Roman Empire Senatvs PopvlvsQve Romanvs (SPQR) "The Senate and People of Rome" [nb 1]
← 27 BC–AD 476/1453 →   →
Vexillum with aquila and Roman state initialism
The Roman Empire at its greatest extent during the reign of Trajan in 117 AD.[1]
Capital	Rome was the sole political capital until AD 286 There were several political centres during the Tetrarchy while Rome continued to be the nominal, cultural, and ideological capital. Constantine re-founded and established the city of Constantinople as the new capital of the empire in 330.[2] Mediolanum (Milan) was its western counterpart during the increasingly frequent East/West divisions. The western imperial court was later relocated to Ravenna.
Language(s)	Latin - only official until 620 AD, Greek - official in the Eastern empire after 620 AD
Religion	Roman paganism - until 380 AD, Christianity - state religion after 380 AD
Government	Autocracy
Emperor
- 27 BC–AD 14	Augustus
- 378–395	Theodosius I
- 475–476 / 1449–1453	Romulus Augustus / Constantine XI
Legislature	Roman Senate
Historical era	Classical antiquity
- Battle of Actium	2 September 31 BC
- Octavian proclaimed Augustus	27 BC
- Diocletian splits Imperial administration between East and West	285
- Constantine the Great establishes Constantinople as a new imperial capital	330
- Death of Theodosius the Great, followed by permanent division of the Empire into eastern and western halves	395
- Deposition of Western Emperor Romulus Augustus/Fall of Constantinople *	AD 476/1453
Area
- 25 BC[3][4]	2,750,000 km2 (1,061,781 sq mi)
- 50[3]	4,200,000 km2 (1,621,629 sq mi)
- 117[3]	6,500,000 km2 (2,509,664 sq mi)
- 390 [3]	4,400,000 km2 (1,698,849 sq mi)
Population
- 25 BC[3][4] est.	56,800,000
Density	20.7 /km2  (53.5 /sq mi)
- 117[3] est.	88,000,000
Density	13.5 /km2  (35.1 /sq mi)
Currency	(a) 27 BC – AD 212: 1 gold aureus (1/40 lb. of gold, devalued to 1/50 lb. by 212) = 25 silver denarii = 100 bronze sesterces = 400 copper asses. (b) 294–312: 1 gold aureus solidus (1/60 lb. of gold) = 10 silver argentei = 40 bronze folles = 1,000 debased metal denarii (c) 312 onwards: 1 gold solidus (1/72 lb.) = 24 silver siliquae = 180 bronze folles
Today part of	Countries today  Albania  Algeria  Andorra  Armenia  Austria  Azerbaijan  Belgium  Bosnia and Herzegovina  Bulgaria  Croatia  Cyprus  Egypt  France  Georgia  Germany  Greece  Hungary  Iran  Iraq  Israel  Italy  Jordan  Kosovo[a]  Kuwait  Lebanon  Liechtenstein  Libya  Luxembourg  Macedonia  Malta  Moldova  Monaco  Montenegro  Morocco  Netherlands  Portugal  Palestinian Territories  Romania  Russia  San Marino  Saudi Arabia  Serbia  Slovenia  Spain  Switzerland  Syria  Tunisia  Turkey  United Kingdom  Ukraine
* These events marked the end of the Western Roman Empire (286–476)[5] and of the Eastern Roman Empire (330–1453), respectively.

The Roman Empire (Latin: IMPERIVM ROMANVM) was the post-Republican period of the ancient Roman civilization, characterised by an autocratic form of government and large territorial holdings in Europe and around the Mediterranean.^[6]

The 500-year-old Roman Republic, which preceded it, had been weakened and subverted through several civil wars.^{[nb 2]} Several events are commonly proposed to mark the transition from Republic to Empire, including Julius Caesar's appointment as perpetual dictator (44 BC), the Battle of Actium (2 September 31 BC), and the Roman Senate's granting to Octavian the honorific Augustus (16 January 27 BC).^{[nb 3]}

Roman expansion began in the days of the Republic, but the Empire reached its greatest extent under Emperor Trajan: during his reign (98 to 117 AD) the Roman Empire controlled approximately 6.5 million km^2[7] of land surface. Because of the Empire's vast extent and long endurance, the institutions and culture of Rome had a profound and lasting influence on the development of language, religion, architecture, philosophy, law, and forms of government in the territory it governed, particularly Europe, and by means of European expansionism throughout the modern world.

In the late 3rd century AD, Diocletian established the practice of dividing authority between four co-emperors (known as the tetrarchy) in order to better secure the vast territory, putting an end to the Crisis of the Third Century. During the following decades the Empire was often divided along an East/West axis. After the death of Theodosius I in 395 it was divided for the last time.^[8]

The crumbling Western Roman Empire ended in 476 when Romulus Augustus was forced to abdicate to the Germanic warlord Odoacer.^[9] The Eastern Roman or Byzantine Empire ended in 1453 with the death of Constantine XI and the capture of Constantinople by Mehmed II, leader of the Ottoman Turks.^[10]

Government[link]

Emperor[link]

The powers of an emperor (his imperium) existed, in theory at least, by virtue of his "tribunician powers" (potestas tribunicia) and his "proconsular powers" (imperium proconsulare).^[11] In theory, the tribunician powers (which were similar to those of the Plebeian Tribunes under the old republic) made the Emperor's person and office sacrosanct, and gave the Emperor authority over Rome's civil government, including the power to preside over and to control the Senate.^[12]

The proconsular powers (similar to those of military governors, or Proconsuls, under the old Republic) gave him authority over the Roman army. He was also given powers that, under the Republic, had been reserved for the Senate and the assemblies, including the right to declare war, to ratify treaties, and to negotiate with foreign leaders.^[13]

The emperor also had the authority to carry out a range of duties that had been performed by the censors, including the power to control Senate membership.^[14] In addition, the emperor controlled the religious institutions, since, as emperor, he was always Pontifex Maximus and a member of each of the four major priesthoods.^[13] While these distinctions were clearly defined during the early Empire, eventually they were lost, and the emperor's powers became less constitutional and more monarchical.^[15]

Realistically, the main support of an emperor's power and authority was the military. Being paid by the imperial treasury, the legionaries also swore an annual military oath of loyalty towards him, called the Sacramentum.^[16]

The death of an emperor led to a crucial period of uncertainty and crisis. In theory the Senate was entitled to choose the new emperor, but most emperors chose their own successors, usually a close family member. The new emperor had to seek a swift acknowledgement of his new status and authority in order to stabilize the political landscape. No emperor could hope to survive, much less to reign, without the allegiance and loyalty of the Praetorian Guard and of the legions. To secure their loyalty, several emperors paid the donativum, a monetary reward.

Senate[link]

The Curia Julia in the Roman Forum, the seat of the Senate

While the Roman assemblies continued to meet after the founding of the Empire, their powers were all transferred to the Roman Senate, and so senatorial decrees (senatus consulta) acquired the full force of law.^[17]

In theory, the Emperor and the Senate were two equal branches of government, but the actual authority of the Senate was negligible and it was largely a vehicle through which the Emperor disguised his autocratic powers under a cloak of republicanism. Although the Senate still commanded much prestige and respect, it was largely a glorified rubber stamp institution. Stripped of most of its powers, the Senate was largely at the Emperor's mercy.

Many emperors showed a certain degree of respect towards this ancient institution, while others were notorious for ridiculing it. During Senate meetings, the Emperor sat between the two consuls,^[18] and usually acted as the presiding officer. Higher ranking senators spoke before lower ranking senators, although the Emperor could speak at any time.^[18] By the 3rd century, the Senate had been reduced to a glorified municipal body.

Senators and equestrians[link]

No emperor could rule the Empire without the Senatorial order and the Equestrian order. Most of the more important posts and offices of the government were reserved for the members of these two aristocratic orders. It was from among their ranks that the provincial governors, legion commanders, and similar officials were chosen.

These two classes were hereditary^{[citation needed]} and mostly closed to outsiders. Very successful and favoured individuals could enter, but this was a rare occurrence. The career of a young aristocrat was influenced by his family connections and the favour of patrons. As important as ability, knowledge, skill, or competence, patronage was considered vital for a successful career and the highest posts and offices required the Emperor's favour and trust.

Senatorial order[link]

The son of a senator was expected to follow the Cursus honorum, a career ladder, and the more prestigious positions were restricted to senators only. A senator also had to be wealthy; one of the basic requirements was the wealth of 12,000 gold aurei^[19] (about 100 kg of gold), a figure which would later be raised with the passing of centuries.

Equestrian order[link]

Below the Senatorial order was the Equestrian order. The requirements and posts reserved for this class, while perhaps not so prestigious, were still very important. Some of the more vital posts, like the governorship of Egypt (Latin Aegyptus), were even forbidden to the members of the Senatorial order and available only to equestrians.^{[citation needed]}

Military[link]

The Roman empire^{[original research?]} under Hadrian (ruled 117–138) showing the location of the Roman legions deployed in AD 125.

Legions[link]

During and after the civil war, Octavian reduced the huge number of the legions (over 60)^[20] to a much more manageable and affordable size (28).^[20] Several legions, particularly those with doubtful loyalties, were simply disbanded. Other legions were amalgamated, a fact suggested by the title Gemina (Twin).^[20]

In AD 9, Germanic tribes wiped out three full legions in the Battle of the Teutoburg Forest. This disastrous event reduced the number of the legions to 25. The total of the legions would later be increased again and for the next 300 years always be a little above or below 30.^[21]

Augustus also created the Praetorian Guard: nine cohorts ostensibly to maintain the public peace which were garrisoned in Italy. Better paid than the legionaries, the Praetorians also served less time; instead of serving the standard 25 years of the legionaries, they retired after 16 years of service.^[22]

Auxilia[link]

While the auxilia (Latin: auxilia = supports) are not as famous as the legionaries, they were of major importance. Unlike the legionaries, the auxilia were recruited from among the non-citizens. Organized in smaller units of roughly cohort strength, they were paid less than the legionaries, and after 25 years of service were rewarded with Roman citizenship, also extended to their sons. According to Tacitus^[23] there were roughly as many auxiliaries as there were legionaries. Since at this time there were 25 legions of around 5,000 men each, the auxilia thus amounted to around 125,000 men, implying approximately 250 auxiliary regiments.^[24]

Navy[link]

The Roman navy (Latin: Classis, lit. "fleet") not only aided in the supply and transport of the legions, but also helped in the protection of the frontiers in the rivers Rhine and Danube. Another of its duties was the protection of the very important maritime trade routes against the threat of pirates. Therefore it patrolled the whole of the Mediterranean, parts of the North Atlantic (coasts of Hispania, Gaul, and Britannia), and had also a naval presence in the Black Sea. Nevertheless the army was considered the senior and more prestigious branch.^[25]

Provinces[link]

The Temple of Bacchus in Baalbec, Lebanon

Until the Tetrarchy (296 AD) Roman provinces (lat. provincae) were administrative and territorial units of the Roman Empire outside of Italy. In the old days of the Republic the governorships of the provinces were traditionally^[26] awarded to members of the Senatorial Order. Augustus' reforms changed this policy.

Imperial provinces[link]

Augustus created the Imperial provinces.^[26] Most, but not all, of the Imperial provinces were relatively recent conquests and located at the borders. Thereby the overwhelming majority of legions, which were stationed at the frontiers, were under direct Imperial control. Very important was the Imperial province of Egypt, the major breadbasket of the Empire, whose grain supply was vital to feed the masses in Rome. It was considered the personal fiefdom of the Emperor, and Senators were forbidden to even visit this province. The governor of Egypt and the commanders of any legion stationed there were not from the Senatorial Order, but were chosen by the Emperor from among the members of the lower Equestrian Order.

Senatorial provinces[link]

The old traditional policy continued largely unchanged in the Senatorial provinces. Due to their location, away from the borders, and to the fact that they were under longer Roman sovereignty and control, these provinces were largely peaceful and stable. Only a single legion was based in a Senatorial province: Legio III Augusta, stationed in the Senatorial province of Africa (modern northern Algeria).

The status of a province was subject to change; it could change from Senatorial towards Imperial, or vice-versa. This happened several times ^[26] during Augustus' reign. Another trend was to create new provinces, mostly by dividing older ones, or by expanding the Empire.

Religion[link]

The Pantheon, the present structure built during Hadrian's reign, was dedicated to the worship of all Roman deities.

As the Empire expanded, and came to include people from a variety of cultures, the worship of an ever increasing number of deities was tolerated and accepted. The Imperial government, and the Romans in general, tended to be very tolerant towards most religions and cults, so long as they did not cause trouble. This could easily be accepted by other faiths as Roman liturgy and ceremonies were frequently tailored to fit local culture and identity. Since the Romans practiced polytheism they were also able to easily assimilate the gods of the peoples the Empire conquered.^[27]

An individual could attend to both the Roman gods representing his Roman identity and his own personal faith, which was considered part of his personal identity. There were periodic persecutions of various religions at various points in time, most notably that of Christians. Most of the recorded histories of Christian persecutions come to us through the Christian church, which, according to historian Edward Gibbon, had an incentive to exaggerate the degree to which the persecutions occurred. Some non-Christian contemporary sources only mention the persecutions passingly and without assigning great importance to them.

Imperial cult[link]

The Augustus of Prima Porta, showing Augustus in military outfit holding a consular baton (now broken off)

In an effort to enhance loyalty, the inhabitants of the Empire were called to participate in the Imperial cult to revere (usually deceased) emperors as demigods. Few emperors claimed to be Gods while living, with the few exceptions being emperors who were widely regarded at the time to be insane (such as Caligula). Doing so in the early Empire would have risked revealing the shallowness of what the Emperor Augustus called the "restored Republic" and would have had a decidedly eastern quality to it. Since the tool was mostly one the Emperor used to control his subjects, its usefulness would have been greatest in the chaotic later Empire, when the emperors were often Christians and unwilling to participate in the practice.

Usually, an emperor was deified after his death by his successor in an attempt by that successor to enhance his own prestige. This practice can be misunderstood, however, since "deification" was to the ancient world what canonization is to the Christian world. Likewise, the term "god" had a different context in the ancient world. This could be seen during the years of the Roman Republic with religio-political practices such as the disbanding of a Senate session if it was believed the gods disapproved of the session or wished a particular vote. Deification was one of the many honors a dead emperor was entitled to, as the Romans (more than modern societies) placed great prestige on honors and national recognitions.

The importance of the Imperial cult slowly grew, reaching its peak during the Crisis of the Third Century. Especially in the eastern half of the Empire, imperial cults grew very popular. As such it was one of the major agents of romanization. The central elements of the cult complex were next to a temple; a theatre or amphitheatre for gladiator displays and other games and a public bath complex. Sometimes the imperial cult was added to the cults of an existing temple or celebrated in a special hall in the bath complex.

The seriousness of this belief is unclear. Some Romans ridiculed the notion that a Roman emperor was to be considered a living god, or would even make fun of the deification of an emperor after his death. Seneca the Younger parodied the notion of apotheosis in his only known satire The Pumpkinification of Claudius, in which the clumsy and ill-spoken Claudius is transformed not into a god, but a pumpkin or gourd. An element of mockery was present even at Claudius's funeral,^[28] and Vespasian's purported last words were Væ, puto deus fio, "Oh dear! I think I'm becoming a god!".^[29]

Absorption of foreign cults[link]

Since Roman religion did not have a core belief that excluded other religions, several foreign gods and cults became popular.

The worship of Cybele was the earliest, introduced from around 200 BC. Isis and Osiris were introduced from Egypt a century later. Bacchus and Sol Invictus were quite important and Mithras became very popular with the military. Several of these were Mystery cults. In the 1st century BC Julius Caesar granted Jews the freedom to worship in Rome as a reward for their help in Alexandria.

Controversial religions[link]

Druids[link]

Druids were considered as essentially non-Roman: a prescript of Augustus forbade Roman citizens to practice "druidical" rites. Pliny reports^[30] that under Tiberius the druids were suppressed—along with diviners and physicians—by a decree of the Senate, and Claudius forbade their rites completely in AD 54.^[31]

Judaism[link]

Preparation of an animal sacrifice; marble, fragment of an architectural relief, first quarter of the 2nd century AD; from Rome, Italy

While Judaism was largely accepted, as long as Jews paid the Jewish Tax after AD 70, there was anti-Judaism in the pre-Christian Roman Empire and there were several Jewish-Roman wars.

The Crisis under Caligula (AD 37–41) has been proposed as the "first open break between Rome and the Jews", even though problems were already evident during the Census of Quirinius in AD 6 and under Sejanus (before AD 31).^[32]

Until the rebellion in Judea in AD 66, Jews were generally protected. To get around Roman laws banning secret societies and to allow their freedom of worship, Julius Caesar declared Synagogues were colleges. Tiberius^[33] forbade Judaism in Rome but they quickly returned to their former protected status. Claudius expelled Jews from the city; however, the passage of Suetonius is ambiguous: "Because the Jews at Rome caused continuous disturbances at the instigation of Chrestus he [Claudius] expelled them from the city."^[31] Chrestus has been identified as another form of Christus; the disturbances may have been related to the arrival of the first Christians, and that the Roman authorities, failing to distinguish between the Jews and the early Christians, simply decided to expel them all.

Historians debate whether or not the Roman government distinguished between Christians and Jews prior to Nerva's modification of the Fiscus Judaicus in 96. From then on, practising Jews paid the tax; Christians did not.^[34]

Christianity[link]

The Christian Martyrs' Last Prayer, by Jean-Léon Gérôme (1883). Roman Colosseum.

Christianity emerged in Roman Judea as a Jewish religious sect in the 1st century AD. The religion gradually spread out of Jerusalem, initially establishing major bases in first Antioch, then Alexandria, and over time throughout the Empire as well as beyond.

For the first two centuries of the Christian era, Imperial authorities largely viewed Christianity simply as a Jewish sect rather than a distinct religion. No emperor issued general laws against the faith or its Church, and persecutions, such as they were, were carried out under the authority of local government officials.^[35] A surviving letter from Pliny the Younger, governor of Bythinia, to the Emperor Trajan describes his persecution and executions of Christians; Trajan notably responded that Pliny should not seek out Christians nor heed anonymous denunciations, but only punish open Christians who refused to recant.^[36]

Suetonius mentions in passing that during the reign of Nero "punishment was inflicted on the Christians, a class of men given to a new and mischievous superstition" (superstitionis novae ac maleficae).^[37] He gives no reason for the punishment. Tacitus reports that after the Great Fire of Rome in AD 64, some among the population held Nero responsible and that the emperor attempted to deflect blame onto the Christians.^[38]

One of the earliest persecutions occurred in Gaul at Lyon in 177. Persecution was often local and sporadic, and some Christians welcomed martyrdom as a testament of faith.^[39] The Decian persecution (246–251) was a serious threat to the Church, but while it potentially undermined the religious hierarchy in urban centers, ultimately it served to strengthen Christian defiance.^[40] Diocletian undertook what was to be the most severe and last major persecution of Christians, lasting from 303 to 311. Christianity had become too widespread to suppress, and in 313, the Edict of Milan made tolerance the official policy. Constantine I (sole ruler 324–337) became the first Christian emperor, and in 380 Theodosius I established Christianity as the official religion.

By the 5th century Christian hegemony had rapidly changed the Empire's identity even as the Western provinces collapsed.^[41] Those who practiced the traditional polytheistic religions were persecuted, as were Christians regarded as heretics by the authorities in power.

Languages[link]

A Roman marble sign in the Collegio degli Augustali in Herculaneum, Italy, with an honorary inscription in Latin.

The language of Rome before its expansion was Latin, and this became the empire's official language. By the time of the imperial period Latin had developed two registers: the "high" written Classical Latin and the "low" spoken Vulgar Latin. While Classical Latin remained relatively stable, even through the Middle Ages, Vulgar Latin as with any spoken language was fluid and evolving. Vulgar Latin became the lingua franca in the western provinces, later evolving into the modern Romance languages: Italian, French, Portuguese, Spanish, Romanian, etc. Greek and Classical Latin were the languages of literature, scholarship, and education.

Although Latin remained the most widely spoken language in the West, through to the fall of Rome and for some centuries afterwards, in the East the Greek language was the literary language and the lingua franca.^[42] The Romans generally did not attempt to supplant local languages. They generally left established customs in place and only gradually introduced typical Roman cultural elements including the Latin language.^[43] Along with Greek, many other languages of different tribes were used but almost without expression in writing.

Greek was already widely spoken in many cities in the east, and as such, the Romans were quite content to retain it as an administrative language there rather than impede bureaucratic efficiency. Hence, two official secretaries served in the Roman Imperial court, one charged with correspondence in Latin and the other with correspondence in Greek for the East.^[44] Thus in the Eastern Province, as with all provinces, original languages were retained.^[45][46]

A Latin inscription on a marble block at the theatre in Leptis Magna in the province of Africa, in present-day Libya.

Moreover, the process of hellenisation widened its scope during the Roman period, for the Romans perpetuated "Hellenistic" culture,^{[47][48][nb 4]} but with all the trappings of Roman improvements.^[49][50][51] This further spreading of "Hellenistic" culture (and therefore language) was largely due to the extensive infrastructure (in the form of entertainment, health, and education amenities, and extensive transportation networks, etc.) put in place by the Romans and their tolerance of, and inclusion of, other cultures, a characteristic which set them apart from the xenophobic nature of the Greeks preceding them.^[43]

Since the Roman annexation of Greece in 146 BC, the Greek language gradually obtained a unique place in the Roman world, owing initially to the large number of Greek slaves in Roman households.^[43] In Rome itself Greek became the second language of the educated elite.^[43][52] It became the common language in the early Church (as its major centers in the early Christian period were in the East), and the language of scholarship and the arts.

However, due to the presence of other widely spoken languages in the densely populated east, such as Coptic, Syriac, Armenian, Aramaic and Phoenician (which was also extensively spoken in North Africa), Greek never took as strong a hold beyond Asia Minor (some urban enclaves notwithstanding) as Latin eventually did in the west. This is partly evident in the extent to which the derivative languages are spoken today. Like Latin, the language gained a dual nature with the literary language, an Attic Greek variant, existing alongside spoken language, Koine Greek, which evolved into Medieval or Byzantine Greek (Romaic).^[53]

By the 4th century AD, Greek no longer held such dominance over Latin in the arts and sciences as it had previously, resulting to a great extent from the growth of the western provinces. This was true also of Christian literature, reflected, for example, in the publication in the early 5th century AD of the Vulgate Bible, the first officially accepted Latin Bible. As the Western Empire declined, the number of people who spoke both Greek and Latin declined as well, contributing greatly to the future East–West / Orthodox–Catholic cultural divide in Europe.

Important as both languages were, today the descendants of Latin are widely spoken in many parts of the world, while the Greek dialects are limited mostly to Greece, Cyprus, and small enclaves in Turkey and Southern Italy (where the Eastern Empire retained control for several more centuries). To some degree this can be attributed to the fact that the western provinces fell mainly to "Latinised" Christian tribes whereas the eastern provinces fell to Muslim Arabs and Turks for whom Greek held less cultural significance.

Culture[link]

Roman clad in a toga.

Life in the Roman Empire revolved around the city of Rome, and its famed seven hills. The city also had several theatres,^[54] gymnasia, and many taverns, baths and brothels. Throughout the territory under Rome's control, residential architecture ranged from very modest houses to country villas, and in the capital city of Rome, to the residences on the elegant Palatine Hill, from which the word "palace" is derived. The vast majority of the population lived in the city centre, packed into apartment blocks.

Most Roman towns and cities had a forum and temples, as did the city of Rome itself. Aqueducts were built to bring water to urban centres^[55] and served as an avenue to import wine and oil from abroad. Landlords generally resided in cities and their estates were left in the care of farm managers. To stimulate a higher labour productivity, many landlords freed a large numbers of slaves. By the time of Augustus, cultured Greek household slaves taught the Roman young (sometimes even the girls). Greek sculptures adorned Hellenistic landscape gardening on the Palatine or in the villas.

Many aspects of Roman culture were taken from the Etruscans and the Greeks.^[56] In architecture and sculpture, the difference between Greek models and Roman paintings are apparent. The chief Roman contributions to architecture were the arch and the dome.

Roman public baths (Thermae) in Bath, England (Aquae Sulis in the Roman province of Britannia).

The centre of the early social structure was the family,^[57] which was not only marked by blood relations but also by the legally constructed relation of patria potestas.^[58] The Pater familias was the absolute head of the family; he was the master over his wife, his children, the wives of his sons, the nephews, the slaves and the freedmen, disposing of them and of their goods at will, even putting them to death.^[59] Originally, only patrician aristocracy enjoyed the privilege of forming familial clans, or gens, as legal entities; later, in the wake of political struggles and warfare, clients were also enlisted. Thus, such plebian gentes were the first formed, imitating their patrician counterparts.^[60]

Slavery and slaves were part of the social order; there were slave markets where they could be bought and sold. Many slaves were freed by the masters for services rendered; some slaves could save money to buy their freedom. Generally mutilation and murder of slaves was prohibited by legislation. It is estimated that over 25% of the Roman population was enslaved.^[61][62] Professor Gerhard Rempel from the Western New England College claims that in the city of Rome alone, during the Empire, there were about 400,000 slaves.^[63]

The city of Rome had a place called the Campus Martius ("Field of Mars"), which was a sort of drill ground for Roman soldiers. Later, the Campus became Rome's track and field playground. In the campus, the youth assembled to play and exercise, which included jumping, wrestling, boxing and racing. Riding, throwing, and swimming were also preferred physical activities.^[64]

In the countryside, pastimes also included fishing and hunting. Board games played in Rome included Dice (Tesserae or Tali), Roman Chess (Latrunculi), Roman Checkers (Calculi), Tic-tac-toe (Terni Lapilli), and Ludus duodecim scriptorum and Tabula, predecessors of backgammon.^[64] There were several other activities to keep people engaged like chariot races, musical and theatrical performances,

Clothing, dining, and the arts[link]

Fresco of a Roman woman from Pompeii, c. AD 50.

Roman clothing fashions changed little from the late Republic to the end of the Western empire 600 years later.^[65] The cloth and the dress distinguished one class of people from the other class. The tunic worn by plebeians (common people) like shepherds and slaves was made from coarse and dark material, whereas the tunic worn by patricians was of linen or white wool.^[66] A magistrate would wear the tunica augusticlavi; senators wore a tunic with broad stripes, called tunica laticlavi. Military tunics were shorter than the ones worn by civilians. Boys, until the festival of Liberalia, wore the toga praetexta, which was a toga with a crimson or purple border. The toga virilis, (or toga pura) was worn by men over the age of 16 to signify their citizenship in Rome.^[67]

The toga picta was worn by triumphant generals and had embroidery of their skill on the battlefield. The toga pulla was worn when in mourning. Even footwear indicated a person's social status: patricians wore red and orange sandals, senators had brown footwear, consuls had white shoes, and soldiers wore heavy boots. Men typically wore a toga, and women a stola. The woman's stola looked different from a toga, and was usually brightly coloured. The Romans also invented socks for those soldiers required to fight on the northern frontiers, sometimes worn in sandals.^[67]

In the later empire after Diocletian's reforms, clothing worn by soldiers and non-military government bureaucrats became highly decorated, with woven or embroidered strips, clavi, and circular roundels, orbiculi, added to tunics and cloaks. These decorative elements usually consisted of geometrical patterns and stylised plant motifs, but could include human or animal figures.^[68] The use of silk also increased steadily and most courtiers of the later empire wore elaborate silk robes. Heavy military-style belts were worn by bureaucrats as well as soldiers, revealing the general militarization of late Roman government. Trousers—considered barbarous garments worn by Germans and Persians—were only adopted partially near the end of the empire in a sign for conservatives of cultural decay.^[69] Early medieval kings and aristocrats dressed like late Roman generals, not like the older toga-clad senatorial tradition.^[70]

Roman fresco with banquet scene from the Casa dei Casti Amanti (IX 12, 6-8) in Pompeii.

Romans had simple food habits. Staple food was simple, generally consumed at around 11 o'clock, and consisted of bread, salad, cheese, fruits, nuts, and cold meat left over from the dinner the night before. The Roman poet, Horace mentions another Roman favourite, the olive, in reference to his own diet, which he describes as very simple: "As for me, olives, endives, and smooth mallows provide sustenance."^[71] The family ate together, sitting on stools around a table. Fingers were used to eat solid foods and spoons were used for soups.

Wine was considered a staple drink,^[72] consumed at all meals and occasions by all classes and was quite cheap. Many types of drinks involving grapes and honey were consumed as well. Drinking on an empty stomach was regarded as boorish and a sure sign for alcoholism, whose debilitating physical and psychological effects were known to the Romans. An accurate accusation of being an alcoholic was an effective way to discredit political rivals.

Woman playing a kithara, a wall mural from Boscoreale, dated 40–30 BC

Roman literature was from its very inception influenced heavily by Greek authors. Some of the earliest works we possess are of historical epics telling the early military history of Rome. As the empire expanded, authors began to produce poetry, comedy, history, and tragedy. Virgil represents the pinnacle of Roman epic poetry. His Aeneid tells the story of flight of Aeneas from Troy and his settlement of the city that would become Rome. The genre of satire was common in Rome, and satires were written by, among others, Juvenal^[73] and Persius. Many Roman homes were decorated with landscapes by Greek artists. Portrait sculpture^[74] during the period utilized youthful and classical proportions, evolving later into a mixture of realism and idealism. Advancements were also made in relief sculptures, often depicting Roman victories.

Music was a major part of everyday life. The word itself derives from Greek μουσική (mousike), "(art) of the Muses".^[75] Many private and public events were accompanied by music, ranging from nightly dining to military parades and maneuvers. In a discussion of any ancient music, however, non-specialists and even many musicians have to be reminded that much of what makes our modern music familiar to us is the result of developments only within the last 1,000 years; thus, our ideas of melody, scales, harmony, and even the instruments we use would not be familiar to Romans who made and listened to music many centuries earlier.

Over time, Roman architecture was modified as their urban requirements changed, and the civil engineering and building construction technology became developed and refined. The Roman concrete has remained a riddle, and even after more than 2,000 years some Roman structures still stand magnificently.^[76] The architectural style of the capital city was emulated by other urban centres under Roman control and influence.

Education[link]

Following various military conquests in the Greek East, Romans adapted a number of Greek educational precepts to their own system.^[77] Home was often the learning centre, where children were taught Roman law, customs, and physical training to prepare the boys for eventual recruitment into the Roman army. Conforming to discipline was a point of great emphasis. Girls generally received instruction^[78] from their mothers in the art of spinning, weaving, and sewing.

Education nominally began at the age of six. During the next six to seven years, both boys and girls were taught the basics of reading, writing and arithmetic. From the age of twelve, they would be learning Latin, Greek, grammar and literature, followed by training for public speaking. Oratory was an art to be practised and learnt, and good orators commanded respect. To become an effective orator was one of the objectives of education and learning. In some cases, services of gifted slaves were utilized for imparting education.^[78]

Economy[link]

Industry[link]

The invention and widespread application of hydraulic mining, namely hushing and ground-sluicing, aided by the ability of the Romans to plan and execute mining operations on a large scale, allowed various base and precious metals to be extracted on a proto-industrial scale.^[79]

The annual total iron output is estimated at 82,500 t,^[80] assuming a productive capacity of c. 1.5 kg per capita.^[81] Copper was produced at an annual rate of 15,000 t,^[82] and lead at 80,000 t,^[83] both production levels not to be paralled until the Industrial Revolution;^[84] Spain alone had a 40% share in world lead production.^[85] The high lead output was a by-product of extensive silver mining which reached an amount of 200 t per annum.^[86] At its peak around the mid-2nd century AD, the Roman silver stock is estimated at 10,000 t, five to ten times larger than the combined silver mass of medieval Europe and the Caliphate around 800 AD.^[87] Any one of the Imperium's most important mining provinces produced as much silver as the contemporary Han empire as a whole, and more gold by an entire order of magnitude.^[88]

The high amount of metal coinage in circulation meant that more coined money was available for trading or saving in the economy (monetization).^[89]

Currency[link]

A Roman aureus struck under Augustus, c. AD 13–14; the reverse shows Tiberius riding on a quadriga, celebrating the fifteenth renewal of his tribunal power.

The imperial government was, as all governments, interested in the issue and control of the currency in circulation. To mint coins was an important political act: the image of the ruling emperor appeared on most issues, and coins were a means of showing his image throughout the empire. Also featured were predecessors, empresses, other family members, and heirs apparent. By issuing coins with the image of an heir his legitimacy and future succession was proclaimed and reinforced. Political messages and imperial propaganda such as proclamations of victory and acknowledgements of loyalty also appeared in certain issues.

Legally only the emperor and the Senate had the authority to mint coins inside the empire.^[90] However the authority of the Senate was mainly in name only. In general, the imperial government issued gold and silver coins while the Senate issued bronze coins marked by the legend "SC", short for Senatus Consulto "by decree of the Senate". However, bronze coinage could be struck without this legend. Some Greek cities were allowed to mint^[91] bronze and certain silver coins, which today are known as Greek Imperials (also Roman Colonials or Roman Provincials). The imperial mints were under the control of a chief financial minister, and the provincial mints were under the control of the imperial provincial procurators. The Senatorial mints were governed by officials of the Senatorial treasury.

GDP[link]

In recent years, economic historians have turned their attention to the size and structure of the Roman economy.^[92]

¹⁾ Decimal fractions rounded to the nearest tenth. Cursive numbers not directly given by the authors; they are obtained by multiplying the respective value of GDP per capita by estimated population size.

Italia is considered the richest region, due to tax transfers from the provinces and the concentration of elite income in the heartland; its GDP per capita is estimated at having been around 40%^[99] to 66%^[100] higher than in the rest of the empire.

Demography[link]

In recent years, questions relating to ancient demographics have received increasingly more scholarly attention,^[101] with estimates of the population size of the Roman empire at its demographic peak now varying between 60 and 70 million ("low count") and over 100 million ("high count").^[102] Adhering to the more traditional value of 55 million inhabitants, the Roman Empire constituted the most populous Western political unity until the mid-19th century and remained unsurpassed on a global scale through the first millennium.^[103]

History[link]

The Battle of Actium, by Lorenzo A. Castro, 1672

Augustus (27 BC–AD 14)[link]

Octavian, the grandnephew and heir of Julius Caesar, had made himself a central military figure during the chaotic period following Caesar's assassination. In 43 BC at the age of twenty he held his first consulship and became one of the three members of the Second Triumvirate, a political alliance with Lepidus, and Mark Antony. In 36 BC, he was given the power of a Plebeian Tribune, which gave him veto power over the Senate and the ability to control the Plebeian Council, the principal legislative assembly. These powers made himself and his position sacrosanct. The triumvirate ended in 32 BC, torn apart by the competing ambitions of its members: Lepidus was forced into exile and Antony, who had allied himself with his lover Queen Cleopatra VII of Egypt, committed suicide in 30 BC following his defeat at the Battle of Actium (31 BC) by the fleet of Octavian commanded by his general Agrippa. Octavian subsequently annexed Egypt to the empire.

Now sole ruler of Rome, Octavian began a full-scale reformation of military, fiscal and political matters. In 29 BC, he was given the authority of a Roman Censor and thus the power to appoint new senators.^[104] The senate also granted him a unique grade of Proconsular imperium, giving him authority over all proconsuls, the military governors of the Empire.^[105] The powers had he now secured for himself were in effect those that his predecessor Julius Caesar had secured for himself years earlier as Roman Dictator. The provinces at the frontiers where the vast majority of legions were stationed, newly classified as imperial provinces, were now under the control of Octavian. The peaceful provinces were given to the authority of the Senate and were classified as senatorial provinces. The legions, which had reached an unprecedented number of around fifty because of the civil wars, were concentrated and reduced to twenty-eight. Octavian also created nine special cohorts to maintain peace in Italy, keeping at least three stationed in Rome. The cohorts in the capital became known as the Praetorian Guard.

Roman theatre of Bosra in the province of Arabia, present-day Syria.

In 27 BC, Octavian offered to transfer control of the state back to the senate.^[104] The Senate refused the offer, which in effect was a ratification of his position within the state. Octavian was also granted the title of "Augustus" by the Senate,^[106] and took the title of Princeps or "first citizen".^[105] As the adopted heir of Julius Caesar, Octavian, now referred to as "Augustus", took Caesar as a component of his name. By the time of the reign of Vespasian, the term Caesar had evolved from a family name into a formal title.

Augustus completed the conquest of Hispania, while subordinate generals expanded Roman possessions in Africa and Asia Minor. Augustus' final task was to ensure an orderly succession of his powers. His greatest general and stepson Tiberius had conquered Pannonia, Dalmatia, Raetia, and temporarily Germania for the Empire, and was thus a prime candidate. In 6 BC, Augustus granted tribunician powers to his stepson,^[107] and soon after he recognized Tiberius as his heir. In 13 AD, a law was passed which extended Augustus' powers over the provinces to Tiberius,^[108] so that Tiberius' legal powers were equivalent to, and independent from, those of Augustus.^[108] In 14 AD Augustus died at the age of seventy-five, having ruled the empire for forty years.

Tiberius to Alexander Severus (14–235)[link]

The Roman Empire in 210 AD during the reign of Septimius Severus.

Augustus was succeeded by his stepson Tiberius, the son of his wife Livia from her first marriage. Augustus was a scion of the gens Julia (the Julian family), one of the most ancient patrician clans of Rome, while Tiberius was a scion of the gens Claudia. Their three immediate successors were all descended from the gens Claudia, through Tiberius's brother Nero Claudius Drusus. They also descended from the gens Julia, emperors Caligula and Nero through Julia the Elder, Augustus's daughter from his first marriage, and emperor Claudius through Augustus's sister Octavia Minor. Historians refer to their dynasty as the "Julio-Claudian Dynasty".

The early years of Tiberius's reign were relatively peaceful. However, his rule soon became characterised by paranoia. He began a series of treason trials and executions, which continued until his death in 37. The logical successor to the much hated Tiberius was his 24-year-old grandnephew Caligula. Caligula's reign began well, but after an illness he became tyrannical and insane. In 41 Caligula was assassinated, and for two days following his assassination, the senate debated the merits of restoring the Republic.^[109]

Vespasian commissioned the Colosseum in Rome.

Due to the demands of the army, however, Claudius was ultimately declared emperor. Claudius was neither paranoid like his uncle Tiberius, nor insane like his nephew Caligula, and was therefore able to administer the Empire with reasonable ability. In his own family life he was less successful, as he married his niece, who may very well have poisoned him in 54. Nero, who succeeded Claudius, focused much of his attention on diplomacy, trade, and increasing the cultural capital of the Empire. Nero, though, is remembered as a tyrant, and was forced to commit suicide in 68.

Nero was followed by a brief period of civil war, known as the "Year of the Four Emperors". Augustus had established a standing army, where individual soldiers served under the same military governors over an extended period of time. The consequence was that the soldiers in the provinces developed a degree of loyalty to their commanders, which they did not have for the emperor. Thus the Empire was, in a sense, a union of inchoate principalities, which could have disintegrated at any time.^[110] Between June 68 and December 69, Rome witnessed the successive rise and fall of Galba, Otho and Vitellius until the final accession of Vespasian, first ruler of the Flavian dynasty. These events showed that any successful general could legitimately claim a right to the throne.^[111]

The Roman aqueduct bridge to Tarraco in the province of Hispania Tarraconensis, modern-day Spain.

Vespasian, though a successful emperor, continued the weakening of the Senate which had been going on since the reign of Tiberius. Through his sound fiscal policy, he was able to build up a surplus in the treasury, and began construction on the Colosseum. Titus, Vespasian's successor, quickly proved his merit, although his short reign was marked by disaster, including the eruption of Mount Vesuvius in Pompeii. He held the opening ceremonies in the still unfinished Colosseum, but died in 81. His brother Domitian succeeded him. Having exceedingly poor relations with the Senate, Domitian was murdered in September 96.

The next century came to be known as the period of the "Five Good Emperors", in which the successions were peaceful and the Empire was prosperous. Each emperor of this period was adopted by his predecessor. The last two of the "Five Good Emperors" and Commodus are also called Antonines. After his accession, Nerva, who succeeded Domitian, set a new tone: he restored much confiscated property and involved the Senate in his rule.

Starting with 101 Trajan undertook two military campaigns against the gold rich Dacia, which he finally conquered in 106 (see Trajan's Dacian Wars). In 112, Trajan marched on Armenia and annexed it to the Roman Empire. Then he turned south into Parthia, taking several cities before declaring Mesopotamia a new province of the Empire, and lamenting that he was too old to follow in the steps of Alexander the Great. During his rule, the Roman Empire expanded to its largest extent, and would never again advance so far to the east. Hadrian's reign was marked by a general lack of major military conflicts, but he had to defend the vast territories that Trajan had acquired.

Antoninus Pius's reign was comparatively peaceful. During the reign of Marcus Aurelius, Germanic tribes launched many raids along the northern border. The period of the "Five Good Emperors" also commonly described as the Pax Romana, or "Roman Peace" was brought to an end by the reign of Commodus. Commodus was the son of Marcus Aurelius, breaking the scheme of adoptive successors that had turned out so well. Commodus became paranoid and slipped into insanity before being murdered in 192.

Third-century Roman soldiers battling Gothic troops, as depicted on a contemporary Roman sarcophagus, c. 250 AD (National Museum of Rome, Rome).

The Severan Dynasty, which lasted from 193 until 235, included several increasingly troubled reigns. A generally successful ruler, Septimius Severus, the first of the dynasty, cultivated the army's support and substituted equestrian officers for senators in key administrative positions. His son, Caracalla, extended full Roman citizenship to all free inhabitants of the Empire. Increasingly unstable and autocratic, Caracalla was assassinated by Macrinus, who succeeded him, before being killed and succeeded by Elagabalus. Alexander Severus, the last of the dynasty, was increasingly unable to control the army, and was assassinated in 235.

Crisis of the Third Century and the later emperors (235–395)[link]

The Crisis of the Third Century is a commonly applied name for the near-collapse of the Roman Empire between 235 and 284. During this time, 25 emperors reigned, and the empire experienced extreme military, political, and economic crises. Additionally, in 251, the Plague of Cyprian broke out, causing large-scale mortality which may have seriously affected the ability of the Empire to defend itself.^[112] This period ended with the accession of Diocletian, who reigned from 284 until 305, and who solved many of the acute problems experienced during this crisis.

However, the core problems would remain and cause the eventual destruction of the western empire. Diocletian saw the vast empire as ungovernable, and therefore split the Roman Empire in half and created two equal emperors to rule under the title of Augustus. In doing so, he effectively created what would become the Western Roman Empire and the Eastern Roman Empire. In 293 authority was further divided, as each Augustus took a junior Emperor called a Caesar to provide a line of succession. This constituted what is now known as the Tetrarchy ("rule of four"). The transitions of this period mark the beginnings of Late Antiquity.

The Tetrarchy effectively collapsed with the death of Constantius Chlorus, the first of the Constantinian dynasty, in 306. Constantius's troops immediately proclaimed his son Constantine the Great as Augustus. A series of civil wars broke out, which ended with the entire empire being united under Constantine, who legalised Christianity definitively in 313 through the Edict of Milan.

The Roman Empire in 337 AD during the reign of Constantine the Great.

In 361, after further episodes of civil war, Julian became emperor. His edict of toleration in 362 ordered the reopening of pagan temples, and, more problematically for the Christian Church, the recalling of previously exiled Christian bishops. Julian eventually resumed the war against Shapur II of Persia, although he received a mortal wound in battle and died in 363. His officers then elected Jovian as emperor. Jovian ceded territories won from the Persians as far back as Trajan's time, and restored the privileges of Christianity, before dying in 364.

The Tetrarchs, a porphyry sculpture sacked from a Byzantine palace in 1204, Treasury of St Mark's, Venice

Upon Jovian's death, Valentinian I, the first of the Valentinian dynasty, was elected Augustus, and chose his brother Valens to serve as his co-emperor. In 365, Procopius managed to bribe two legions, who then proclaimed him Augustus. War between the two rival Eastern Roman Emperors continued until Procopius was defeated, although in 367, eight-year-old Gratian was proclaimed emperor by the other two. In 375 Valentinian I led his army in a campaign against a Germanic tribe, but died shortly thereafter. Succession did not go as planned. Gratian was then a 16-year-old and arguably ready to act as Emperor, but the troops proclaimed his infant half-brother emperor under the title Valentinian II, and Gratian acquiesced.

Meanwhile, the Eastern Roman Empire faced its own problems with Germanic tribes. One tribe fled their former lands and sought refuge in the Eastern Roman Empire. Valens let them settle on the southern bank of the Danube in 376, but they soon revolted against their Roman hosts. Valens personally led a campaign against them in 378. However this campaign proved disastrous for the Romans. The two armies approached each other near Adrianople, but Valens was apparently overconfident of the numerical superiority of his own forces over the enemy. Valens, eager to have all of the glory for himself, rushed into battle, and on 9 August 378, the Battle of Adrianople resulted in a crushing defeat for the Romans, and the death of Valens.

Contemporary historian Ammianus Marcellinus estimated that two-thirds of the Roman soldiers on the field were lost in the battle. The battle had far-reaching consequences, as veteran soldiers and valuable administrators were among the heavy casualties, which left the Empire with the problem of finding suitable leadership. Gratian was now effectively responsible for the whole of the Empire. He sought however a replacement Augustus for the Eastern Roman Empire, and in 379 chose Theodosius I.

Theodosius, the founder of the Theodosian dynasty, proclaimed his five-year-old son Arcadius an Augustus in 383 in an attempt to secure succession. Hispanic Celt general Magnus Maximus, stationed in Roman Britain, was proclaimed Augustus by his troops in 383 and rebelled against Gratian when he invaded Gaul. Gratian fled, but was assassinated. Following Gratian's death, Maximus had to deal with Valentinian II, at the time only twelve years old, as the senior Augustus. Maximus soon entered negotiations with Valentinian II and Theodosius, attempting and ultimately failing to gain their official recognition. Theodosius campaigned west in 388 and was victorious against Maximus, who was captured and executed. In 392 Valentinian II was murdered, and shortly thereafter Arbogast arranged for the appointment of Eugenius as emperor.

The eastern emperor Theodosius I refused to recognise Eugenius as emperor and invaded the West again, defeating and killing Arbogast and Eugenius. He thus reunited the entire Roman Empire under his rule. Theodosius was the last Emperor who ruled over the whole Empire. As emperor, he made Christianity the official religion of the Roman Empire. After his death in 395, he gave the two halves of the Empire to his two sons Arcadius and Honorius. The Roman state would continue to have two different emperors with different seats of power throughout the 5th century, though the Eastern Romans considered themselves Roman in full. The two halves were nominally, culturally and historically, if not politically, the same state.

Decline of the Western Roman Empire (395–476)[link]

Barbarian invasions of the Roman Empire (simplified), showing the Battle of Adrianople

The Roman Empire in 460 during the reigns of Majorian (west) and Leo I (east).

After 395, the emperors in the Western Roman Empire were usually figureheads, while the actual rulers were military strongmen. In 475 Orestes had revolted against Emperor Julius Nepos, causing him to flee to Dalmatia. Orestes then proclaimed his own son Romulus Augustus to be emperor, but could not get sanction from the Eastern Empire nor homage from scattered remnants of the Western Empire outside Italy (which was under his immediate military control.) A few months later, in 476 Orestes refused to honor his promises to the Foederati, (Germanic mercenaries in the service of the empire) who had supported his revolt against Nepos, for lands in Italy. The dissatisfied mercenaries, led by Odoacer, revolted, killing Orestes and removing Romulus Augustus. Odoacer ruled Italy as a king and refused imperial titulature, so the year 476 is generally used to mark the end of the Western Roman Empire.

Odoacer quickly conquered the remaining provinces of Italy, and was greeted as a liberator by the Roman Senate. Eastern Roman Emperor Zeno. Zeno soon received two deputations. One was from the Senate returned the Imperial regalia and requested that the division of the empire be formally abolished and Zeno reign alone, and endorsing Odoacer's governance of Italy. The second deputation was from Nepos, asking for military support to regain control of the Italian Peninsula. Zeno declined to abolish the Western Empire, but acceded to the requests to legitimize Odoacer's, nameing him patrician. He urged the Odoacer and the Senate, however, to recognize Nepo's authority and invite him to return to Italy. Nepos was not invited back, but Odoacer was careful to observe the formalities of the exiled emperor's titular status, often invoking his name and even minting coins with his image. Upon Nepos' death in 480, Zeno claimed Dalmatia for the East, but Odoacer, claiming his duty as vassal to arrest and punish the killers of the Western Emperor, invaded and took control of the country. He also did try and execute the assassins. When Odoacer supported the revolt of Illus and Leonitus (484-488), Zeno responded by declaring his own menacing ally Theodoric the Great, Ostrogoths, to be King of Italy. Theodoric invaded, crushed Odoacer, and took possession of Italy in 489.

The Empire became gradually less Romanised and increasingly Germanic in nature: although the Empire buckled under Visigothic assault, the overthrow of the last Emperor Romulus Augustus was carried out by federated Germanic troops from within the Roman army rather than by foreign troops. In this sense had Odoacer not renounced the title of Emperor and named himself "King of Italy" instead, the Empire might have continued in name. Its identity, however, was no longer Roman—it was increasingly populated and governed by Germanic peoples long before 476.

The Roman people were by the 5th century "bereft of their military ethos"^[113] and the Roman army itself a mere supplement to federated troops of Goths, Huns, Franks and others fighting on their behalf. Many theories have been advanced in explanation of the decline of the Roman Empire, and many dates given for its fall, from the onset of its decline in the 3rd century^[114] to the fall of Constantinople in 1453.^[115]

Militarily, however, the Empire finally fell after first being overrun by various non-Roman peoples and then having its heart in Italy seized by Germanic troops in a revolt. The historicity and exact dates are uncertain, and some historians do not consider that the Empire fell at this point. Disagreement persists since the decline of the Empire had been a long and gradual process rather than a single event.

The Huns, a nomadic Mongoloid people from the steppes of central Eurasia, may have stimulated the barbarian invasions, a contributing factor in the collapse of the western Roman Empire.

Eastern Roman Empire (476–1453)[link]

The entry of Turkish sultan Mehmed II into Constantinople

As the Western Roman Empire declined during the 5th century, the richer Eastern Roman Empire would be relieved of much destruction, and in the mid 6th century the Eastern Roman Empire (generally today called the Byzantine Empire) under the emperor Justinian I reconquered Italy and parts of Illyria from the Ostrogoths, North Africa from the Vandals, and southern Hispania from the Visigoths. The reconquest of southern Hispania was somewhat ephemeral, but North Africa served the Byzantines for another century, parts of Italy for another five centuries, and parts of Illyria even longer.

Of the many accepted dates for the end of the classical Roman state, the latest is 610. This is when the Emperor Heraclius made sweeping reforms, forever changing the face of the empire. Greek was readopted as the language of government and Latin influence waned. By 610, the Eastern Roman Empire had come under definite Greek influence, and could be considered to have become what many modern historians now call the Byzantine Empire. However, the Empire was never called thus by its inhabitants, who used terms such as Romania, Basileia Romaion or Pragmata Romaion, meaning "Land of the Romans" or "Kingdom of the Romans", and who still saw themselves as Romans, and their state as the rightful continuation of the ancient empire of Rome.

During the Muslim conquests in the 7th century, the Empire lost its possessions in Africa and the Levant to the Arab-Islamic Caliphate, reducing Byzantine lands to Anatolia, the Balkans and southern Italy. The sack of Constantinople at the hands of the Fourth Crusade in 1204 is sometimes used to date the end of Eastern Roman Empire: the destruction of Constantinople and most of its ancient treasures, total discontinuity of leadership, and the division of its lands into rival states with a Catholic-controlled "Emperor" in Constantinople itself was a blow from which the Empire never fully recovered.

Nevertheless, the Byzantines recovered Constantinople itself and reestablished the Empire in 1261, and continued to call themselves Romans until their fall to the Ottoman Turks in 1453. That year the eastern part of the Roman Empire was ultimately ended by the Fall of Constantinople. Even though Mehmed II, the conqueror of Constantinople, declared himself the Emperor of the Roman Empire (Caesar of Rome / Kayser-i Rum), and even though this capture was in some ways far less catastrophic than the sack, Constantine XI is usually considered the last Roman Emperor. The Greek ethnic self-descriptive name "Rhomios" (Roman) survives to this day.

Military history[link]

Principate (27 BC–AD 235)[link]