention on political and public reform. He published the accounts of public funds, which had not been done under Tiberius’s reign, provided aid to those who lost property in fires, and abolished certain taxes. He also allowed new members into the equestrian and senatorial orders. Perhaps most significantly, he restored the practice of democratic elections, which delighted much of the public but was a cause for concern among the aristocracy.

By 39 CE, a financial crisis had emerged as a result of Caligula’s use of political payments, which had overextended the state’s treasury. In order to to restock the treasury, Caligula began falsely accusing, fining, and even killing individuals in order to seize their estates. He also asked the public to lend the state money, and raised taxes on lawsuits, weddings, and prostitution, as well as auctioning the lives of gladiators at shows. Wills that left items to Tiberius were also reinterpreted as having left said items to Caligula. Centurions who had acquired property by plunder were also forced to turn over their spoils to the state, and highway commissioners were accused of incompetence and embezzlement and forced to repay money that they might not have taken in the first place. Around the same time, a brief famine occurred, possibly as a result of the financial crisis, though its causes remain unclear.

Despite financial difficulties, Caligula began a number of construction projects during this time. He initiated the construction of two aqueducts in Rome, Awua Claudia and Anio Novus, which were considered contemporary engineering marvels. In 39 CE, he ordered the construction of a temporary floating bridge between the resort of Baiae and the port of Puteoli, which rivaled the bridge Persian king Xerxes had constructed across the Hellespont. Caligula had two large ships constructed for himself that were among the largest constructed in the ancient world. The larger of the two was essentially an elaborate floating palace with marble floors and plumbing. He also improved the harbors at Rhegium and Sicily, which allowed for increased grain imports from Egypt, possibly in response to the famine Rome experienced.

During his reign, the Empire annexed the Kingdom of Mauretania as a province. Mauretania had previously been a client kingdom ruled by Ptolemy of Mauretania. Details on how and why Mauretania was ultimately annexed remain unclear. Ptolemy was had been invited to Rome by Caligula and suddenly executed in what was seemingly a personal political move, rather than a calculated response to military of economic needs. However, Roman possession of Mauretania ultimately proved to be a boon to the territory, as the subsequent rebellion of Tacfarinas demonstrated how exposed the African Proconsularis was on its western borders. There also was a northern campaign to Britannia that was aborted during Caligula’s reign, though there is not a cohesive narrative of the event.

In 39 CE, relations between Caligula and the Senate deteriorated. Caligula ordered a new set of treason investigations and trials, replacing the consul and putting a number of senators to death. Many other senators were reportedly treated in a degrading fashion and humiliated by Caligula. In 41 CE, Caligula was assassinated as part of a conspiracy by officers of the Praetorian Guard, senators, and courtiers. The conspirators used the assassination as an opportunity to re-institute the Republic, but were ultimately unsuccessful.

Caligula: Emperor Caligula, Ny Carlsberg Glyptotek.

Claudius

Claudius, the fourth emperor of the Roman Empire, was the first Roman Emperor to be born outside of Italy. He was afflicted with a limp and slight deafness, which caused his family to ostracize him and exclude him from public office until he shared the consulship with his nephew, Caligula, in 37 CE. Due to Claudius’s afflictions, it is likely he was spared from the many purges of Tiberius and Caligula’s reigns. As a result, Claudius was declared Emperor by the Praetorian Guard after Caligula’s assassination, due to his position as the last man in the Julio-Claudian line.

Despite his lack of experience, Claudius was an able and efficient administrator, as well as an ambitious builder; he constructed many roads, aqueducts, and canals across the Empire. His reign also saw the beginning of the conquest of Britain. Additionally, Claudius presided over many public trials, and issued up to 20 edicts a day. However, in spite of his capable rule, Claudius continued to be viewed as vulnerable by the Roman nobility throughout his reign, forcing Claudius to constantly defend his position. He did so by emphasizing his place within the Julio-Claudian family, dropping the cognomen, Nero, from his name, and replacing it with Caesar.

Nonetheless, his appointment as emperor by the Praetorian Guard caused damage to his reputation, and this was amplified when Claudius became the first emperor to resort to bribery as a means to secure army loyalty. Claudius also rewarded the Praetorian Guard that had named him emperor with 15,000 sesterces.

Claudius: Bust of Emperor Claudius.

The Last Julio-Claudian Emperors

Nero’s consolidation of personal power led to rebellion, civil war, and a year-long period of upheaval, during which four separate emperors ruled Rome.

Learning Objectives

Explain how Nero and other factors contributed to the fall of the Julio-Claudian Dynasty

Key Takeaways

Key Points

• Nero reigned as Roman Emperor from 54 to 68 CE, and was the last emperor in the Julio-Claudian Dynasty.
• Very early in Nero’s rule, problems arose, due to his mother, Agrippina the Younger’s competition for influence with Nero’s two main advisers, Seneca and Burrus.
• Nero minimized the influence of all of his advisers and effectively eliminating all rivals to his throne. He also slowly removed power from the Senate, despite having promised to grant them with powers equivalent to those they had under republican rule.
• In March 68, Gaius Gulius Vindex, the governor of Gallia Lugdunensis, rebelled against Nero’s tax policies and called upon the support of Servius Sulpicius Galba, the governor of Hispania Tarraconensis, who not only joined the rebellion, but also declared himself emperor in opposition to Nero. Galba would become the first emperor in what was known as the Year of the Four Emperors.
• Vespasian was the fourth and final emperor to rule in the year 69 CE, and established the stable Flavian Dynasty, that was to succeed the Julio-Claudians.

Key Terms

• Flavian dynasty: A Roman imperial dynasty that ruled the Roman Empire from 69 to 96 CE, encompassing the reigns of Vespasian and his two sons, Titus and Domitian.
• Julio-Claudian dynasty: The first five Roman emperors who ruled the Roman Empire, including Augustus, Tiberius, Caligula, Claudius, and Nero.
• Praetorian Guard: A force of bodyguards used by the Roman emperors. They also served as secret police and participated in wars.

Nero

Nero reigned as Roman Emperor from 54 to 68 CE, and was the last emperor in the Julio-Claudian Dynasty. Nero focused on diplomacy, trade, and enhancing the cultural life of the Empire during his rule. He ordered theaters to be built and promoted athletic games. However, according to Tacitus, a historian writing one generation after Nero’s rule, Nero was viewed by many Romans as compulsive and corrupt. Suetonius, another historian writing a generation after Nero’s rule, claims that Nero began the Great Fire of Rome in 64 CE, in order to clear land for a palatial complex he was planning.

Nero: A marble bust of Nero, at the Antiquarium of the Palatine.

Early Rule

When Claudius died in 54, Nero was established as the new emperor. According to some ancient historians, Agrippina the Younger, Nero’s mother, poisoned Claudius in order to make Nero the youngest Roman emperor (at the age of 17). Very early in Nero’s rule, problems arose due to Agrippina’s competition for influence with Nero’s two main advisers, Seneca and Burrus. For example, in the year 54, Agrippina caused a scandal by attempting to sit with Nero while he met with the Armenian envoy, an unheard of act, since women were not permitted to be in the same room as men while official business was being conducted. The next year, Agrippina attempted to intervene on behalf of Nero’s wife, Octavia, with whom Nero was dissatisfied and cheating on with a former slave. With the help of his adviser, Seneca, Nero managed to resist his mother’s interference yet again.

Sensing his resistance to her influence, Agrippina began pushing for Britannicus, Nero’s stepbrother, to become emperor. Britannicus was still shy of 14 years old, and legally still a minor, but because he was the son of the previous emperor, Claudius, by blood, Agrippina held hope that he would be accepted as the true heir to the throne. Her efforts were thwarted, however, when Britannicus mysteriously died one day short of becoming a legal adult. Many ancient historians claim that Britannicus was poisoned by his stepbrother, Nero. Shortly thereafter, Agrippina was ordered out of the imperial residence.

Consolidation of Power

Over time, Nero began minimizing the influence of all advisers and effectively eliminating all rivals to his throne. Even Seneca and Burrus were accused of conspiring against, and embezzling from the emperor; they were eventually acquitted, reducing their roles from careful management of the government to mere moderation of Nero’s actions on the throne. In 58 CE, Nero became romantically involved with Poppaea Sabina, the wife of his friend and future emperor, Otho. Because divorcing his current wife and marrying Poppaea did not seem politically feasible with his mother still alive, Nero ordered Agrippina’s murder the following year.

Nero’s consolidation of power included a slow usurpation of authority from the Senate. Although he had promised the Senate powers equivalent to those it had under republican rule, over the course of the first decade of Nero’s rule, the Senate was divested of all its authority, which led directly to the Pisonian Conspiracy of 65. Gaius Calpurnius Piso, a Roman statesman, organized the conspiracy against Nero with the help of Subrius Flavus, a tribune, and Sulpicius Asper, a centurion of the Praetorian Guard, in order to restore the Republic and wrest power from the emperor. However, the conspiracy failed when it was discovered by a freedman, who reported the details to Nero’s secretary. This led to the execution of all conspirators. Seneca was also ordered to commit suicide after he admitted to having prior knowledge of the plot.

Vindex and Galba’s Revolt

In March 68, Gaius Gulius Vindex, the governor of Gallia Lugdunensis, rebelled against Nero’s tax policies and called upon the support of Servius Sulpicius Galba, the governor of Hispania Tarraconensis, who not only joined the rebellion, but also declared himself emperor in opposition to Nero. Two months later, Vindex’s forces were defeated at the Battle of Vesontio, and Vindex committed suicide. The legions that defeated Vindex then attempted to proclaim their own commander, Verginius, as emperor, but Verginius refused to act against Nero. Meanwhile, public support for Galba grew despite his being officially declared a public enemy. In response, Nero began to flee Rome only to turn back when the army officers that were with him refused to obey his commands. When Nero returned, he received word that the Senate had declared him a public enemy and intended to beat him to death—although in actuality, the Senate remained open to mediating an end to the conflict, and many senators felt a sense of loyalty to Nero, even if only on account of him being the last of the Julio-Claudian line. However, Nero was unaware of this and convinced his private secretary to help him take his own life.

Year of the Four Emperors

The suicide of Emperor Nero was followed by a brief period of civil war. Then, between June 68 and December 69, four emperors ruled in succession: Galba, Otho, Vitellius, and Vespasian.

Galba was recognized as emperor following Nero’s suicide, but he did not remain popular for long. On his march to Rome, he either destroyed or took enormous fines from towns that did not accept him immediately. Once in Rome, Galba made many of Nero’s reforms redundant, including ones that benefited important people within Roman society. Galba executed many senators and equites without trial, in a paranoid attempt to consolidate his power, which unsettled many, including the Praetorian Guard. Finally, the legions of Germania Inferior refused to swear allegiance and obedience to Galba, instead proclaiming the governor Vitellius as emperor.

This caused Galba to panic and name Lucius Calpurnius Piso Licinianus, a young senator, as his successor. This upset many people, but especially Marcus Salvius Otho, who had coveted after the title for himself. Otho bribed the Praetorian Guard to support him and embarked upon a coup d’etat, during which Galba was killed by the Praetorians. Otho was recognized as emperor by the Senate the same day and was expected by many to be a fair ruler. Unfortunately, soon thereafter, Vitellius declared himself Imperator in Germania, and dispatched half his army to march on Italy.

Otho attempted to broker a peace, but Vitellius was uninterested, especially because his legions were some of the finest in the empire, which gave him a great advantage over Otho. Indeed, Otho was eventually defeated at the Battle of Bedriacum, and rather than flee and attempt a counterattack, Otho committed suicide. He had been emperor for little more than three months. Vitellius was recognized as emperor by the Senate. Very quickly thereafter, he proceeded to bankrupt the imperial treasury by throwing a series of feasts, banquets, and triumphal parades. He tortured and executed money lenders who demanded payment and killed any citizens who named him as their heir. He also lured many political rivals to his palace in order to assassinate them.

Meanwhile, many of the legions in the African province of Egypt, and the Middle East provinces of Iudaea and Syria, including the governor of Syria, acclaimed Vespasian as their emperor. A force marched from the Middle East to Rome, and Vespasian traveled to Alexandria, where he was officially named Emperor. From there, Vespasian invaded Italy and won a crushing victory overVitellius’s army at the Second Battle of Bedriacum. Vitellius was found by Vespasian’s men at the imperial palace and put to death. The Senate acknowledged Vespasian as emperor the next day, marking the beginning of the Flavian Dynasty, which was to succeed the Julio-Claudian line. Vespasian remained emperor for the rest of his natural life.

Vespasian: A plaster cast of Vespasian in the Pushkin Museum, after an original held in the Louvre.

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