Byzantine Empire

Byzantine Empire (native Greek name: Βασιλεία τῶν Ρωμαίων - Basileia tōn Romaiōn) is the term conventionally used since the 19th century to describe the Greek-speaking Roman Empire of the Middle Ages, centered at its capital in Constantinople. In certain specific contexts, usually referring to the time before the fall of the Western Roman Empire, it is also often referred to as the Eastern Roman Empire. To its inhabitants the Empire was simply the Roman Empire and its emperors continued the unbroken succession of Roman emperors. During much of its history it was known to many of its Western contemporaries as "The Empire of the Greeks" due to the increasing dominance of its Greek population and distinct culture. Today most scholars acknowledge that the Byzantine Empire was the direct continuation of the Hellenistic World.

There is no consensus on the starting date of the Byzantine period. Some place it during the reign of Diocletian (284–305) due to the administrative reforms he introduced, dividing the empire into a pars Orientis and a pars Occidentis. Some consider Constantine I its founder. Others place it during the reign of Theodosius I (379–395) and Christendom's victory over pagan Roman religion, or, following his death in 395, with the division of the empire into western and eastern halves. Others place it yet further in 476, when the last western emperor, Romulus Augustus, was forced to abdicate, thus leaving sole imperial authority to the emperor in the Greek East. In any case, the changeover was gradual and by 330, when Constantine inaugurated his new capital, the process of further Hellenization and increasing Christianization was already under way.

The term Byzantine Empire

Main article: Names of the Greeks

The Empire's native Greek name was Ρωμανία, Rōmanía, or Βασιλεία Ρωμαίων, Basileía Rōmaíōn, a direct translation of the Latin name of the Roman Empire, Imperium Romanorum. The term Byzantine Empire was introduced in western Europe in 1557, inspired from the city of Byzantium by German historian Hieronymus Wolf about a century after the fall of Constantinople who had taken it from the writing of 15th century Byzantine historian Laonicus Chalcocondyles. He presented a system of Byzantine historiography in his work Corpus Historiae Byzantinae, in order to "distinguish ancient Roman from medieval Greek history without drawing attention to their ancient predecessors".

Standardization of the term began gradually in the 18th century, when French authors such as Montesquieu began to popularize it. Hieronymus himself was influenced by the rift caused by the 9th century dispute between Romans (Byzantines as we render them today) and Franks. The Franks under Charlemagne's newly formed empire, and in concert with the Pope, attempted to legitimize their conquests by claiming inheritance of Roman rights in Italy. The Donation of Constantine, one of the most famous forged documents in history, played a crucial role in this. Henceforth, it was prevalent in the West to refer to the emperor in Constantinople not by the usual Imperator Romanorum (Emperor of the Romans) which was now reserved for the Frankish monarch - a slight to the Byzantines as it threatened their sovereignty, but as Imperator Graecorum (Emperor of the Greeks) and the land as Imperium Graecorum, Graecia, Terra Graecorum or even Imperium Constantinopolitanum.

Identity, continuity, and consciousness

"Byzantium may be defined as a multi-ethnic empire that emerged as a Christian empire, soon comprised the Hellenized empire of the East and ended its thousand-year history, in 1453, as a Greek Orthodox state: An empire that became a nation, almost by the modern meaning of the word".

In the centuries following the Arab, Bulgar and Lombard conquests in the 7th century, its multi-ethnic (albeit not multi-national) nature remained even though its constituent parts in the Balkans and Asia Minor contained an overwhelmingly large Greek population. Ethnic minorities and sizeable communities of religious heretics often lived on or near the borderlands, the Armenians on the eastern border consisting the only sizable one. As some scholars have pointed out, the Byzantine Empire of the 11th century coincided to a very large extent with the ethnic Greek distribution of the early 20th century and the areas of Greek colonization in the ancient world However this ignores the much wider distribution of Greeks throughout the Eastern half of the empire (particularly, the cities of Antioch, Alexandria and throughout Egypt, Palestine and Syria) prior to the Muslim conquest.[1]

The Byzantines identified themselves as Romans (Ρωμαίοι - Romaioi) and more than ever before were developing a national consciousness as residents of Ρωμανία (Rōmania, as the Byzantine state and its world were called). This nationalist awareness is reflected in literature, particularly in the acritic songs, where frontiersmen (Ακρίτες) are praised for defending their country against invaders, of which the most famous is the heroic or epic poem Digenis Akritas.

Byzantines were generally conscious of their continuity with ancient Greeks and Romans. Even though the ancient Greeks were not Christians, the Byzantine intellectuals regarded them as their ancestors, and referring to their medieval Greek language as "Hellenic". In fact, the Byzantines did not only refer to themselves as Rōmaioi in order to retain both their Roman citizenship and their ancient Hellenic heritage. A common substitute for the term "Hellene" (originally with pagan connotations) other than Rōmaios was the term Graikos (Γραίκος). Evidence of the use of the term Graikos can be found in the works of Priscus, a historian of the 5th century. In one of his accounts while part of an unofficial embassy to Attila the Hun, he had met at Attila's court someone who dressed like a Scythian yet spoke Greek. When Priscus asked the person where he had learned the language, the man said that he was a Graikos by birth. For more information, see main article: Names of the Greeks

The official dissolution of the Byzantine state in the 15th century did not immediately undo Byzantine society. During the Ottoman occupation Greeks continued to identify themselves as both Ρωμιοί (Rōmioi) and Έλληνες (Hellēnes), a trait that survived into the early 20th century and still persists today in Greece, albeit the former more in line with folklore today.

Map of the Roman Empire ca. 395, showing the dioceses and praetorian prefectures of Gaul, Italy, Illyricum and Oriens (east), roughly analogous to the four Tetrarchs' zones of influence after Diocletian's reforms.

Origin

Caracalla's decree in 212, the Constitutio Antoniniana, extended citizenship outside of Italy to all free adult males in the entire Roman Empire, effectively raising provincial populations to equal status with the city of Rome itself. The importance of this decree is historical rather than political. It set the basis for integration where the economic and judicial mechanisms of the state could be applied around the entire Mediterranean as was once done from Latium into all of Italy.

The division of the Empire began with the Tetrarchy (quadrumvirate) in the late 3rd century with Emperor Diocletian, as an institution intended to more efficiently control the vast Roman Empire. He split the Empire in half, with two emperors (Augusti) ruling from Italy and Greece, each having as co-emperor a younger colleague of their own (Caesares). After Diocletian's voluntary abandonment of the throne, the Tetrarchic system began soon to crumble: the division continued in some form into the 4th century until 324 when Constantine I killed his last rival and became the sole emperor.

Constantine made a momentous and far-reaching decision - one of the two momentous decisions in his reign, the other being the acceptance of Christianity - when he decided to found a new capital city, and chose Byzantium for that purpose. Rome had long since ceased to be an effective political capital of the Empire, being too far from the endangered northern frontiers and the wealthy Eastern provinces, and since the mid 3rd century had rarely seen Emperors on a regular basis. Byzantium was well positioned astride the trade routes between East and West, was a superb base from which to guard the crucial Danubian provinces, and was reasonably close to the Eastern frontiers. Constantine had experienced its potential as a fortress first-hand when it held out as the last pocket of resistance during his successful war against his Eastern rival Licinius (324).

In 330, Nova Roma was officially founded very near the location of Byzantium (which subsequently disappeared), however the populace commonly called it Constantinople (in Greek, Κωνσταντινούπολις, Kōnstantinoúpolis, meaning Constantine's City). Constantine began the building of the great fortified walls that were perhaps the most striking feature of the city. These walls, expanded and rebuilt in subsequent ages, combined with the fortified harbor and fleet, made Constantinople a virtually impregnable fortress, and certainly the most important fortress in the early Middle Ages. On several occasions in the hundreds of years to come, Constantinople would stand as the last bulwark of Roman civilization in the eastern Mediterranean, and indeed as the main bulwark of Christian civilization as a whole.

The new capital became the center of his administration. Constantine deprived the single praetorian prefect of his civil functions, introducing regional prefects with civil authority. During the 4th century, four great "regional prefectures" were also created.

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Constantine I

Constantine is generally considered to be the first Christian emperor. Tradition holds that before a battle at the gates of Rome in 312 against a rival emperor, Constantine saw a flaming cross in the sky with the words "By this sign, conquer" (In hoc signo vinces). Whatever the actual case may be, there is no question that after 312 Constantine began to shower favors on Christianity, and the religion, which had been persecuted under Diocletian, became a "permitted religion" and steadily increased its power as years passed, apart from a short-lived return to pagan predominance under the emperor Julian. Although the empire was not yet "Byzantine" under Constantine, Christianity would become one of the defining characteristics of the Byzantine Empire, as opposed to the pagan Roman Empire.

Constantine also introduced a new stable gold coin, the solidus, which was to become the standard coin for centuries, and not only in the Byzantine Empire.

Another defining moment in the history of the Roman/Byzantine Empire was the Battle of Adrianople in 378 in which the Emperor Valens and the best of the remaining Roman legions were killed by the Visigoths. This defeat has been proposed by some authorities as one possible date for dividing the ancient and medieval worlds. The Roman Empire was divided further by Valens' successor Theodosius I (also called "the Great"), who had ruled both parts since 392: following the dynastic principle well established by Constantine, in 395 Theodosius gave the two halves to his two sons Arcadius and Honorius; Arcadius became ruler of the eastern half, with his capital in Constantinople, and Honorius became ruler of the western half, with his capital in Ravenna. Theodosius was the last Roman emperor whose authority covered the entire traditional extent of the Roman Empire. At this point, it is common to refer to the empire as "Eastern Roman" rather than "Byzantine."

Early history

The Eastern Roman Empire was largely spared the difficulties of the west in the 3rd and 4th centuries (see Crisis of the Third Century) in part because urban culture was better established there and the initial invasions were attracted to the wealth of Rome. Throughout the 5th century, various invasions conquered the western half of the Roman Empire and at best only demanded tribute from the eastern half. Theodosius II fortified the walls of Constantinople, leaving the city impenetrable to attacks: it was to be preserved from foreign conquest until 1204. To spare the Eastern Roman Empire from the invasion of the Huns of Attila, Theodosius gave them subsidies of gold. Moreover, he favored merchants living in Constantinople who traded with the barbarians. His successor, Marcian, refused to continue to pay the great sum. However, Attila had already diverted his attention from the Western Roman Empire and died in 453 after the Battle of Chalons. The Hunnic Empire collapsed and Constantinople was free from the menace of Attila. This started a profitable relationship between the Eastern Roman Empire and the remaining Huns. The Huns would eventually fight as mercenaries in Byzantine armies during the following centuries.

At the time since the fall of Attila, the true chief in Constantinople was the Alan general Aspar. Leo I managed to free himself from the influence of the barbarian chief favouring the rise of the Isaurians, a crude semi-barbarian tribe living in Roman territory, in southern Anatolia. Aspar and his son Ardabur were murdered in a riot in 471, and henceforth, Constantinople became free from foreign influences for centuries. Leo was also the first emperor to receive the crown not from a general or an officer, as evident in the Roman tradition, but from the hands of the patriarch of Constantinople. This habit became mandatory as time passed, and in the Middle Ages, the religious characteristic of the coronation had totally substituted the old form. In 468, Leo unsuccessfully attempted to reconquer North Africa from the Vandals. By that time, the Western Roman Empire was already restricted to Italy (Britain had fallen to Angles and Saxons, Spain fell to the Visigoths, Africa fell to the Vandals and Gaul fell to the Franks).

In 466, as a condition of his Isaurian alliance, Leo married his daughter Ariadne to the Isaurian Tarasicodissa, who took the name Zeno. When Leo died in 474, Zeno and Ariadne's minor son (Leo I's grandson) succeeded to the throne as Leo II, with Zeno acting as regent. When Leo II died later that year, Zeno became emperor. The end of the Western Empire is sometimes dated to 476, early in Zeno's reign, when the barbarian general Odoacer deposed the titular Western Emperor Romulus Augustus, but declined to replace him with another puppet. To recover Italy, Zeno could only negotiate with the Ostrogoths of Theodoric who had been settled in Moesia. He sent the barbarian king in Italy as magister militum per Italiam ("chief of staff for Italy"). After the fall of Odoacer in 493, Theodoric, who had lived in Constantinople during his youth, ruled over Italy on his own, maintaining a merely formal obedience to Zeno. He revealed himself as the most powerful Germanic king of that age, but his successors were greatly inferior to him and their kingdom of Italy started to decline in the 530s.

In 475, Zeno was deposed by a plot to elevate Basiliscus (the general who led Leo I's 468 invasion of North Africa) to the throne. Zeno recovered the throne twenty months later. However, Zeno had to face the threat coming from his Isaurian former official Illo and the other Isaurian, Leontius, who was also elected rival emperor. Isaurian prominence ended when an aged civil officer of Roman origin, Anastasius I, became emperor in 491 and after a long war defeated them in 498. Anastasius revealed himself to be an energetic reformer and an able administrator. He perfected Constantine I's coin system by definitively setting the weight of the copper follis, the coin used in most everyday transactions. He also reformed the tax system in which the State Treasury contained the enormous sum of 320,000 pounds of gold when he died.

The age of Justinian I

The reign of Justinian I, which began in 527, saw a period of extensive imperial conquests of former Roman territories (indicated in green on the map below). The 6th century also saw the beginning of a long series of conflicts with the Byzantine Empire's traditional early enemies, such as the Sassanid Persians, Slavs and Bulgars. Theological crises, such as the question of Monophysitism, also dominated the empire.

Justinian I had perhaps already exerted effective control during the reign of his predecessor, Justin I (518–527). Justin I was a former officer in the imperial army who had been chief of the guards to Anastasius I, and had been proclaimed emperor (when almost 70) after Anastasius' death. Justinian was the son of a peasant from Illyricum, but was also a nephew of Justin. Justinian was later adopted as Justin's son. Justinian would become one of the most refined people of his century, inspired by the dream to re-establish Roman rule over all the Mediterranean world. He reformed the administration and the law, and with the help of brilliant generals such as Belisarius and Narses, he temporarily regained some of the lost Roman provinces in the west, conquering much of Italy, North Africa, and a small area in southern Spain.

In 532, Justinian secured for the Eastern Roman Empire peace on the eastern frontier by signing an "eternal peace" treaty with the Sassanid Persian king Khosrau I. However, this required in exchange a payment of a huge annual tribute of gold. The same year, the Nika riots, or Nika revolt, lasted for one week in Constantinople. It was the most violence the polis had ever seen to that point and nearly half of it was burned or destroyed.

Justinian's conquests in the west began in 533 when Belisarius was sent to reclaim the former province of North Africa with a small army of 15,000 men who were mainly mercenaries. Whereas an earlier expedition in 468 had been a failure, this new venture was successful. The kingdom of the Vandals at Carthage lacked the strength of former times under King Gaiseric and the Vandals surrendered after few battles against Belisarius' forces. General Belisarius returned to a Roman triumph in Constantinople with the last Vandal king, Gelimer, as his prisoner. However, the reconquest of North Africa would take a few more years to stabilize. It was not until 548 that the main local independent tribes were entirely subdued.

Map of the Byzantine Empire around 550

In 535, Justinian I launched his most ambitious campaign, the reconquest of Italy. At the time, Italy was still ruled by the Ostrogoths. He dispatched an army to march overland from Dalmatia while the main contingent, transported on ships and again under the command of General Belisarius, disembarked in Sicily and conquered the island without much difficulty. The marches on the Italian mainland were initially victorious and the major cities, including Naples, Rome and the capital Ravenna, fell one after the other. The Goths were seemingly defeated and Belisarius was recalled to Constantinople in 541 by Justinian. Belisarius brought with him to Constantinople the Ostrogoth king Witiges as a prisoner in chains. However, the Ostrogoths and their supporters were soon reunited under the energetic command of Totila. The ensuing Gothic Wars were an exhausting series of sieges, battles and retreats which consumed almost all the Byzantine and Italian fiscal resources, impoverishing much of the countryside. Belisarius was recalled by Justinian, who had lost trust in his preferred commander. At a certain point, the Byzantines seemed to be on the verge of losing all the possessions they had gained. After having neglected to provide sufficient financial and logistical support to the desperate troops under Belisarius' former command, in the summer of 552 Justinian gathered a massive army of 35,000 men (mostly Asian and Germanic mercenaries) to contribute to the war effort. The astute and diplomatic eunuch Narses was chosen for the command. Totila was crushed and killed at the Busta Gallorum. Totila's successor, Teias, was likewise defeated at the Battle of Mons Lactarius (central Italy, October 552). Despite continuing resistance from a few Goth garrisons, and two subsequent invasions by the Franks and Alamanni, the war for the reconquest of the Italian peninsula came to an end.

Justinian's program of conquest was further extended in 554 when a Byzantine army managed to seize a small part of Spain from the Visigoths. All the main Mediterranean islands were also now under Byzantine control. Aside from these conquests, Justinian updated the ancient Roman legal code in the new Corpus Juris Civilis. Even though the laws were still written in Latin, the language itself was becoming archaic and poorly understood even by those who wrote the new code. Under Justinian's reign, the Church of Hagia Sofia ("Holy Wisdom") was constructed in the 530s. This church would become the center of Byzantine religious life and the center of the Eastern Orthodox form of Christianity. The 6th century was also a time of flourishing culture and even though Justinian closed the university at Athens, the Eastern Roman Empire produced notable people such as the epic poet Nonnus, the lyric poet Paul the Silentiary, the historian Procopius, the natural philosopher John Philoponus and others.

The conquests in the west meant that the other parts of the Eastern Roman Empire were left almost unguarded even though Justinian was a great builder of fortifications in Byzantine territories throughout his reign. Khosrau I of Persia had, as early as 540, broken the pact previously signed with Justinian and plundered Antiochia. The only way Justinian could forestall him was to increase the sum he paid to Khosrau I every year. The Balkans were subjected to repeated incursions where Slavs had first crossed the imperial frontiers during the reign of Justin I. The Slavs took advantage of the sparsely-deployed Byzantine troops and pressed on as far as the Gulf of Corinth. The Kutrigur Bulgars had also attacked in 540. The Slavs invaded Thrace in 545 and in 548 assaulted Dyrrachium, an important port on the Adriatic Sea. In 550, the Sclaveni pushed on as far to reach within 65 kilometers of Constantinople itself. In 559, the Eastern Roman Empire found itself unable to repel a great invasion of Kutrigurs and Sclaveni. Divided in three columns, the invaders reached Thermopylae, the Gallipoli peninsula and the suburbs of Constantinople. The Slavs feared the intact power of the Danube Roman fleet and of the Utigurs (paid by the Romans themselves) more than the resistance of the ill-prepared Byzantine imperial army. This time the Eastern Roman Empire was safe, but in the following years the Roman suzerainty in the Balkans was to be almost totally overwhelmed.

Soon after the death of Justinian in 565, the Germanic Lombards, a former imperial foederati tribe, invaded and conquered much of Italy. The Visigoths conquered Cordoba, the main Byzantine city in Spain, first in 572 and then definitively in 584. The last Byzantine strongholds in Spain were swept away twenty years later. The Turks emerged in Crimea, and in 577, a horde of some 100,000 Slavs had invaded Thrace and Illyricum. Sirmium, the most important Roman city on the Danube, was lost in 582, but the Eastern Roman Empire managed to maintain control of the river for several more years even though it increasingly lost control of the inner provinces.

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Empress Theodora and her retinue (fresco from Basilica of San Vitale, 6th century).

Justinian's successor, Justin II, refused to pay the tribute to the Sassanid Empire. This resulted in a long and harsh war which lasted until the reign of his successors Tiberius II and Maurice, and focused on the control over Armenia. Fortunately for the Byzantines, a civil war broke out in the Persian Empire. Maurice was able to take advantage of his friendship with the new king Khosrau II (whose disputed accession to the Persian throne had been assisted by Maurice) in order to sign a favorable peace treaty in 591. This treaty gave the Eastern Roman Empire control over much of western Armenia. Maurice reorganized the remaining Byzantine possessions in the west into two Exarchates, the Ravenna and the Carthage. Maurice increased the Exarchates' self-defense capabilities and delegated them to civil authorities.

The Avars and later the Bulgars overwhelmed much of the Balkans, and in the early 7th century the Sassanids invaded and conquered Egypt, Palestine, Syria and Armenia. The Persians were eventually defeated and the territories were recovered by Emperor Heraclius in 627. However, the unexpected appearance of the newly-converted and united Muslim Arabs took the territories by surprise from an empire exhausted from fighting against Persia, and the southern provinces were overrun. The Eastern Roman Empire's most catastrophic defeat of this period was the Battle of Yarmuk, fought in Syria. Heraclius and the military governors of Syria were slow to respond to the new threat, and Byzantine Mesopotamia, Syria, Egypt, and the Exarchate of Africa were permanently incorporated into the Muslim Empire in the 7th century, a process which was completed with the fall of Carthage to the Caliphate in 698.

The Lombards continued to expand in northern Italy, taking Liguria in 640 and conquering most of the Exarchate of Ravenna in 751, leaving the Byzantines with control of only small areas around the toe and heel of Italy, plus some semi-independent coastal cities like Venice, Naples, Amalfi and Gaeta.

The fight for survival

The Byzantine Empire at the accession of Leo III, c.717

The Empire's loss of territory was offset to a degree by consolidation and an increased uniformity of rule. Emperor Heraclius fully Hellenized the Empire by making Greek the official language, thus ending the last remnants of Latin and ancient Roman tradition. The use of Latin in government records (Latin titles such as Augustus and the concept of the Eastern Roman Empire being one with Rome) fell into abeyance, which allowed the empire to pursue its own identity.

Many historians mark the sweeping reforms made during the reign of Heraclius as the breaking-point with Byzantium's ancient Roman past. It is common to refer to the Eastern Roman Empire as "Byzantine" instead of as "East Roman" from this point. Religious rites and religious expression within the empire were now also noticeably different from the practices in the former imperial lands of western Europe.

Within the empire, the southern provinces differed significantly in culture and practice from those in the north, observing Monophysite Christianity rather than Chalcedonian Orthodox. The loss of the southern territories to the Arabs further strengthened Orthodox practices in the remaining provinces.

Constans II (reigned 641–668) subdivided the empire into a system of military provinces called themes in an attempt to improve local responses to the threat of constant assaults. Outside of the capital, urban life declined while Constantinople grew to become the largest city in the Christian world.

During Constans' reign the Byzantines completely withdrew from Egypt, and the Arabs launched numerous attacks on the islands of the Mediterranean Sea and Aegean Sea. Constans sent a fleet to attack the Arabs at Finike in 655, but was defeated: 500 Byzantine ships were destroyed in the battle, and the emperor himself came close to being killed. Only a civil war with the Shiites prevented an Arab plan to attack Constantinople.

Restored section of the fortifications that protected Constantinople during the medieval period.

In 658 the imperial army defeated the Slavs on the Danube River, temporarily slowing their advance into the Balkans. Constans, having attracted the hatred of the people of Constantinople, temporarily moved the capital to Syracuse. In 661 he launched an attack on the Lombard Duchy of Benevento in southern Italy. After some victories and ravages, he retreated to Naples. He was the last Eastern emperor to visit Rome until the 15th century. He was assassinated in Sicily not much later, and no serious attempt was made to reconquer southern Italy until the 9th century.

Arab attempts to conquer Constantinople were frustrated by the Byzantines' still-mysterious incendiary weapon Greek fire, their strong city walls and the skill of Byzantine generals and warrior-emperors such as Leo III the Isaurian (reign 717–741). Once the assaults were repelled, the empire's recovery resumed.

In his landmark work The History of the Decline and Fall of the Roman Empire, the 18th century historian Edward Gibbon depicted the Byzantine Empire of this time as effete and decadent. However, an alternative examination of the Byzantine Empire reveals a military superpower in the early Middle Ages. Scholars point to the empire's heavy cavalry (the cataphracts), its subsidy (albeit inconsistently) of a free and well-to-do peasant class forming the basis for cavalry recruitment, its extraordinarily in-depth defense systems (the themes), and its use of subsidies to make its enemies fight each other. Other factors include the empire's prowess at intelligence-gathering, a communications and logistics system based on mule trains, a superior navy (although often under-funded), and rational military strategies and doctrines (not dissimilar to those of Sun Tzu) that emphasized stealth, surprise, swift maneuvering and the marshaling of overwhelming force at the time and place of the Byzantine commander's choosing.

After the siege of 717 in which the Arabs suffered horrific casualties, the Caliphate was no longer a serious threat to the Byzantine heartland. It would take a different civilization, that of the Seljuk Turks, to finally drive the imperial forces out of eastern and central Anatolia.

The 8th century was dominated by controversy and religious division over iconoclasm. Icons were banned by Emperor Leo III, leading to revolts by iconophiles throughout the empire. After the efforts of Empress Irene, the Second Council of Nicaea met in 787 and affirmed that icons could be venerated but not worshipped. Irene also attempted a marriage alliance with Charlemagne. In theory, this alliance would have united the two 'Roman' empires and created a European superpower comparable in strength to ancient Rome. In practice, the two empires were so different that it is hard to see how such a union could have succeeded. Regardless, these plans were abandoned when Irene was deposed.

The iconoclast controversy returned in the early 9th century, only to be resolved once more in 843 during the regency of Empress Theodora (9th century), who restored the icons. These controversies further contributed to the disintegrating relations with the Roman Catholic Church and the Holy Roman Empire, both of which continued to increase their independence and power.

Golden Age

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The Byzantine Empire under Basil II, c.1025

The Byzantine Empire reached its height under the Macedonian emperors of the late 9th, 10th and early 11th centuries. During these years the Empire held out against pressure from the Roman church to remove Patriarch Photios, and gained control over the Adriatic Sea, southern Italy, and all of Bulgaria as it was under the Bulgarian tsar Samuel. The cities of the empire expanded, and prosperity was able to spread across the provinces thanks to the empire's new-found security. The population of the empire rose, and production increased, stimulating new demand while also helping to encourage trade. Culturally, this was a productive period of Byzantine history, as there was considerable growth in education and learning. Ancient texts were preserved and patiently re-copied. Byzantine art flourished, and brilliant mosaics graced the interiors of new churches, which were being built across the empire in this period.

The soldier emperors Nikephoros II Phokas (reigned 963-969) and John I Tzimiskes (969-976) expanded the empire well into Syria, defeating the emirs of north-west Iraq and reconquering Crete and Cyprus. At one point under John, the empire's armies even threatened Jerusalem, far to the south. The emirate of Aleppo and its neighbours became vassals of the empire in the east, where the greatest threat to the empire was the Egyptian Fatimid kingdom. Under the emperor Basil II (reigned 976-1025), the Bulgarians, who had conquered much of the Balkans from the Byzantines since their arrival three hundred years previously, became the target of annual campaigns by the Byzantine army. The war was to drag on for nearly twenty years, but eventually at the Battle of Kleidon the Bulgarians were completely defeated. The Bulgarian army was captured, and it is said that 99 out of every 100 men were blinded, with the remaining hundredth man left with one eye so as to lead his compatriots home. When Samuil of Bulgaria saw the broken remains of his once gallant army, he died of shock. In 1014, Bulgaria surrendered, and became part of the empire. This stunning victory restored to the empire the Danube frontier, which had not been held since the days of the emperor Heraclius (reigned 610-641). The empire also gained a new ally (yet sometimes also an enemy) in the new Varangian state in Kiev, from which the empire received an important mercenary force, the Varangian Guard, in exchange for Basil's sister Anna as a wife for Vladimir I of Kiev. Basil II also had relatives marry leaders of the Holy Roman Empire.

Emperor Basil II the Bulgar Slayer who reigned from 976 to 1025

The Byzantine Empire now stretched from Azerbaijan and Armenia in the east, to Calabria in Southern Italy to the west. Many successes had been achieved, ranging from the conquest of Bulgaria, to the annexation of Georgia and Armenia, to the total annihilation of an invading force of Egyptians outside Antioch. Yet even these victories were not enough; Basil considered the continued Arab occupation of Sicily (it had been lost to the Arabs c.902), to be an outrage. Accordingly, he planned to reconquer the island, which had belonged to the empire for over three hundred years (c.550-c.900). However, his death in 1025 put an end to the project. Basil's reign was the culmination of over three hundred years of desperate struggle, which had seen the Byzantine empire fighting for its very survival, and reaching the nadir of its fortunes with two sieges of Constantinople in 674-78, and 717-18. Yet the empire had clawed its way back from the brink of destruction, and by 1025 Byzantium was once again the greatest power in the Mediterranean. Such was the impression that the formidable Byzantine army built up during this period, that the mere threat of an Imperial Army marching eastwards was enough to keep local rulers in line.

The eleventh century was also momentous for its religious events. In 1054, relations between Greek-speaking Eastern and Latin-speaking Western traditions within the Christian Church reached a terminal crisis. Although there was a formal declaration of institutional separation, on July 16, when three papal legates entered the Hagia Sophia during mass on a Saturday afternoon and placed a bull (official papal document) of excommunication on the altar, the so-called Great Schism actually was the culmination of centuries of gradual separation. The schism was purported to stem from the Eastern Church's refusal to accept the western doctrine that the Holy Spirit came from the Father and the Son, and not the Father alone, in reality, however, there were a number of political interests involved in the division of the Christian Church. From this split, the modern (Roman) Catholic and Eastern Orthodox churches arose. This development was to be fateful indeed for the Byzantine empire.

Crisis and fragmentation

However, like Rome before it, Byzantium soon fell into a period of difficulties, caused to a large extent by the growth of aristocracy, which undermined the theme system. The succession of weak rulers who succeeded Basil II after 1025 disbanded the large armies which had been defending the eastern provinces from attack; instead gold was stockpiled in Constantinople, ostensibly in order to hire mercenaries should troubles arise. In fact, most of the money was frittered away in the form of gifts to favourites of the emperor, extravagant court banquets, and expensive luxuries for the imperial family.

Meanwhile, the remnants of the once-formidable armed forces were allowed to decay, to the point where they were no longer capable of functioning as an army. Elderly men with ill-maintained equipment mixed with new recruits who had never participated in a training exercise. Facing its old enemies, the Holy Roman Empire and the Abbasid Caliphate, the Eastern Roman Empire might have recovered, but around the same time new invaders appeared on the scene who had little reason to respect its reputation.

In 1040, the Normans, originally landless mercenaries from northern parts of Europe in search of plunder, began attacking the Byzantine strongholds in southern Italy. In order to deal with them, a mixed force of mercenaries and conscripts under the formidable George Maniakes was sent to Italy in 1042. Maniakes and his army engulfed the land in a fury of destruction, leaving a trail of burning ruins and shattered fortresses behind them. Any who opposed this terrifying advance were tortured to death; many were buried alive. However, before he could complete his campaign of annihilation, the general was recalled to Constantinople due to palace intrigue. Gripped by murderous rage at a serious of outrages against his wife and property by one of his rivals, he was proclaimed emperor by his troops, and led them across the Adriatic to victory against a loyalist army. However, a mortal wound led to his death shortly afterwards. With the opposition absent in the Balkans, the Normans were able to complete the expulsion of the Byzantines from Italy by 1071.

It was in Asia Minor, however, that the greatest disaster would take place. The Seljuk Turks, who were mainly interested in defeating Egypt under the Fatimids, nevertheless conducted a series of damaging raids into Armenia and eastern Anatolia, which was the main recruiting ground for Byzantine armies. With the imperial armies weakened by years of insufficient funding and civil warfare, Emperor Romanos IV Diogenes realised that a time of re-structuring and re-equipment was necessary. Consequently, he attempted to lead a defensive campaign in the east until his forces had recovered enough to defeat the Seljuks. However, due to treachery from his opponents who deserted him on the field of battle, he suffered a surprise defeat at the hands of Alp Arslan (sultan of the Seljuk Turks) at Manzikert in 1071. Romanus was captured, and although the Sultan's peace terms were not excessive, the battle was catastrophic for the Byzantine Empire in another way.

The Byzantine Empire at the accession of Alexios I Komnenos, c.1081

On his release, Romanos found that his enemies had conspired against him to place their own candidate on the throne in his absence. After two defeats in battle against the rebels, Romanos surrendered and suffered a horrific death by torture. The new ruler, Michael VII Doukas, refused to honour the treaty that had been signed by Romanus. In response, the Turks began to move into Anatolia in 1073, while the collapse of the old defensive system meant that they met no opposition. To make matters worse, chaos reigned as the empire's remaining resources were squandered in a series of disastrous civil wars. Thousands of Turkoman tribesmen crossed the unguarded frontier and moved into Anatolia. By 1080, an area of 30,000 square miles had been lost to the empire. It is almost impossible to overestimate the significance of these events, as within less than a decade more than half of the manpower of the empire had been lost, along with much of its grain supply. Thus the battle of Manzikert resulted in the greatest blow to the empire in its 700 years of history.

The Komnenoi and the crusaders

Alexios I Komnenos

"Good fortune conceals the genius of a general; adversity reveals it" - Horace.

After Manzikert, a partial recovery was made possible due to the efforts of the Komnenian dynasty. This is sometimes referred to as the Komnenian restoration of the Byzantine Empire. The first emperor of this royal line was Alexios I Komnenos (whose life and policies would be described by his daughter Anna Komnene in the Alexiad). Alexios' long reign of nearly 37 years was full of struggle. At his accession in 1081, the Byzantine Empire was in chaos after a prolonged period of civil war resulting from the defeat at Manzikert.

At the very outset of his reign, Alexios had to meet the formidable attack of the Normans under Robert Guiscard and his son Bohemund of Taranto, who took Dyrrhachium and Corfu, and laid siege to Larissa in Thessaly (see Battle of Dyrrhachium). Alexios led his forces in person against the Normans, yet despite his best efforts his army was destroyed in the field. Alexios himself was wounded in the battle, and for a time it looked as though the empire's final hour had come. However, at the moment of supreme crisis fate relented on the unfortunate Alexios, and the Norman danger was ended for the time being with Robert Guiscard's death in 1085.

This coin was struck by Alexios during his war against Robert Guiscard

However, Alexios's trials and tribulations were only just beginning. At the very moment when the Emperor urgently needed to raise as much revenue as possible from his shattered empire, taxation and the economy were in complete disarray. Inflation was spiralling out of control, the coinage was heavily debased, the fiscal system was confused (there were six different nomismata in circulation), and the imperial treasury was empty. In desperation, Alexios had been forced to finance his campaign against the Normans by using the wealth of the Orthodox Church, which had been put at his disposal by the Patriarch.

In 1087, Alexios must have despaired when news reached him of a new invasion. This time, the invaders consisted of a horde of 80,000 Pechenegs from north of the Danube, and they were heading for Constantinople. Without enough troops to repel this new threat, Alexios used cunning diplomacy to achieve a victory against the odds. Having bribed the Cumans, another barbarian tribe, to come to his aid, he advanced against the Pechenegs, who were caught by surprise and annihilated at the Battle of Levounion on 28 April 1091.

With stability at last achieved in the west, Alexios now had a chance to begin solving his severe economic difficulties and the disintegration of the empire's traditional defences. In order to reestablish the army, Alexios began to build a new force on the basis of feudal grants (próniai) and prepared a to advance against the Seljuks, who had conquered Asia Minor and were now established at Nicaea.

However, he still did not have enough manpower to recover the lost territories in Asia Minor, so once again he devised an intelligent solution to his predicament. Having been impressed by the abilities of the Norman cavalry at Dryrrhachium, he sent his ambassadors west to ask for reinforcements from Europe. The ambassadors dispatched their mission with great success - at the Council of Piacenza in 1095, Pope Urban II was impressed by Alexios's appeal for help, which spoke of the suffering of the Christians of the east, and hinted at a possible union of the eastern and western churches. Pope Urban wanted to find a way in which the martial energy of the western nobility could be channelled to benefit the church. Alexios's appeal offered a means not only to accomplish this goal, but also to consolidate the authority of the Pope over Christendom by uniting all Christian nations under one common cause.

The First Crusade

File:Jerusalem1099.jpg

Medieval manuscript depicting the Capture of Jerusalem during the First Crusade

On 27 November 1095, Pope Urban II called together a council of bishops and clergy in Clermont in France. There, amid a crowd of thousands who had come to hear his words, he urged all those present to take up arms under the banner of the Cross and launch a holy war to recover Jerusalem and the east from the 'infidel' Muslims. Enticed by the offering of eternal salvation to all those who took part in the great enterprise, many promised to carry out the Pope's command, and word of the Crusade soon spread across Europe.

The help which Alexios had wanted from the West was simply mercenary forces and not the immense hosts which soon arrived, to his consternation and embarrassment. The first group, under Peter the Hermit, he sent to Asia Minor, ordering them to stay close to the coast and await reinforcements. However, the unruly crusaders refused to listen and began looting and pillaging the local inhabitants, who were all Christian. As they marched on Nicaea, in 1096, they were caught by the Turks and massacred almost to the last man.

The second and much more serious host of knights, led by Godfrey of Bouillon, Alexios also led into Asia, promising to supply them with provisions in return for an oath of homage. By their victories, Alexios was able to recover for the Byzantine Empire a number of important cities and islands — Nicaea, Chios, Rhodes, Smyrna, Ephesus, Philadelphia, Sardis, and in fact much of western Asia Minor (1097–1099). This is ascribed by his daughter Anna as a credit to his policy and diplomacy, but good relations were not to last. The crusaders believed their oaths were made invalid when Alexios did not help them during the siege of Antioch (he had in fact set out on the road to Antioch, but had been persuaded to turn back by Stephen of Blois, who assured him that all was lost and that the expedition had already failed); Bohemund, who had set himself up as Prince of Antioch, briefly went to war with Alexios, but agreed to become Alexios' vassal under the Treaty of Devol in 1108.

Slow recovery

Despite his many successes, during the last twenty years of his life, Alexios lost much of his popularity. This was largely due to the harsh measures he was forced to take in order to save the embattled empire. Conscription was introduced, causing resentment among the peasantry, despite the pressing need for new recruits to the imperial army. In order to restore the imperial treasury, Alexios took measures to tax the aristocracy heavily; he also cancelled many of the exemptions from taxation that the church had previously enjoyed. In order to ensure that all taxes were paid in full, and to halt the cycle of debasement and inflation, he completely reformed the coinage, issuing a new gold hyperpyron (highly refined) coin for the purpose. By 1109, he had managed to restore order by working out a proper rate of exchange for the whole coinage. His new hyperpyron would be the standard Byzantine coin for the next two hundred years.

The final years of Alexios's reign were marked by persecution of the followers of the Paulician and Bogomil heresies — one of his last acts was to burn at the stake the Bogomil leader, Basil the Physician, with whom he had engaged in a theological controversy; by renewed struggles with the Turks (1110–1117); and by anxieties as to the succession, which his wife Irene wished to alter in favour of her daughter Anna's husband, Nikephorus Bryennios, for whose benefit the special title panhypersebastos ("honored above all") was created. This intrigue disturbed even his dying hours. Nevertheless, it is without doubt that Alexios' heroic efforts saved his empire from complete annihilation, and the measures he undertook were all urgently needed, despite their unpopularity. Alexios I Komnenos was a brave and determined emperor, and he deserves much of the credit for making possible the restoration of the empire that occurred under his successors.

John's restoration of the empire

Emperor John II Komnenos. During his reign (1118-1143) he earned near universal respect, even from the Crusaders, for his courage, dedication and piety.

Alexios' son John II Komnenos succeeded him in 1118, and was to rule until 1143. On account of his mild and just reign he has been called the Byzantine Marcus Aurelius. John was unusual for his lack of cruelty — despite his long reign, in an age where violence was the norm, he never had anyone killed or blinded. He was loved by his subjects, who gave him the name 'John the Good'. He was also an energetic campaigner, spending much of his life in army camps and personally supervising sieges.

A brief look at John's life gives an indication of the difficulties Byzantium faced in this period: enemies confronted the empire on all sides. An invasion of nomadic horsemen from the north threatened to overrun the Balkans. The Turks were harassing Byzantine territory in Asia Minor. However, this was an age where the empire depended on strong personal action by the emperor, and the way in which these problems were dealt with follows a pattern that was to recur throughout the reigns of the three Komneni emperors. John's intelligent defense soundly defeated the nomadic horsemen and the Danube frontier was secured.

John was then able to concentrate on Asia Minor, which became the focus of his attention for most of his reign. The Turks were pressing forward against the Byzantine frontier in western Asia Minor, and John was determined to drive them back. Thanks to John's energetic campaigning, Turkish attempts at expansion in Asia Minor were halted, and John prepared to take the fight to the enemy. In order to restore the region to Byzantine control, John led a series of well planned and executed campaigns against the Turks, one of which resulted in the reconquest of the ancestral home of the Komneni at Kastamonu. John quickly earned a formidable reputation as a wall-breaker, taking stronghold after stronghold from his enemies. Regions which had been lost to the empire ever since Manzikert were recovered and garrisoned. Yet resistance, particularly from the Danishmends of the north-east, was strong, and the difficult nature of holding down the new conquests is illustrated by the fact that Kastamonu was recaptured by the Turks even as John was in Constantinople celebrating its return to Byzantine rule. John persevered, however, and Kastamonu was soon changed hands once more. John advanced into north eastern Anatolia, provoking the Turks to attack his army. Yet once again John's forces were able to maintain their cohesion, and the Turkish attempt to inflict a second Manzikert on the emperor's army backfired when the Sultan, discredited by his failure to defeat John, was murdered by his own people.

Towards the end of his reign, John made a concerted effort to secure Antioch. On the way, he captured the southern coast of Asia Minor and Cilicia. He advanced into Syria at the head of his veteran army, which had been seasoned by a lifetime of campaigning. Although John fought hard for the Christian cause in the campaign in Syria, there was a famous incident where his allies Prince Raymond of Antioch and Count Joscelin II of Edessa sat around playing dice while John pressed the siege of an enemy town. These Crusader Princes were suspicious of each other and of John, and neither wanted the other to gain from participating in the campaign, while Raymond also wanted to hold on to Antioch, which he had agreed to hand over to John if the campaign was successful. Ultimately, Joscelin and Raymond conspired to keep John out of Antioch, and while he was preparing to lead a pilgrimage to Jerusalem and a further campaign, he accidentally grazed his hand on a poison arrow while out hunting. The poison set in, and shortly afterwards he died.

Historian J. Birkenmeier has recently argued that John's reign was the most successful of the Komnenian period. In "The development of the Komnenian army 1081-1180", he stresses the wisdom of John's approach to warfare, which focused on siege warfare rather than risky pitched battles. Birkenmeier argues that John's strategy of launching annual campaigns with limited, realistic objectives was a more sensible one than that followed by his son Manuel I. According to this view, John's campaigns benefited the Byzantine Empire because they protected the empire's heartland from attack while gradually extending its territory in Asia Minor. The Turks were forced onto the defensive, while John kept his diplomatic situation relatively simple by allying with the Western Emperor against the Normans of Sicily.

Overall, what is clear is that John II Komnenos left the empire a great deal better off than he had found it. Substantial territories had been recovered, and his successes against the invading Petchenegs, Serbs and Seljuk Turks, along with his attempts to establish Byzantine suzerainty over the Crusader States in Antioch and Edessa, did much to restore the reputation of his empire. His careful, methodical approach to warfare had protected the empire from the risk of sudden defeats, while his determination and skill had allowed him to rack up a long list of successful sieges and assaults against enemy strongholds. By the time of his death he had earned near universal respect, even from the Crusaders, for his courage, dedication and piety. His early death meant his work went unfinished — his last campaign might well have resulted in real gains for Byzantium and the Christian cause.

Map of the Byzantine Empire under Manuel Komnenos, c.1170. By this time, the empire was once again the most powerful state in the Mediterranean, with client states stretching from Hungary to the Kingdom of Jerusalem.

Manuel I Komnenos

Main article: Manuel I Komnenos

John's chosen heir, his son Manuel I Komnenos, was a worthy successor who had an optimistic outlook and saw possibilities everywhere. The Latin historian William of Tyre described Manuel as "beloved of God... a great-souled man of incomparable energy", whose "memory will ever be held in benediction". Manuel was further extolled by Robert of Clari as a "generous and worthy man". Famous for his charisma and enthusiasm for western customs, Manuel arranged jousting matches, even participating in them, an unusual and discomforting sight for the Byzantines. Indoctrinated with the idea of a universal Empire, and with a passion for theological debate, he was also perhaps the only chivalrous Emperor-Knight of Byzantium. He is a representative of a new kind of Byzantine ruler who was influenced by the contact with the western crusaders.

Eager to restore his empire to its past glories as the superpower of the Mediterranean world, Manuel pursued an energetic and ambitious foreign policy. In the process he made alliances with the Pope and the resurgent west, invaded Italy, successfully handled the passage of the dangerous Second Crusade through his empire, and established a Byzantine protectorate over the Crusader kingdoms of Outremer. Facing the Islamic jihad in the Holy Land, he made common cause with the Kingdom of Jerusalem and participated in a combined invasion of Fatimid Egypt. Manuel campaigned aggressively against his neighbours both in the west and in the east, defeating the Hungarians at the Battle of Sirmium in 1167 and placing the kingdoms of Hungary and Outremer under Byzantine hegemony. Disputes between the Catholic and Orthodox Churches occasionally harmed efforts at cooperation with the Latins; however, in the Crusader states in particular, Manuel was very successful in extending Byzantine influence. For example, Manuel participated in the building and decorating of many of the basilicas and Greek monasteries in the Holy Land, including the church of the Holy Sepulchre in Jerusalem, where thanks to his efforts the Byzantine clergy were allowed to perform the Greek liturgy each day. All this reinforced his position as overlord of the Crusader states, with his hegemony over Antioch and Jerusalem secured by agreement with Raynald, Prince of Antioch, and Amalric, King of Jerusalem respectively. This firm alliance with the crusaders must be regarded as one of the most positive achievements of Manuel Komnenos's reign.

The Komnenian army

At the beginning of the Komnenian period in 1081, the Byzantine Empire had been reduced to the smallest territorial extent in its history. Surrounded by enemies, and financially ruined by a long period of civil war, the empire's prospects had looked grim. Yet, through a combination of skill, determination and years of campaigning, Alexios, John and Manuel Komnenos managed to restore the power of the Byzantine Empire by constructing a new army from the ground up. The new force is known as the Komnenian army. It was both professional and disciplined. It contained formidable guards units such as the Varangian Guard and the 'Immortals' (a unit of heavy cavalry) stationed in Constantinople, and also levies from the provinces. These levies included Kataphraktoi cavalry from Macedonia, Thessaly and Thrace, and various other provincial forces such as Trebizond Archers from the Black Sea coast of Asia Minor. Under John II, a Macedonian division was maintained, and new native Byzantine troops were recruited from the provinces. As Byzantine Asia Minor began to prosper under John and Manuel, more soldiers were raised from the Asiatic provinces of Neokastra, Paphlagonia and even Seleucia (in the south east). Soldiers were also drawn from defeated peoples, such as the Pechenegs (cavalry archers), and the Serbs, who were used as settlers stationed at Nicomedia. Native troops were organised into regular units and stationed in both the Asian and European provinces. Komnenian armies were also often reinforced by allied contingents from Antioch, Serbia and Hungary, yet even so they generally consisted of about two-thirds Byzantine troops to one-third foreigners. Units of archers, infantry and cavalry were grouped together so as to provide combined arms support to each other. This Komnenian army was a highly effective, well-trained and well-equipped force, capable of campaigning in Egypt, Hungary, Italy and Palestine. However, like many aspects of the Byzantine state under the Komneni, its biggest weakness was that it relied on a powerful and competent ruler to direct and maintain its operations. This issue would eventually come back to haunt the empire; however, while Alexios, John and Manuel ruled (c.1081 to c.1180), the Komnenian army provided the empire with a period of security that enabled Byzantine civilization to flourish.

Twelfth century prosperity, art & culture

Urban revival and demographic growth

Recent research has revealed that the twelfth century was a time of significant growth in the rural economy, with rising population levels and extensive tracts of new agricultural land being brought into production. The widespread construction of new rural churches is a strong indication that prosperity was being generated even in remote areas. A steady increase in population led to a higher population density in many areas of the empire, and there is good evidence that the demographic increase was accompanied by the return of a thriving network of revitalised towns and cities. According to Alan Harvey in his book Economic expansion in the Byzantine Empire 900-1200, Archaeological evidence from both Europe and Asia Minor shows a considerable increase in the size of urban settlements, together with a ‘notable upsurge’ in new towns. For example, Harvey explains that in Athens the medieval town experienced a period of rapid and sustained growth, starting in the eleventh century and continuing until the end of the twelfth century. The 'agora' or 'marketplace', which had been deserted since late antiquity, began to be built over, and soon the town became an important centre for the production of soaps and dyes. Thessaloniki, the second city of the Empire, hosted a famous summer fair which attracted traders from across the Balkans and even further afield to its bustling market stalls. In Corinth, silk production fuelled a thriving economy.

Emperor Manuel I Komnenos who reigned from 1143 to 1180. He is shown wearing imperial regalia

Further evidence is provided by the coinage of the empire in this period. After a long period in the early middle ages during which the only coins were struck in Constantinople, the twelfth century saw the return of a provincial mint regularly operating at Thessaloniki. Yet the most convincing evidence for what Harvey calls a "substantial increase in the volume of money in circulation" comes from the quantity of coins found on archaeological sites. Thousands of coins have been found both at Athens and at Corinth. Some idea of the scale of the expansion that took place here can be gained from comparing the number of Corinthian coins dating from the reign of Theophilus (813-842), at the start of the expansion, with the number of coins dating from other periods. Harvey states that "About 150 coins can be attributed to this emperor compared with only twenty from the previous century". By contrast, excavations in 1939 revealed 4495 coins dating from the reign of Alexios I Komnenos (1081-1118) and 4106 coins from that of Manuel I Komnenos (1143-1180). At Athens, coins from the Komnenian period have also been found in abundance (over 4,000 from Manuel's reign).

Similar evidence of economic expansion has been discovered elsewhere in the empire, especially in the European provinces. In Asia Minor, some areas had become depopulated due to Turkish raiding in the late eleventh century. Yet as the Komnenian emperors built up extensive fortifications in rural areas during the twelfth century, repopulation of the countryside took place. The restoration of order in western Asia Minor enabled the demographic trend to resume its upward course after the setbacks of the late eleventh century, and indeed it was in the thirteenth century that this process reached its peak. It is quite possible that an increase in trade, made possible by the growth of the Italian city-states, may have been a factor in the growth of the economy. Certainly, the Venetians and others were active traders in the ports of the Holy Land, and they made a living out of shipping goods between the Crusader Kingdoms of Outremer and the West while also trading extensively with Byzantium and Egypt.

Overall, given that both population and prosperity increased substantially in this period, economic recovery in Byzantium appears to have been strengthening the economic basis of the state. This helps to explain how the Komnenian emperors, Manuel Komnenos in particular, were able to project their power and influence so widely at this time. Yet this is by no means the only effect of economic expansion in the empire; the effect on Byzantine Culture and society was also quite profound, as we shall see.

Artistic revival

Note - this text contains extracts from the Myriobyblos website: [2]. The extracts are indicated by inverted commas.

The new wealth being generated during this period had a positive impact on Byzantine cultural life. In artistic terms, the twelfth century was a very productive period in Byzantine history. There was a revival in the mosaic art, for example, with artists showing great interest in depicting natural landscapes with wild animals and scenes from the hunt. Mosaics became more realistic and vivid, with an increased emphasis on depicting three-dimensional forms. In the provinces, regional schools of Architecture began producing many distinctive styles that drew on a range of cultural influences. All this suggests that there was an increased demand for art, with more people having access to the necessary wealth to commission and pay for such work. According to N.H.Baynes in Byzantium, An Introduction to East Roman Civilization,

'The Lamentation of Christ' (1164), a fresco from the church of Saint Panteleimon in Nerezi near Skopje. It is considered a superb example of twelfth century Komnenian art.

"With its love of luxury and passion for colour, the art of this age delighted in the production of masterpieces that spread the fame of Byzantium throughout the whole of the Christian world. Beautiful silks from the work-shops of Constantinople also portrayed in dazzling color animals -lions, elephants, eagles, and griffins- confronting each other, or representing Emperors gorgeously arrayed on horseback or engaged in the chase."

"Yet the marvellous expansion of Byzantine art during this period, one of the most remarkable facts in the history of the empire, did not stop there. From the tenth to the twelfth century Byzantium was the main source of inspiration for the West. By their style, arrangement, and iconography the mosaics of St. Mark's at Venice and of the cathedral at Torcello clearly reveal their Byzantine origin. Similarly those of the Palatine Chapel, the Martorana at Palermo, and the cathedral of Cefalu, together with the vast decoration of the cathedral at Monreale, demonstrate the influence of Byzantium on the Norman Court of Sicily in the twelfth century. Hispano-Moorish art was unquestionably derived from the Byzantine. Romanesque art owes much to the East, from which it borrowed not only its decorative forms but the plan of some of its buildings, as is proved, for instance, by the domed churches of south-western France. Princes of Kiev, Venetian doges, abbots of Monte Cassino, merchants of Amalfi, and the Norman kings of Sicily all looked to Byzantium for artists or works of art. Such was the influence of Byzantine art in the twelfth century, that Russia, Venice, southern Italy and Sicily all virtually became provincial centres dedicated to its production."

Decline and fall of the Byzantine Empire

Death of Manuel Komnenos

The 12th century was marked by a series of wars against the Hungarians and the Serbs. Emperor Manuel Komnenos campaigned successfully in this region, forcing the rebellious Serbs to vassalage (1150-1152) and leading his troops into Hungary. In 1168, a decisive victory near Zemun enabled him to conclude a peace by which Dalmatia and other frontier territories were ceded to him. Manuel's success enabled him to choose the next king of Hungary, and he duly appointed Béla III in 1172.

However, from the moment of Manuel's death on 24 September 1180, the Byzantine Empire began a steep decline that would never be reversed. The succession of disastrous rulers who followed him quickly lost virtually all of the gains of the last hundred years. As a result of unwise demands for increased taxation, a rebellion was organised in 1185 in Bulgaria by the brothers Asen and Peter; it was successful and one year later these lands were officially lost. These events significantly contributed to the decline of the Byzantine empire. In view of the difficulties the empire faced in its Asian territories at this time, control of the Balkans was vital to imperial security. Therefore, the empire's losses to Bulgaria, and later Serbia, were a disaster, significantly reducing the amount of territory, manpower and revenue available to the state. They also meant that the easily-defensible Danube frontier was replaced by a long and vulnerable land frontier through the rich provinces of South Greece, Macedonia and Thrace with the two revived aggressive Slav states to the north.

The Fourth Crusade

The Byzantine Empire in 1265 (William R. Shepherd, Historical Atlas, 1911).

Of all the turbulent events that occurred during its long life, the Fourth Crusade had the most devastating effect on the empire. Although the stated intent of the crusade was to conquer Egypt, the leaders of the Crusade ran in to trouble when they found that considerably fewer men had responded to the call than had been expected. As a result, they could not afford to pay the Venetians for all the ships they had hired. After some time spent arguing over what to do next, the Venetians came up with a new proposal, and under their influence the Crusaders sailed to Constantinople, sacking the town of Zara (which was an enemy of Venice) on the way. In 1204 the Crusaders were able to gain entry to the city, via deception, and soon their troops poured into the city of Constantine, a city that had withstood every siege for nearly a thousand years. The Crusaders ransacked the wealth of a millennium, stretching back to the days of the Roman Empire. Buildings were burned down, and the four bronze horses which famously stand in Saint Mark's Square in Venice today, were looted from the Hippodrome at Constantinople. As a result, a short-lived feudal kingdom was founded (the Latin Empire), and Byzantine power was permanently weakened. After an initial rise of the power of Bulgaria in the first half of the 13th century, the Serbian Kingdom under the Nemanjic dynasty grew stronger and, with the weakening of Byzantium, formed a Serbian Empire in 1346.

Fall

File:Flag of Palaeologus Emperor.svg

The flag of the Palaiologan Emperors.

The flag of the Palaiologan Dynasty, depicting the Arms of Palaeologus.

After the sacking of Constantinople in 1204, three successor states were established. These states included the Empire of Nicaea, the Empire of Trebizond, and the Despotate of Epirus. The first state, controlled by the Palaiologan dynasty, managed to reclaim Constantinople in 1261 and defeated Epirus. This led to the reviving of the Eastern Roman Empire, but the empire's attention was more focused on Europe than on the Asian provinces that were the primary concern. For a while, the empire survived simply because the Muslims were too divided to attack. However, the unifying influence of Osman I (1258–1326) allowed the newly founded Ottoman Empire (1299-1923) to overrun many Byzantine territories leaving only a handful of port cities.

The Byzantine Empire around year 1400.

The Eastern Roman Empire appealed to the west for help, but they would only consider sending aid in return for reuniting the churches. Church unity was considered, and occasionally accomplished by law, but the Orthodox citizens would not accept Roman Catholicism. Some western mercenaries arrived to help, but many preferred to let the empire die, and did nothing as the Ottomans picked apart the remaining territories.

File:Palaeologus-flag.png

The Flag of the Empire under the Palaiologan dynasty

Constantinople was initially not considered worth the effort of conquest, but with the advent of cannon, the walls (which had been impenetrable for over 1000 years, although the Fourth Crusade crossed them by treachery rather than by force) no longer offered adequate protection against the Ottomans. The Fall of Constantinople finally came after a two-month siege by Mehmed II on May 29, 1453. The last Byzantine emperor, Constantine XI Palaiologos, was last seen entering deep into the fighting of an overwhelmingly outnumbered civilian army, against the invading Ottomans on the ramparts of Constantinople. Mehmed II also conquered Mistra in 1460 and Trebizond in 1461.

Mehmed and his successors continued to consider themselves proper heirs to the Byzantine Empire until the demise of the Ottoman Empire in the early 20th century. By the end of the 15th century, the Ottoman Empire had established its firm rule over Asia Minor and parts of the Balkan peninsula.

Meanwhile, the role of the emperor as a patron of Eastern Orthodoxy was now claimed by the Grand Dukes of Muscovy starting with Ivan III. His grandson, Ivan IV, would become the first Tsar of Russia (tsar, also spelled czar, is a term derived from the Latin word caesar). Their successors supported the idea that Moscow was the proper heir to Rome and Constantinople. Empress Catherine the Great (1762-1796), launched a campaign against the Ottomans to capture Constantinople and recreate the Byzantine Empire under Russian control, but despite gains in the Crimea her forces failed to take the city. The idea of the Russian Empire as the new, Third Rome was kept alive until its demise in 1917, with the Russian revolution.

Technically, the Byzantine Empire lived on in the city of Monemvasia in the Morea, until 1471, when the last "Despot" of the Morea, Demetrius Palaeologus, now living in Rome under the protection of the Pope, sold it to the latter for cash. Meanwhile, his nephew, and the nephew of the last Emperor, Constantine XI Palaeologus, Andreas Palaeologus had inherited the defunct title of Byzantine Emperor and used it since 1465. Even though the rest of the world had acknowledged the Ottoman conquest of Constantinople, the Byzantine Empire, and officially, the Roman Empire, and the Roman heritage, hobbled on until Andreas' death in 1503. By then, the glory of the Romans had been reduced down to a man who had lived in the streets as a pauper for most of his life ruling an empire that didn't exist anymore.

The marvelous and powerful story of the Roman Kingdom, Roman Republic, Roman Empire, and finally the "Byzantine" Empire that had gone on for 2,256 Ab urbe condita, and left its mark on all of human civilization, was now over.

Reasons for the collapse of the Byzantine Empire

The arrival of the Seljuks

Map of the changes in borders of the Byzantine Empire

One possible explanation for the collapse of the Byzantine Empire is the permanent settlement of Anatolia by the Seljuks, a Turkic peoples. Although the three competent Komnenian emperors, especially Manuel I Komnenos (r.1143-1180), may have had the power to expel the outnumbered Seljuks, several factors combined to ensure that they never did so.

It is worth remembering that the Byzantines had faced invasion in Asia Minor for centuries. In the seventh and eighth centuries, in particular, first the Persians and then the Arabs launched major offensives into the region. Yet these invaders ultimately failed to establish themselves in Byzantine territory.

However, a period of civil war in the late eleventh century enabled the Turks to make huge inroads into Byzantine territory. In many places, usurpers used mercenary Turkish troops to occupy strategic towns, only for those mercenaries to take the towns for themselves when the usurpers had departed. Thus by 1095, virtually the whole of Asia Minor, comprising about 70% of the Byzantine Empire, had been lost.

The First Crusade was emperor Alexios I Komnenos' attempt to retake the lost territories with help from the west. However, he had merely wanted a new source of manpower for the imperial forces, not fully independent armies with their own agendas crossing his territory. As a result, Alexios was unable to derive much of the expected benefit from the Crusade, though it did at least help him to recover Nicaea and western Asia Minor.

The emperor John II Komnenos launched frequent campaigns against the Turks. Yet opposition was fierce, and Turkish counter-attacks common. John, like Basil II before him, was a slow but steady campaigner. His armies made careful measured gains over time, rarely exposing themselves to excessive risks, but nevertheless advancing inexorably towards their objectives. Turkish incursions into Byzantine territory were defeated, and John's forces took the fight to the enemy, occupying many towns and cities across Asia Minor. However, the Turks were resilient, and they did not allow themselves to be decisively defeated in any one engagement. They knew that it was difficult for the emperor to remain in one theatre of war for a long time, as events elsewhere often intervened that required his attention.

Under John's successor, Manuel Komnenos, the focus of imperial attention shifted away from Asia Minor, and onto the west and the Crusader states. Manuel pursued a policy of fortification in his Asiatic provinces, for which he was praised by the Byzantine historian Niketas Choniates. There is evidence that previously deserted areas were repopulated, and that thanks to Manuel's new defences, security was improved in Byzantine Asia Minor. However, although Manuel could not have known it at the time, his reign saw the last years of Byzantine predominance in Asia. It is thus doubly unfortunate that he did not concentrate his efforts on the recovery of the Anatolian interior, as the empire would never again be in a position to attempt this after his death. His only serious effort at reconquest backfired at Myriokephalon in 1176, when his army was ambushed and his valuable siege equipment lost. Thus the empire's position in Asia Minor in 1180 was little different in terms of territory than it had been under John II in 1143.

From 1180 onwards, the Byzantine empire declined rapidly, as a series of disastrously incompetent emperors managed to undo the gains of the past hundred years. The Fourth Crusade in 1204 did incalculable damage to the empire, and even though a shortlived restoration under the empire of Nicaea culminated in the recovery of Constantinople, the empire never recovered the position it had held under John II and Manuel I.

It has been argued that it was never in the interests of the Komneni to expel the Turks, as the expansion back into Anatolia would have meant sharing more power with the feudal lords, thus weakening their power. If this is so, it is deeply ironic, as re-conquering Anatolia may have saved the Eastern Roman Empire in the long run. Yet any explanation of the change from Byzantine to Turkish rule in Asia Minor should ideally give weight to the strengths of the victors as well as the weaknesses of the defeated. Once this is done, it is hard to assess the responsibility of individuals for the changes that occurred in Asia Minor during this period.

The structure of the military

Another factor in the collapse of the empire may have been the demise of the 'theme' system, which had supplied large numbers of troops for the empire in earlier centuries.

The first advantage of the theme system was its numerical strength. It is thought that the Byzantine field army under Manuel I Komnenos (r. 1143-1180) numbered some 40,000 men. However, there is some evidence that the thematic army that had existed in the ninth century had provided the empire with a numerically superior force, stationed in the provinces, that provided greater defense in depth. This is not to say that the Komnenian army was any less effective in battle (the thematic army's success rate was just as varied as that of its Komnenian counterpart); it is more the case that, because it was a smaller, more centralised force, the twelfth century army required a greater degree of competent direction from the emperor. Although formidable under an energetic leader, the Komnenian army did not work so well under incompetent or uninterested emperors. The greater independence of the thematic army had provided the early empire with a structural advantage that was now lost.

The other key advantage of the theme system was that it offered the Byzantine state good value for money. It provided a means of cheaply mobilising large numbers of men. The demise of the system meant that armies became more expensive in the long run. However, the considerable wealth of the Komnenian emperors, their constant attention to military matters, and their frequent energetic campaigning, largely made up for this change. But the luck of the empire in having the talented Komneni to provide capable leadership could not hold out forever. After the death of Manuel I Komnenos in 1180, these structural weakness began to manifest themselves in military decline. From 1180 on, Byzantine emperors found it increasingly difficult to find sufficient funds for the military.

After 1204 the emperors of Nicaea continued some aspects of the system established by the Komneni. However, despite the restoration of the Byzantine empire in 1261, the Byzantines never again possessed the same levels of wealth, territory and manpower that had been available to the Komnenian emperors and their predecessors. As a result, the military was constantly short of funds. Yet worse was to come. Particularly after the death of Michael VIII Palaiologos in 1282, unreliable mercenaries such as the grand Catalan Company came to form an ever larger proportion of the remaining forces.

For all of the reasons above, it is possible to argue that the demise of the theme system was a great loss to the Byzantine empire. Although it took centuries to become fully apparent, one of the main institutional strengths of the Byzantine state was now gone. Thus it was not the army itself that was to blame for the decline of the empire, but rather the system that supported it. Byzantium had come to rely too much on individual emperors. Without strong underlying institutions that would always be there, whether the emperor was good or bad, the state was extremely vulnerable in times of crisis.

Legacy and importance

The city of Constantinople in 1453.

Byzantium was arguably the only stable state in Europe during the Middle Ages. Its expert military and diplomatic power ensured inadvertently that Western Europe remained safe from many of the more devastating invasions from eastern peoples, at a time when the Western Christian kingdoms might have had difficulty containing it (this role was mirrored in the north by the Russian states of Kiev, Vladimir-Suzdal and Novgorod). Constantly under attack during its entire existence, the Byzantine Empire shielded Western Europe from Persians, Arabs, Seljuk Turks, and for a time, the Ottomans.

The 20th century has seen an increased interest by historians to understand the empire, and its impact on European civilization is only recently being recognised.

Economy

The Byzantine economy was the most advanced in Europe for many centuries. The Byzantine Solidus was the internationally preferred currency for 700 years, only gradually being superseded by Italian currencies (particularly that of Venice) after 1204. The wealth of the empire was unmatched by any state in Europe, and its capital was one of the wealthiest cities in the world. This economic wealth was helped enormously by the fact that Byzantium was the most important western terminal of the Silk Road. It was also the single most important commercial center of Europe for much of the Medieval era, which status it held until Venice began to overtake Constantinople during the thirteenth and fourteenth centuries.

One of the economic foundations of the empire was trade. Constantinople was located on important east-west and north-south trade routes. Trebizond was an important port in the eastern trade. The exact routes varied over the years with wars and the political situation. Imports and exports were uniformly taxed at ten percent.

Raw silk was bought from China and India and made up into fine brocades and cloth-of-gold that commanded high prices through the world. Silk processing was an imperial monopoly, only processed in imperial factories, and sold to authorized buyers. Later, silk worms were smuggled into the Empire and the overland silk trade became less important. Other exports included gold jewelry, enameled work, and fine carvings in ivory and semi-precious stone. In other parts of the empire, wine was made and exported to the north. Furs, slaves, timber, metals, and amber were imported from the north, and dried fish from the south.

Commercial life in the Byzantine empire was extensively and minutely regulated by the state. Interest rates, profits, and prices were set by law, and enforced through a system of guilds. There was always full employment: It was very difficult to fire an employee, and any able-bodied man who was "idle" was required to take a public-works job.

The sack of Constantinople by Latin crusaders in 1204 was an economic catastrophe. As one Crusader, Geoffrey of Villehardouin, wrote of the sack of the Byzantine Capital in 1204,

"... Never, since the world was created, had so much booty been won in any city."

By the early thirteenth century, the Crusaders had altered the trade routes to the advantage of the Italian city-states. Although the Palaiologoi took back Constantinople in 1261, the empire's economy never entirely recovered. Territorial gains by the Turks in Asia Minor forced Constantinople to look elsewhere for its food supply. For political and military reasons the weakened empire was forced to grant concessions to Italian traders, reducing tax revenues. Furthermore, the Italians had acquired silk worms, reducing the value of the imperial monopoly. For the last two centuries of its existence, the ever declining territories and revenues of the Byzantine Empire were never enough to pay for the cost of its defence. This situation greatly contributed to the eventual collapse of the empire.

Science and law

See also: Byzantine medicine and Byzantine law

Byzantium played an important role in the transmission of classical knowledge to the Islamic world and to Renaissance Italy. Its rich historiographical tradition preserved ancient knowledge upon which splendid art, architecture, literature and technological achievements were built. It is not an altogether unfounded assumption that the Renaissance could not have flourished were it not for the groundwork laid in Byzantium, and the flock of Greek scholars to the West after the fall of the Empire.

The Emperor Justinian I's formation of a new code of law, the Corpus Juris Civilis, and the revisions it constantly underwent (most notably in the Macedonian Dynasty), had a clear effect on the evolution of jurisprudence. The Codex itself compiled all previous statutes of Roman emperors, paved the way for a more developed system of appeals courts and a system of maritime law which strongly influenced their modern equivalents. In this Byzantium arguably contributed more towards the evolution of jurisprudence and modern legal systems than its direct predecessor, Roman law.

Religion

Modern day church with Palaiologos flag.

The Byzantine Empire had a major influence upon Orthodox Christianity . This was embodied in the Byzantine version of Christianity, which spread Orthodoxy and eventually led to the creation of the so-called "Byzantine commonwealth" (a term coined by 20th-century historians) throughout Eastern Europe. Early Byzantine missionary work spread Orthodox Christianity to various Slavic peoples, where it still is a predominant religion. Such modern-day countries are Bulgaria, the Former Yugoslav Republic of Macedonia, Montenegro, Russia, Serbia, Romania and Ukraine; of course, it has also remained the official religion of the Greeks via the uninterrupted continuity of the Greek Orthodox Church. Less well known in the West is the influence of the Byzantine religious sensibility on the millions of Christians in Ethiopia, the Coptic Christians of Egypt, and the Christians of Armenia, though they all belong to the Oriental Orthodox (as opposed to the Byzantine Eastern Orthodox) Faith.

Robert Byron, one of the first 20th century Philhellenes, argued that the greatness of Byzantium lay in what he described as "the Triple Fusion": that of a Roman body, a Greek mind and an oriental, mystical soul.

Art, architecture, and literature

See also: Byzantine music

Byzantine Art and Byzantine Architecture were largely based around the Christian story and its heralds, and the importance of icons in Orthodox society. In terms of architecture, Byzantines emphasized the Dome, the arch and the Grecian cross lay out. It is evidenced today in countless examples of old Byzantine Churches with their traditional mosaics depicting Saints and figures from the Bible. Its impact was such that it spawned a Neo-Byzantine architectural revival in later years. Byzantine Art was also important in this respect, its impact on Orthodoxy can be witnessed across southeast Europe, Russia, the Holy Land and parts of the Middle East, but also in those areas of Turkey where it was allowed to survive.

The finest Byzantine literary works were Hymns and devotionals. The other area where the Byzantines excelled was in practical writing. While rarely works of genius, a series of competent, diligent writers, both male and female, produced many works of practical value in the fields of public administration, military affairs, and the practical sciences. The early theological work of the Byzantines was important in the development of western thought. Historiography influenced later Russian chroniclers.

Most of the writing was in classical Greek. Vernacular literature developed much more slowly than in the west. There was little fiction, the best-known work being the epic poem Digenis Acritas, written in something approaching the vernacular. Much of the writing of the day was history, theology, biography, and hagiography. Many letters have survived, some work-a-day correspondence, a few minor masterpieces, as well as a few large encyclopedic works, such as the huge Suda. Perhaps the Byzantine empire's greatest contribution to literature was their careful preservation of the best works of the ancient world, as well as compilations of works on certain subjects, with certain revisions, most specifically in the fields of medicine and history.

Civil service and the government

The Byzantine State differed from other States of its day in that it emphasized the importance of a rigid, semi-professional Civil Service rather than direct rule, and the appointment of the Monarch. The Civil Administration can largely be divided into three groups, the Palatine Administration, the Provincial Government and the Central Civil Service. Within this context, the system can be divided into two further sub-groupings, Judicial Officers and Financial Officers who were spread across the 13 permanent Departments of State (in the Central Civil Service).

In this it can be said it anticipates the systems of many modern nation states, and, despite the occasionally derogatory use of the word "Byzantine", it had a distinct ability for reinventing itself in accordance with the Empire's situation. In this it was far more stable than other European systems of government at the time, and contributed clearly towards the evolution of Political science and the system of government.

See also

• Western Roman Empire
• List of Byzantine Empire-related topics
• Roman Empire
• Roman Emperors
• Byzantine Emperors
• History of Greece
• Roman and Byzantine Greece
• History of the Ottoman Empire
• History of the Balkans
• History of Europe
• History of the Middle East
• History of Rome
• Latin Empire
• Lombards
• Empire of Nicaea
• Empire of Trebizond
• Despotate of Epirus
• Despotate of Morea
• Byzantine currency
• Byzantine art
• Byzantine architecture
• Byzantine aristocracy and bureaucracy
• Byzantine army
• Byzantine battle tactics
• Byzantine navy
• Byzantine university
• Comnenus
• Palaeologus
• Eastern Rite Catholic Churches
• Eastern Orthodox Church Calendar
• Derogatory use of Byzantine
• Byzantium after Byzantium

Bibliography

• Ostrogorsky, Georg (1969). 2nd edition (ed.). History of the Byzantine State. New Brunswick (NJ). ISBN 0-8135-1198-4.{{cite book}}: CS1 maint: numeric names: editors list (link) (Georgije Ostrogorski, Георгије Острогорски)
• Warren Treadgold. "A History of the Byzantine State and Society", Stanford, 1997.
• Helene Ahrweiler, "Studies on the Internal Diaspora of the Byzantine Empire", Harvard University Press, 1998.
• John Julius Norwich, "Byzantium", 3 Volumes, Viking, 1991.
• Runciman, Steven (1966). Byzantine Civilisation. Edward Arnold (Publishers) Ltd. ISBN 1-56619-574-8.
• J.W. Birkenmeier, The Development of the Komnenian Army 1081-1180
• Helene Ahrweiler, Les Europeens, Herman (Paris), 2000.
• Steven Runciman, The Emperor Romanus Lecapenus and his Reign, University Press (Cambridge), 1990.
• Edward Gibbon, Decline and Fall of the Roman Empire.
• Norman Cantor, Medieval History, the Life and Death of a Civilization, 1963
• J.M. Hussey, The Cambridge Medieval History, Volume IV — The Byzantine Empire Part I, Byzantium and its Neighbors, Cambridge University Press 1966
• Dr. David Turner. "The Empire Strikes Back: The alternative "History" of Europe". Romiosini: Hellenism in the Middle Ages. Retrieved March 6. {{cite web}}: Check date values in: |accessdate= (help); Unknown parameter |accessyear= ignored (|access-date= suggested) (help)

External links

• Ruminations on Romanisation in the East: Or, the Metanarrative in History
• Christian Hellenism and the Byzantines
• Byzantium: Byzantine studies on the Internet
• What, If Anything, Is A Byzantine? by Prof. Clifton R. Fox
• Orthodox Empire
• 12 Byzantine Rulers by Lars Brownworth of The Stony Brook School, an independent college preparatory school; audio lectures.
• 18 centuries of Roman Empire by Howard Wiseman (Maps of the Roman/Byzantine Empire throughout its lifetime)
• Rome & Romania, 27 BC–1453 AD (Detailed maps of Rome/Byzantium and its neighbors)
• Byzantine Glory — the mosaic of Byzantine History and Culture
• The Economic History of Byzantium