The Late Empire and Christianity

Rome underwent half a century of crisis in the middle of the third century CE.  Beset along its borders and hobbled by constant infighting, the empire was at real risk of collapse for decades.  It did not collapse, however, and in fact enjoyed a resurgence of a sort that held the Roman state together until the end of the fifth century (the western half of the Empire “fell” in 476 CE).

Major crises affected the Empire from 235 to 284 CE. The basis of the crises was increasing pressure from foreign invaders on the Roman borders coupled with political instability within the Empire itself.  The emperor Severus Alexander was murdered in 235 CE.  All of the emperors to follow for the next fifty years were murdered or died in battle as well, save one; there were twenty-six emperors in those fifty years, and only one died of natural causes.  Many emperors stayed on the throne for only a few months before they were killed. Not surprisingly, in this environment, most emperors were only concerned with either seizing the throne or staying alive once they had it, meaning they tended to neglect everything important to the stability of the Empire.

Rome’s internal political problems were somewhat of its own making – the Praetorian Guard auctioned off the throne, would-be emperors eagerly assassinated their rivals, and Roman elites largely retreated to their enormous estates to profit off of their serfs.  Other factors, however, were external: Rome’s international environment grew much worse.  In 220 BCE, a new clan – the Sasanians – seized control of Persia.  The Sasanians were much more aggressive and well-organized than the earlier Parthian dynasty had been, and Rome was obliged to fight almost constant wars to contain the Persian threat.

Praetorian guards
Praetorian guards

Simultaneously, the Germanic groups along Rome’s northern borders were growing larger and better-organized. Centuries of contact with Rome itself had improved agricultural techniques among the Germans, leading to population growth.  Eventually, these larger, wealthier groups joined together into forces that posed serious threats to the Roman borders.

As the quality of Roman leadership declined and the threats grew worse, the results were predictable: Rome lost battles and territory. The emperor Valerian was captured by the Persian king Shapur I when he led a Roman army against Persia and, according to some accounts, was used as the Persian king’s personal footstool for climbing up onto his horse.  Another emperor rebuilt walls around Rome itself in 270 CE because of the threat of Germanic invaders from the north, who had pushed all the way into northern Italy.



The period of crisis that had made the eastern empire so vulnerable to Persian invasion ended with the ascension of the emperor Diocletian in 284 CE. Diocletian not only managed to survive for twenty years after taking the throne, he also reorganized the empire and pulled it back from the brink. Recognizing that the sheer size of the empire was a detriment to its effective governance, Diocletian decided to share power with a co-emperor: Diocletian ruled the eastern half of the empire and his co-emperor Maximian ruled the west.

Then, about ten years after he took the throne, Diocletian decided to further divide responsibility and each emperor took on a junior emperor. This created the Tetrarchy, the rule of four. Diocletian further subdivided the empire, so that for the rest of his reign, the four co-emperors (two “augusti” and two “caesars”) worked together to administer the entire territory.

Map of the Roman Empire under the tetrarchy, showing the dioceses and the four tetrarchs' zones of influence
Map of the Roman Empire under the tetrarchy, showing the dioceses and the four tetrarchs’ zones of influence

Diocletian’s hope was that the tetrarchy would end the cycle of assassinations.  The junior emperors were the senior emperors’ respective heirs, destined to assume full power when their seniors stepped down.  When that happened, each new senior emperor would then select new juniors. The overall effect was, if it worked, a neat succession of power instead of the constant bloodshed and uncertainty that had haunted Roman politics for half a century; this system was quite similar to the merit-based selection process of emperors that had held during the rule of the Five Good Emperors.

Diocletian also divided the Empire into smaller provinces so that governors had an easier time with administration. These provinces were grouped into larger units called dioceses overseen by an official called a “vicar.”  When Christianity moved from being an illegal cult to the official religion of the empire (see below), the division of imperial territory into dioceses, overseen by vicars, would be adopted by the Catholic Church.  That practice persists all the way to the present in the administration of the Church.

Diocletian tried to reinstate religious orthodoxy. He believed that too many people had turned away from worship of the Roman gods, which had in turn brought about the long period of crisis preceding his takeover.   Thus, he went after sects that he thought threatened stability, including Christianity. He banned Christian worship and executed several thousand Christians who refused to renounce their beliefs in an attempt to wipe them out once and for all.  Needless to say, this was a spectacular failure.

Diocletian retired in 305 CE due to failing health, as did (reluctantly) his co-emperor in the west. The idea behind the Tetrarchy was that the junior emperors would then become the senior emperors and recruit new juniors – this system worked exactly once, as the junior emperors under Diocletian and Maximian took power. 

Diocletian retired to what is now known as Croatia. This is what his palace looked like. You can visit the ruins. Click the illustration to visit Wikipedia and see modern pictures of the palace.

Instead of a smooth transition inaugurating a stable new beginning, however, the Empire was yet again plunged into civil war.  A general (at the time stationed in Britain) named Constantine, son of the Tetrarch Constantius, launched a military campaign to reunite Rome under his sole rule. By 312 CE he had succeeded, claiming total control and appointing no co-emperor.


Constantine did away with the system of co-emperors (although it would re-emerge after his death), but otherwise he left things as they had been under Diocletian’s reforms. The eastern and western halves of the Empire still had separate administrations, and he kept up the size and organization of the army. He also took a decisive step toward stabilizing the economy by issuing new currency based on a fixed gold standard. The new coin, the solidus, was to be the standard international currency of the western world for 800 years.


Constantine’s greatest historical impact, however, was in the realm of religion.  He was the first Christian emperor, something that had an enormous effect on the history of Europe and, ultimately, the world. Before his climactic battle in 312 CE to defeat his last rival to the imperial throne, Constantine had a vision that he claimed was sent by the Christian God, promising him victory if he converted to Christianity.  There are plenty of theories about a more cynical explanation for his conversion (most revolving around the fact that Constantine went on to plunder the temples of the old Roman gods), but regardless of the fact that he used his conversion to help himself to the wealth of “pagan” temples, he actively supported Christian institutions and empowered Christian officials.  Ultimately, his sponsorship of Christianity saw it expand dramatically in his lifetime.

In 324 CE, Constantine founded a new capital for the entire empire at the site of the ancient Greek town of Byzantium, at the intersection of Europe and Anatolia (he renamed it “Constatine’s City,” Constantinople, which is today Istanbul. It was at the juncture of the eastern and western halves of the Empire, with all trade routes between Asia and Europe passing through its area of influence.

It became the heart of wealth and power in the Empire and a Christian “new beginning” for Roman civilization itself.  The city grew to become one of the great cities of late antiquity and the Middle Ages, fed by grain from Egypt and bringing in enormous wealth through trade. Subsequent emperors also built up massive fortifications, walls so strong that it took 1,000 years for an enemy to be able to breach them (namely the Ottoman Turks, who finally conquered the city in 1453 CE).

How Constantine’s Conversion Changed Things

Before Constantine’s conversion, Christianity expanded through missionary work, which succeeded in founding congregations across the Empire but did not seriously disrupt polytheism or the Empire’s religious diversity. Imperial sponsorship changed that because it linked secular power to Christian identity.  Following Constantine’s conversion, being a Christian became a way to get ahead in the Roman power structure, and over time it became a liability to remain a polytheist.  Thus, whereas early Christianity had been a religion of the common people, Roman elites flocked to convert after Constantine did so in order to stay in the emperor’s good graces.

Almost immediately after Constantine became a Christian, bishops (the head of each city’s congregation), saw their secular power increase dramatically. Bishops were the head of each city’s congregation, and they supervised a staff of priests and deacons who interacted with everyday worshipers and led services. The bishops of main cities, usually the imperial capitals of their respective provinces, came to be called an archbishop.

The Roman Archbishop Became Known as the Pope

The most important bishop was the archbishop of Rome, who for the first few centuries of Christianity was just one among several major church leaders.  Originally, the archbishops of cities like Alexandria and Damascus were of comparable importance to the Roman archbishop, but over time Roman archbishops tried to assert authority over the entire church hierarchy in the west.  Their authority, however, was not recognized in much of the eastern part of the Empire, and it should be emphasized that it took more than six centuries after Constantine for the Roman archbishop’s authority to receive acceptance even in the west.  Eventually, however, that authority was at least nominally in place, and the Roman archbishop came to be known as the “pope,” meaning simply “father,” of the church.

The pope’s role as leader of the church emerged for a few reasons. First and foremost, the symbolic power of the city of Rome itself gave added weight to the Roman archbishop’s authority.  Second, there was a doctrinal tie to the Apostle Peter, who was supposed to have been given the symbolic keys to heaven directly from Christ, which were in turn passed on to his successor in Rome (the archbishop of Rome) before being crucified.  Roman archbishops could thus argue that the Christian church itself was centered in Rome, and that they inherited the spiritual keys to heaven upon taking office – this concept was known as the “Petrine Succession.” By the mid-fith century CE, the popes were claiming to have total authority over all other bishops, and at least some of those bishops (in Western Europe, at any rate) did look to Rome for guidance. In later centuries, the mere fact that the early popes had claimed that authority, and certain bishops had acknowledged it, was cited as “proof” that the Roman papacy had always been the supreme doctrinal power of the Church as a whole.

All across the Empire, massive church buildings were erected by emperors. Right from the beginning of “official” Christianity, Constantine financed construction of huge churches, including the Basilica of St. Peter in what is today the Vatican (at the time it was an obscure graveyard in Rome). The traditional Roman public buildings, including forums, theaters, bathhouses and so on, were often neglected in favor of churches, and many temples to Roman gods and other public buildings were repurposed as churches.

Fresco showing cutaway view of Constantine’s St. Peter’s Basilica as it looked in the 4th century.
Fresco showing cutaway view of Constantine’s St. Peter’s Basilica as it looked in the 4th century.

Beliefs in the “Old Gods” Fade

Once it enjoyed the support of the Roman elite, the Christian church began incorporating non-Christian holidays into its own liturgical calendar.  December 25 had been the major festival of the sun god Sol Invictus, and early Christians embraced the overlap between that celebration and Christmas, noting that Christ was like the sun as a source of spiritual life.  Other Christian holidays like Easter coincided with various fertility festivals that took place in early spring, around the time of the spring equinox.  The tradition of saint’s days, holidays celebrated in veneration of specific saints, often overlapped with various non-Christian celebrations.  Most church leaders saw no theological problem with this practice, arguing that the ultimate goal was the salvation of souls through conversion, so it made perfect sense to use existing holy days and rituals in order to ease the transition for new converts.

Here are two different takes on the above paragraph:

That being noted, the incorporation of non-Christian celebrations into the liturgical calendar did not imply that Christians were willing to accept polytheism. Unlike most ancient faiths, Christians could not tolerate the worship of other gods, which they regarded as nothing more than nonexistent delusions that endangered souls. They used the term “pagan,” coming from the Latin paganus, which means “country bumpkin” or “redneck,” to describe all worshipers of all other gods, even gods that had been worshiped for thousands of years at that point.  Christians thus used scorn and contempt to vilify worshipers of other gods – “pagan” indicated that the non-Christian was both ignorant and foolish, even if he or she was a member of the Roman elite.


It took about a century for the believers in the old Roman gods, especially the conservative aristocracy of Rome, to give up the fight. As money shifted toward building Christian churches and away from temples, so did Christians sometimes lead attacks to desecrate the sites of pagan worship. Riots occasionally broke out as Christian mobs attacked worshipers of other gods, all with the tacit support of the emperors. In 380 CE the Empire was officially declared to be Christian by the emperor Theodosius I and all people of importance had to be, at least nominally, Christians.

A much more difficult battle, one that in some ways was never really won, had to do with “pagan” practices.  Everyone in the ancient world, Christians among them, believed in the existence of what is now thought of as “magic” and “spirits.”  Christian leaders came to believe that, in general, magic was dangerous, generated by the meddling of the devil, and that the spirits found in nature were almost certainly demons in disguise.  There was very little they could do, however, to overturn the entire worldview of their followers, considering that even Christian leaders themselves very much believed that spirits and magic were present in the world, demonic or not.  Thus, pagan practices like blessing someone after they sneezed (to keep out an invading spirit or demon), throwing salt over one’s shoulder to ward off the devil, and employing all manner of charms to increase luck were to survive to the present.

Orthodoxy, Heresy, and the Council of Nicaea

In the late third century, an Egyptian Christian priest named Arius created a firestorm of controversy when he made the argument that God the father had created Jesus, so it did not make any sense for Jesus to be the same thing as God. Furthermore, it was impossible to be both human and perfect; since Jesus was human, he was imperfect and could not therefore be God, who was perfect.  This belief came to be known as “Arianism” (note that the word has nothing whatsoever to do with the misguided belief in some kind of ancient Germanic race – the “Aryans” – so important to Nazi ideology almost two thousand years later). Arianism quickly took hold among many people, most importantly among the Germanic tribes of the north, where Arian Christian missionaries made major inroads.

Constantine burning books on vellum
(Vellum is made from the skin of a calf.)
Constantine burning books on vellum
(Vellum is made from the skin of a calf.)

Thus, Arianism quickly became the largest and most persistent heresy in the early Christian church.

Icon depicting the Emperor Constantine and the bishops of the First Council of Nicaea (325) holding the Niceno–Constantinopolitan Creed of 381
Icon depicting the Emperor Constantine and the bishops of the First Council of Nicaea (325) holding the Niceno–Constantinopolitan Creed of 381

In 325 CE, only a little over a decade after he had converted to Christianity, Constantine assembled a council of church leaders, the Council of Nicaea, to lay Arianism to rest. One of the results was the Nicene Creed (now usually referred to as the Apostles’ Creed), to this day one of the central elements of Catholic Mass.  In a single passage short enough to commit to memory, the Creed declared belief in Christ’s identity as part of God (“consubstantial to the Father” in its present English translation), Christ’s status as the son of God and the Virgin Mary, Christ’s resurrection, and the promise of Christ’s return at the end of the world.  There was now the first “party line” in the early history of Christianity: a specific set of beliefs backed by institutional authority.

The original Nicene Creed read as follows:

We believe in one God, the Father almighty,
maker of all things visible and invisible;
And in one Lord, Jesus Christ, the Son of God,
begotten from the Father, only-begotten,
that is, from the substance of the Father
God from God, light from light,
true God from true God, begotten not made,
of one substance with the Father,
through Whom all things came into being,
things in heaven and things on earth,
Who because of us men and because of our salvation came down,
and became incarnate and became man, and suffered,
and rose again on the third day, and ascended to the heavens,
and will come to judge the living and dead,
And in the Holy Spirit.
But as for those who say, There was when He was not,
and, Before being born He was not,
and that He came into existence out of nothing,
or who assert that the Son of God is of a different hypostasis or substance,
or created, or is subject to alteration or change
– these the Catholic and apostolic Church anathematizes.

While united in belief, Christians were divided by language, since the western Empire still spoke Latin and the eastern Empire Greek.  In 410 the monk Jerome produced a version of the Christian Bible in Latin, the Vulgate, which was to be the main edition in Europe until the sixteenth century. 

Click here to read from the Vulgate. If you study Latin, it’s a great tool you can use to see English and Latin sentences parallel to each other!

Surprising from a contemporary perspective, however, is that it was not until 1442 (during the Renaissance) that the definitive and in a sense “final” version of the Bible was established by the Western Church when it defined exactly which books of the Old Testament were to be included and which were not.

Monasticism and Christian Culture

Near the end of the third century, a new Christian movement emerged that was to have major ramifications for the history of the Christian world: monasticism. Originally, monasticism was tied to asceticism, meaning self-denial, following the example of an Egyptian holy man named Antony. In about 280, Antony sold his goods and retreated to the desert to contemplate the divine, eschewing all worldly goods in imitation of the poverty of Christ. He would have remained in obscurity except for a book about him written by the bishop Athanasius, The Life of Antony, that celebrated Antony’s rejection of the material world and embrace of divine contemplation. According to Athanasius, normal life was full of temptation, greed, and sin, and that the holiest life was thus one that rejected it completely in favor of prayer and meditation away from human company.  Thousands of people followed Antony’s example, retreating to the wilderness. These early monks were called Anchorites: hermits who lived in deserts, forests, or mountains away from the temptations of a normal social existence (although they had to live close enough to civilization for the donations of food that kept them alive).

Groups of ascetics came together in communities called monasteries.  Originally, these early monks spent almost all of their time in prayer, but over time most monastic communities came to embrace useful work as well as prayer and meditation.  The most important development in the development of monasticism was the work of Benedict, an Italian bishop, who wrote a book known as the Rule in about 529 that laid out how monks should live. The Rule dictated a strict schedule for daily life that revolved around prayer, study, and useful work for the monastery itself (tending crops and animals, performing labor around the monastery, and so on).  Going forward, many monasteries became economic powerhouses, owning large tracts of land and selling their products at a healthy profit.

More important than their economic productivity, at least from the perspective of the history of ideas, is that monasteries became the major centers of learning, especially in Western Europe after the collapse of the western Roman Empire.  One of the tasks undertaken by monks was the painstaking hand-copying of books, almost all of which had to do with Christian theology (e.g. the Bible itself, commentaries from important Christian leaders, etc.), but some of which were classical Greek or Roman writings that would have otherwise been lost.  Often, these books were beautifully illustrated by the monks and are referred to as illuminated manuscripts – among the finest examples of medieval art

A page from an illuminated manuscript
A page from an illuminated manuscript
Reliquary and skull of St. Ives (1253–1303) in France
Reliquary and skull of St. Ives (1253–1303) in France

Outside of monasteries, churches were built in practically every city and town (and many small villages) in the Roman sphere of influence.  One interesting and, from a contemporary perspective, somewhat peculiar phenomenon in early Christianity was the focus on relics: holy objects.  Relics were everything from the bones of saints to fragments of the “True Cross” on which Christ was crucified.  Each church had to have a relic in its altar (contained in a special box called a reliquary) or it was not considered to be truly holy ground. 

All relics were not created equal: the larger the object, or the closer it had been to Christ or the apostles, the more holy power it was believed to contain.  Thus, a thriving trade in relics (plagued by counterfeits – it was not easy to determine if a given finger bone was really the finger bone of St. Mark!) developed in Europe as rival church leaders tried to secure the most powerful relic for their church.  This was not just about the symbolic importance of the relics, as pilgrims would travel from all over the Roman world to visit the site of noteworthy relics, bringing with them considerable wealth.  Whole regional economies centered on pilgrimage sites as a result.

The Fall of Rome (476 CE)

The fall of Rome, conventionally dated to 476 CE, is one of the most iconic events in the history of the western world.  For centuries, people have tried to draw lessons from Rome’s decline and fall about their own societies, a practice inspired by the question of how so mighty and, at one time, stable a civilization could so utterly disintegrate.  The answers have varied considerably: Rome grew corrupt and weak over time, Rome was infiltrated by “barbarian” cultures,  Rome was simply overcome by overwhelming odds, or perhaps Rome was simply transformed into a different, more diverse set of societies rather than destroyed in so many words.  However the events of the period are interpreted, the simple fact remains: the political unity of the Roman Empire was shattered by the end of the fifth century CE.

While the debate as to the causes of Rome’s fall will probably never be definitively answered, an important caveat should be noted: Rome did not “really” fall for another thousand years, even though the city of Rome itself, along with the western half of the Empire, did indeed lose its sovereignty in the face of invasion by Germanic “barbarians.”  The Roman capital had already been moved to Constantinople in the early fourth century, and the eastern half of the empire remained intact, albeit under constant military pressure, until 1453.  Arguably, one of the major causes for the collapse of the western empire was the fact that the Empire as a whole had focused its resources in the east for a century by the time waves of invaders appeared on the horizon starting in the fourth century CE.

Invasions of the Roman Empire 100-500

A note on nomenclature: this section will refer to the groups responsible for the destruction of the western empire as barbarians when referring to the Roman perception of Germanic and Central Asian groups.  The point is not to vilify those groups, but to emphasize the degree to which Romans were both contemptuous towards and, it turns out, vulnerable to them.  When possible, it will refer to specific groups by name such as the Goths and the Huns.  In addition, it will refer to “Germans” when discussing the specific groups native to Central Europe that played such a key role in the fall of Rome.  That is something of a misnomer, however, since there was no kingdom or empire called “Germany” until 1871 CE (i.e. about 1,400 years later).  Thus, when using the term “Germans,” this section is referring to any of the Germanic cultural groups of the era rather than the citizens or subjects of a unified country.

Roman Relations with Barbarians

Romans had always held “barbarians” in contempt, and they believed that the lands held by barbarians (such as Scotland and Germany) were largely unsuitable for civilization, being too cold and wet for the kind of Mediterranean agriculture Romans were accustomed to.  Romans believed that barbarian peoples like the Germans were inferior to subject peoples like the Celts, who could at least be made useful subjects (and, later, citizens) of the Empire.  For the entire history of the Empire, the Romans never seem to have figured out exactly which groups they were interacting with; they would simply lump them together as “Goths” or even “Scythians,” a blanket term referring to steppe peoples.  Occasionally, hundreds of years after they “should have known better,” Roman writers would actually refer to Germans as Celts.

It is easy to overstate this attitude; there were many members of Germanic tribes who did rise to prominence in Rome (one, Stilicho, was one of the greatest Roman generals in the late Empire, and he was half Vandal by birth). 

Likewise, it is clear from archaeology that many Germans made a career of fighting in the Roman armies and then returning to their native areas, and that many Germans looked up to Rome as a model of civilization to be emulated, not some kind of permanent enemy.  Some Romans clearly did admire things about certain barbarian groups, as well – the great Roman historian Tacitus, in his Germania, even praised the Germans for their vigor and honor, although he did so in order to contrast the Germans with what he regarded as his own corrupt and immoral Roman society.

That said, it is clear that the overall pattern of contact between Rome and Germania was a combination of peaceful coexistence punctuated by many occasions of extreme violence.  Various tribes would raid Roman lands, usually resulting in brutal Roman reprisals.  As the centuries went on, Rome came increasingly to rely on both Germanic troops and on playing allied tribes off against hostile ones.  In fact, by the late fourth century CE, many (sometimes even most) soldiers in “Roman” armies in the western half of the Empire were recruited from Germanic groups.

The only place worthy of Roman recognition as another “true” civilization was Persia.  When Rome was forced to cede territory to Persia in 363 CE after a series of military defeats, Roman writers were aghast because the loss of territory represented “abandoning” it to the other civilization and state.  When “barbarians” seized territory, however, it rarely warranted any mention among Roman writers, since it was assumed that the territory could and would be reclaimed whenever it was convenient for Rome.

Meanwhile, there had been hundreds of years of on-again, off-again wars along the Roman borders before the “fall” of Rome actually occurred.  Especially since the third century, major conflicts were an ongoing reality of the enormous borders along the Rhine and Danube. Those conflicts had prompted emperors to build the system of limes meant to defend Roman territory, and from that point on, the majority of Roman legions were usually deployed along the semi-fortified northern borders of the empire.  There is evidence that many of those soldiers spent their careers as not-so-glorified border guards and administrators and never experienced battle itself; there is no question that the performance of the Roman military was far poorer in the late imperial period than it had been, for instance, under the Republic.

In turn, many of the Germans who settled along those borders were known as federatii, tribal groups who entered into treaties with Rome that required them to pay taxes in kind (i.e. in crops, animals, and other forms of wealth rather than currency) and send troops to aid Roman conquests, and who received peace and recognition (and usually annual gifts) in return. 

The problem for Rome was that most Germanic peoples regarded treaties as being something that only lasted as long as the emperor who had authorized the treaty lived; on his death, there would often be an incursion since the old peace terms no longer held.  The first task new emperors had to attend to was often suppressing the latest invasion from the north.  One example was the Goths, settled at the time somewhere around present-day Romania, whom Constantine severely punished after they turned on his forces during his war of conquest leading up to 312 CE.

Depiction of a Gothic warrior battling Roman cavalry
Depiction of a Gothic warrior battling Roman cavalry
Notice how the Goths are near the Black Sea in 300 CE.
Notice how the Goths are near the Black Sea in 300 CE.

The bottom line is that, as of the late fourth century CE, it seemed like “business as usual” to most political and military elites in the Roman Empire.  The borders were teeming with barbarians, but they had always been teeming with barbarians.  Rome traded with them, enlisted them as soldiers, and fought them off or punished them as Roman leaders thought it necessary.  No one in Rome seemed to think that this state of affairs would ever change.  What contemporary historians have determined, however, is that things had changed: there were more Germans than ever before, they were better-organized, and they were capable of defeating large Roman forces.  What followed was a kind of “barbarian domino effect” that ultimately broke the western Empire into pieces and ended Roman power over it.

One other factor in the collapse of the western half of the Empire should be emphasized: once Rome began to lose large territories in the west, tax revenues shrunk to a fraction of what they had been.  While the east remained intact, with taxes going to pay for a robust military which successfully defended Roman sovereignty, Roman armies in the west were under-funded, under-manned, and vulnerable.  There was thus a vicious cycle of lost land, lost revenue, and poor military performance that saw Roman power simply disintegrate over the course of less than a century.  Even the handful of effective emperors and generals in the west during that period could not staunch the tide of defeat.


The beginning of the end for the western empire was the Huns.  The Huns were warriors of the central Asian steppes: expert horsemen, skillful warriors, unattached to any particular land.  They had much in common with other groups of steppe peoples like the Scythians who had raided civilized lands going back to the very emergence of civilization in Mesopotamia.  They were believed to be so cruel and so unstoppable that the Germanic groups farther west claimed that they were the product of unions between demons and witches, rather than normal humans. 

Aleric entering Athens
Aleric entering Athens

In 376 the Huns drove a tribe of Goths from their lands in southern Russia.  Those Goths were allowed to settle in the Balkans by the Romans, but were soon extorted by Roman officials, causing the Goths to rise up against Rome in retribution.  In 378 the Goths killed the emperor, Valens, and destroyed a Roman army in an open battle.  The new emperor made a deal with the Goths, allowing them to serve in the Roman army under their own commanders in return for payment.  This proved disastrous for Rome in the long run as the Goths, under their king Alaric, started looting Roman territory in the Balkans, finally marching into Italy itself and sacking Rome in 410 CE. 

The Roman government officially moved to the city of Ravenna in the north (which was more defensible) following this sack.

The Gothic attack on Rome was the first time in roughly seven hundred years that the walls of Rome had been breached by non-Romans.  The entire Roman world was shocked and horrified that mere barbarians could have overwhelmed Roman armies and struck at the heart of the ancient Empire itself.  Rome’s impregnability was itself one of the founding stories Romans told themselves; Romans had long vowed that the Celtic sack of 387 BCE would be the last, and yet the Goths had shattered that myth.  With the benefit of historical hindsight, we can see the arrival of the Huns as the beginning of a “domino effect” in which various groups were pushed into Roman territory, with the sack of Rome merely one disaster of many for the Empire.

Leading up to that event, the Roman legions were already losing their former coherence and unity.  In 406 CE a very cold winter froze the Rhine river, and armies of barbarians invaded (literally walking across the frozen river in some cases), bypassing the traditional Roman defenses.  One group, the Vandals, sacked its way to the Roman provinces of Spain and seized a large swath of territory there.  The entire army of Britain left in 407 CE, when yet another ambitious general tried to seize the imperial throne, and Roman power there swiftly collapsed.

Roman armies from the western empire hastily marched back to Italy to fight the Goths, abandoning their traditional defensive posts.  For the next fifty years, various groups of Germanic invaders wandered across Europe, both looting and, soon, settling down to occupy territory that had only recently been part of the Roman Empire.  Most of these groups soon established kingdoms of their own.  The Vandals pushed through Spain and ended up conquering most of Roman North Africa.  After the Goths sacked Rome itself in 410, the emperor Honorius gave them southern Gaul to get them to leave; they ended up seizing most of Spain (from the Vandals who had arrived before them) as well.  At that point, the Romans came to label this group the Visigoths – “western Goths” – to distinguish them from other Gothic tribes still at large in the Empire.

This is what Europe looked like in 450:

Back in Italy, the Huns, under the leadership of the legendary warlord Attila, arrived in the late 440s, pushing as far as the gates of Rome in 451. 

There, the Pope (Leo I) personally appealed to Attila not to sack the city and paid them a hefty bribe.  Attila died in 453 and the Huns were soon defeated by a combined army of their former Germanic subjects and a Roman army.  By then, however, the damage was done: the domino effect set off by the Hunnic invasion of the previous century had already almost completely swallowed up the western empire. 

A more detailed map of the territory under control of the Huns circa 450
A more detailed map of the territory under control of the Huns circa 450

Only two years after the Huns were defeated, the Vandals sailed over from Africa in 455 and sacked Rome again.  This sacking, despite occurring with relatively little carnage, nevertheless led to the use of the word “vandal” to mean a malicious destroyer of property.

The Sack of Rome,
The Sack of Rome

Note in the map below how the Vandals migrated to North Africa. Their original homeland was in Vendel, an area in Scandinavia. Their migration from the pink area (that was settled with permission by Constantine the Great) around 400 was due to raids from the Huns. They came to Africa at the request of Bonifacius, the military ruler of the region who was seeking to establish himself as an independent ruler in Africa or even become Roman Emperor.

Italy itself held out until 476, when an Ostrogothic (“eastern Goth”) warlord named Odoacer deposed the last emperor and declared himself king of Italy; the Roman emperor in Constantinople (having little choice) approved of Odoacer’s authority in Italy in return for a nominal pledge of loyalty. 

In 493, Odoacer was deposed and killed by a different Ostrogothic king, Theodoric, but the link with Constantinople remained intact.  The Roman emperor worked out a deal with Theodoric to stabilize Italy, and Theodoric went on to rule for decades (r. 493 – 526).  Thus, by 500 CE Italy and the city of Rome were no longer part of the empire still called “Roman” by the people of the eastern empire.   By the end of the fifth century, the western empire was gone, replaced by a series of kingdoms ruled by Germanic peoples but populated by former citizens of the Roman Empire.

Map of the territories (pink) ruled by Theodoric the Great at their height in 523, when he annexed the southern part of the Burgundian kingdom, between the rivers Durance and Isere. Stippled areas indicate other kingdoms dominated by Theodoric at this time.
Map of the territories (pink) ruled by Theodoric the Great at their height in 523, when he annexed the southern part of the Burgundian kingdom, between the rivers Durance and Isere. Stippled areas indicate other kingdoms dominated by Theodoric at this time.


Theodoric presided over a few decades of prosperity, restoring peace to the Italian peninsula and joining together with other Gothic territories to the west.  He maintained excellent relations with the Pope even though he was an Arian Christian, and he set up a system in which a government existed for his Goths that was distinct from the Roman government (with him at the head of both, of course). 

Some historians have speculated that Theodoric and the Goths might have been able to forge a new, stable Empire in the west and thereby obviate the coming of the “Dark Ages,” but that possibility was cut short when the Byzantine Empire invaded to try to reconquer its lost territory.

In Gaul, a fierce tribe called the Franks, from whom France derives its name, came to power, driving out rivals like the Visigoths.  Unlike the other Germanic tribes, the Franks did not abandon their homeland when they set out for new territory. From the lower Rhine Valley, they gradually expanded into northern Gaul late in the fifth century. Under the leadership of the warrior chieftain Clovis (r. 481/482 – 511), the various Frankish tribes were united, which gave them the military strength to depose the last Roman governor in Gaul, drive the Visigoths into Spain, absorb the territory of yet another barbarian group known as the Burgundians, and eventually conquer most of Gaul.

Franks (400–600 CE)
Franks (400–600 CE)

One key reason for the Frankish kingdom’s success was that its kings received their legitimacy from the Church. In the same way that the Christian Church had endorsed the Roman Emperors since Constantine and, in return, these emperors supported the Church, the Frankish kings took up a similar relation with the Christian religion.

Conquests of Clovis between 481 and 511
Conquests of Clovis between 481 and 511

In almost every case, the new Germanic kings pledged formal allegiance to the Roman emperor in Constantinople in return for acknowledgment of the legitimacy of their rule.  They often did their best to build on the precedent of Roman civilization as well; for example, Clovis of the Franks made a point of having the Frankish laws recorded in Latin, and over time the Frankish language vanished, replaced by the early form of French, a Latinate language.  In fact, for well over a century, most Germanic “kings” were, officially, treaty-holding, recognized Roman officials from the legal and diplomatic perspective of Constantinople.  That said, the “Roman” emperors of Constantinople had plenty of legal pretext to regard those kings as usurpers as well, since the treaties of acknowledgment were often full of loopholes.  Thus, when the emperor Justinian invaded Italy in the sixth century, he was doing so to reassert not just the memory of the united Empire, but to restore the Empire to the legal state in which it already technically existed.

In none of these kingdoms, Visigothic, Ostrogothic, Frankish, or Vandal, did the Germanic peoples who ruled them seek to destroy Roman society—far from it. Rather, they sought homelands and to live as the elites of the Roman Empire had done before them. Theodoric, the king of the Ostrogoths, had told his people to “obey Roman customs… [and] clothe [them] selves in the morals of the toga.” Indeed, in the generations after the end of the Western Empire in the late 400s, an urban, literate culture continued to flourish in Spain, Italy, and parts of Gaul. The Germanic peoples often took up a place as elites in the society of what had been Roman provinces, living in rural villas with large estates. Local elites shifted their allegiances from the vanished Roman Empire to their new rulers.

But even though the Germanic kings of Western Europe had sought to simply rule in the place of (or along with) their Roman predecessors, many of the features that had characterized Western Europe under the Romans—populous cities; a large, literate population; a complex infrastructure of roads and aqueducts; and the complex bureaucracy of a centralized state—vanished over the course of the sixth century. Cities shrank drastically, and in those regions of Gaul north of the Loire River, they nearly all vanished in a process that we call ruralization.

The word rural comes from the Latin ruris, meaning open land or country.

As Europe ruralized and elite values came to reflect warfare rather than literature, schools gradually vanished, leaving the Church as the only real institution providing education. So too did the tax-collecting apparatus of the Roman state gradually wither in the Germanic kingdoms. The Europe of 500 may have looked a lot like the Europe of 400, but the Europe of 600 was one that was poorer, more rural, and less literate.

 This decline inspired the contempt of later Renaissance thinkers who wrote off the period between the fall of Rome and the beginning of the Renaissance in about 1300 CE as the “Dark Ages.”

Ultimately, after the western part of the Roman Empire fell in the late fifth century, it was the Christian Church that carried on at least parts of Roman civilization, learning, and culture.  One of the historical ironies of this period of history is that even though Rome’s Empire began to decline and (eventually) collapse politically, it lived on thanks to ideas and beliefs that originally arisen in the Roman context – it lived on ideologically and spiritually.

The following video sums all of the above up:

While interpretations of the collapse of the Empire will continue to differ as long as there are people interested in Roman history, there is no question about the basic facts: half of what had once been an enormous, coherent, and amazingly stable state was splintered into political fragments by the end of the fifth century.

The following animation shows the development of the Roman Republic and Empire from 510 BCE:

Orange: The Roman Republic
Purple: The Roman Empire
Green: The Eastern Roman/Byzantine Empire
Blue: The Western Roman Empire

We want to know what you thought of what you just read and watched! Leave us a comment! Please also let us know if a link or video isn’t working. ?

Next: The Indian Subcontinent

Praetorian guard relief: By Historien spécialiste du bassin minier du Nord-Pas-de-Calais JÄNNICK Jérémy / Wikimedia Commons & Louvre-Lens, GFDL 1.2,

Diocletian: By G.dallorto – Own work, Attribution,

Gospel message quote:

Tetrachy map: By Coppermine Photo Gallery – Coppermine Photo Gallery, CC BY-SA 3.0,

Constantine’s bust: By Jean-Pol GRANDMONT – User:Jean-Pol GRANDMONT (2011), CC BY-SA 3.0,

Jewish diaspora map: By BedrockPerson – Own work, CC BY-SA 4.0,

Judea map: By JWooldridge – Own work, CC BY 3.0,

Sicarii info:

Masada info:

Masada photo: By Andrew Shiva / Wikipedia, CC BY-SA 4.0,

Constantinople coins: By Ancientcointraders – Constantina Piliouras,, CC BY-SA 4.0,

Old St. Peter’s Basillica: Public Domain,

Nicaea icon: By Unknown author – [1],[2], Public Domain,

Ostrogoth map: By Vortimer at English Wikipedia, CC BY 3.0,

Constantine burning books on vellum: By file: James Steakley; artwork: unknown – Jean Hubert et al., Europe in the Dark Ages (London: Thames & Hudson, 1969), p. 143, Public Domain,

Illuminated manuscript: By Master of the Boston City of God –, CC0,

Relic: By Derepus – Foto zal gemaakt in de kerk, CC BY-SA 3.0,

Animated map of the Roman Republic and Empire: By Roke (d) – Background map based on Image:BlankMap-Europe-v3.pngData from:Colin McEvedy, Penguin Atlas of Ancient HistoryJohn Haywood, Atlas of Past TimesDK Atlas of world historydetailed Roman empire Expansion map at Uni of TexasSee also maps at external links, four stage animated map of the roman empire[dead link], more detailed animated map of roman empire, CC BY-SA 3.0,

Map showing the Goths: By Thomas Lessman (Contact!) – self-made (For reference information, see the Map Source References section below.), CC BY-SA 3.0,

Theodoric medallion: By Unknown author –, CC BY 3.0,

Gothic warrior: By Unknown artist – Jastrow (2006), Public Domain,

Huns map: By Slovenski Volk – Own work, CC BY-SA 3.0,

Theodosius I bust: By –, CC BY-SA 4.0,

Vandals map: By O.Mustafin (talk · contribs) – This file was derived from:  Vandals Migration ua.PNG:, CC0,

The sack of Rome: By Karl Bryullov – Karl Bryullov, Public Domain,

Franks costume: By by Albert Kretschmer, painters and costumer to the Royal Court Theatre, Berin, and Dr. Carl Rohrbach. – Costumes of All Nations (1882), Public Domain,

Europe in 450 map: CC BY-SA 3.0,

Conquests of Clovis map: By Altaileopard – Own work – based on File:Europe relief laea location map.jpg by Alexrk2, CC BY-SA 3.0,

Aleric: By Unknown author –, Public Domain,

This text was adapted (with permission) from:

  • Western Civilization: A Concise History – Volumes 1-3
    by Dr. Christopher Brooks
  • World History Cultures, States, and Societies to 1500
    by Eugene Berger, Ph.D, George L. Israel, Ph.D., Charlotte Miller, Ph.D., Brian Parkinson, Ph.D., Andrew Reeves, Ph.D, and Nadejda Williams, Ph.D.
    CC BY-SA
  • Modern World History
    by Dan Allosso, Bemidji State University and Tom Williford, Southwest Minnesota State University

I’ve taken excerpts from the above-mentioned resources and heavily edited and added to them for my intended audience. While I’ve received permission to use/adapt these books, none of the above endorses Guest Hollow or my use of their materials.

Information was also taken from Wikipedia under the Creative Commons Attribution-ShareAlike License and other resources (listed in the individual page credits).

This online book is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License, except where otherwise noted.

Beowulf the Fox Terrier dog and the Greek & Latin roots graphic © Jennifer Guest

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