[Footnote 74: The account of the negotiation is taken from the fragments of Peter the Patrician, in the Excerpta Legationum, published in the Byzantine Collection. Peter lived under Justinian; but it is very evident, by the nature of his materials, that they are drawn from the most authentic and respectable writers.]
"It well becomes the Persians," replied Galerius, with a transport of fury, which seemed to convulse his whole frame, "it well becomes the Persians to expatiate on the vicissitudes of fortune, and calmly to read us lectures on the virtues of moderation. Let them remember their own moderation, towards the unhappy Valerian. They vanquished him by fraud, they treated him with indignity. They detained him till the last moment of his life in shameful captivity, and after his death they exposed his body to perpetual ignominy." Softening, however, his tone, Galerius insinuated to the ambassador, that it had never been the practice of the Romans to trample on a prostrate enemy; and that, on this occasion, they should consult their own dignity rather than the Persian merit. He dismissed Apharban with a hope that Narses would soon be informed on what conditions he might obtain, from the clemency of the emperors, a lasting peace, and the restoration of his wives and children. In this conference we may discover the fierce passions of Galerius, as well as his deference to the superior wisdom and authority of Diocletian. The ambition of the former grasped at the conquest of the East, and had proposed to reduce Persia into the state of a province. The prudence of the latter, who adhered to the moderate policy of Augustus and the Antonines, embraced the favorable opportunity of terminating a successful war by an honorable and advantageous peace. 
[Footnote 75: Adeo victor (says Aurelius) ut ni Valerius, cujus nutu omnis gerebantur, abnuisset, Romani fasces in provinciam novam ferrentur Verum pars terrarum tamen nobis utilior quaesita.]
In pursuance of their promise, the emperors soon afterwards appointed Sicorius Probus, one of their secretaries, to acquaint the Persian court with their final resolution. As the minister of peace, he was received with every mark of politeness and friendship; but, under the pretence of allowing him the necessary repose after so long a journey, the audience of Probus was deferred from day to day; and he attended the slow motions of the king, till at length he was admitted to his presence, near the River Asprudus in Media. The secret motive of Narses, in this delay, had been to collect such a military force as might enable him, though sincerely desirous of peace, to negotiate with the greater weight and dignity. Three persons only assisted at this important conference, the minister Apharban, the praefect of the guards, and an officer who had commanded on the Armenian frontier.  The first condition proposed by the ambassador is not at present of a very intelligible nature; that the city of Nisibis might be established for the place of mutual exchange, or, as we should formerly have termed it, for the staple of trade, between the two empires. There is no difficulty in conceiving the intention of the Roman princes to improve their revenue by some restraints upon commerce; but as Nisibis was situated within their own dominions, and as they were masters both of the imports and exports, it should seem that such restraints were the objects of an internal law, rather than of a foreign treaty. To render them more effectual, some stipulations were probably required on the side of the king of Persia, which appeared so very repugnant either to his interest or to his dignity, that Narses could not be persuaded to subscribe them. As this was the only article to which he refused his consent, it was no longer insisted on; and the emperors either suffered the trade to flow in its natural channels, or contented themselves with such restrictions, as it depended on their own authority to establish.
[Footnote 76: He had been governor of Sumium, (Pot. Patricius in Excerpt. Legat. p. 30.) This province seems to be mentioned by Moses of Chorene, (Geograph. p. 360,) and lay to the east of Mount Ararat. * Note: The Siounikh of the Armenian writers St. Martin i. 142.—M.]
As soon as this difficulty was removed, a solemn peace was concluded and ratified between the two nations. The conditions of a treaty so glorious to the empire, and so necessary to Persia Persian, may deserve a more peculiar attention, as the history of Rome presents very few transactions of a similar nature; most of her wars having either been terminated by absolute conquest, or waged against barbarians ignorant of the use of letters. I. The Aboras, or, as it is called by Xenophon, the Araxes, was fixed as the boundary between the two monarchies.  That river, which rose near the Tigris, was increased, a few miles below Nisibis, by the little stream of the Mygdonius, passed under the walls of Singara, and fell into the Euphrates at Circesium, a frontier town, which, by the care of Diocletian, was very strongly fortified.  Mesopotomia, the object of so many wars, was ceded to the empire; and the Persians, by this treaty, renounced all pretensions to that great province. II. They relinquished to the Romans five provinces beyond the Tigris.  Their situation formed a very useful barrier, and their natural strength was soon improved by art and military skill. Four of these, to the north of the river, were districts of obscure fame and inconsiderable extent; Intiline, Zabdicene, Arzanene, and Moxoene;  but on the east of the Tigris, the empire acquired the large and mountainous territory of Carduene, the ancient seat of the Carduchians, who preserved for many ages their manly freedom in the heart of the despotic monarchies of Asia. The ten thousand Greeks traversed their country, after a painful march, or rather engagement, of seven days; and it is confessed by their leader, in his incomparable relation of the retreat, that they suffered more from the arrows of the Carduchians, than from the power of the Great King.  Their posterity, the Curds, with very little alteration either of name or manners,  acknowledged the nominal sovereignty of the Turkish sultan. III. It is almost needless to observe, that Tiridates, the faithful ally of Rome, was restored to the throne of his fathers, and that the rights of the Imperial supremacy were fully asserted and secured. The limits of Armenia were extended as far as the fortress of Sintha in Media, and this increase of dominion was not so much an act of liberality as of justice. Of the provinces already mentioned beyond the Tigris, the four first had been dismembered by the Parthians from the crown of Armenia;  and when the Romans acquired the possession of them, they stipulated, at the expense of the usurpers, an ample compensation, which invested their ally with the extensive and fertile country of Atropatene. Its principal city, in the same situation perhaps as the modern Tauris, was frequently honored by the residence of Tiridates; and as it sometimes bore the name of Ecbatana, he imitated, in the buildings and fortifications, the splendid capital of the Medes.  IV. The country of Iberia was barren, its inhabitants rude and savage. But they were accustomed to the use of arms, and they separated from the empire barbarians much fiercer and more formidable than themselves. The narrow defiles of Mount Caucasus were in their hands, and it was in their choice, either to admit or to exclude the wandering tribes of Sarmatia, whenever a rapacious spirit urged them to penetrate into the richer climes of the South.  The nomination of the kings of Iberia, which was resigned by the Persian monarch to the emperors, contributed to the strength and security of the Roman power in Asia.  The East enjoyed a profound tranquillity during forty years; and the treaty between the rival monarchies was strictly observed till the death of Tiridates; when a new generation, animated with different views and different passions, succeeded to the government of the world; and the grandson of Narses undertook a long and memorable war against the princes of the house of Constantine.
[Footnote 77: By an error of the geographer Ptolemy, the position of Singara is removed from the Aboras to the Tigris, which may have produced the mistake of Peter, in assigning the latter river for the boundary, instead of the former. The line of the Roman frontier traversed, but never followed, the course of the Tigris. * Note: There are here several errors. Gibbon has confounded the streams, and the towns which they pass. The Aboras, or rather the Chaboras, the Araxes of Xenophon, has its source above Ras-Ain or Re-Saina, (Theodosiopolis,) about twenty-seven leagues from the Tigris; it receives the waters of the Mygdonius, or Saocoras, about thirty-three leagues below Nisibis. at a town now called Al Nahraim; it does not pass under the walls of Singara; it is the Saocoras that washes the walls of that town: the latter river has its source near Nisibis. at five leagues from the Tigris. See D'Anv. l'Euphrate et le Tigre, 46, 49, 50, and the map.—— To the east of the Tigris is another less considerable river, named also the Chaboras, which D'Anville calls the Centrites, Khabour, Nicephorius, without quoting the authorities on which he gives those names. Gibbon did not mean to speak of this river, which does not pass by Singara, and does not fall into the Euphrates. See Michaelis, Supp. ad Lex. Hebraica. 3d part, p. 664, 665.—G.]
[Footnote 78: Procopius de Edificiis, l. ii. c. 6.]
[Footnote 79: Three of the provinces, Zabdicene, Arzanene, and Carduene, are allowed on all sides. But instead of the other two, Peter (in Excerpt. Leg. p. 30) inserts Rehimene and Sophene. I have preferred Ammianus, (l. xxv. 7,) because it might be proved that Sophene was never in the hands of the Persians, either before the reign of Diocletian, or after that of Jovian. For want of correct maps, like those of M. d'Anville, almost all the moderns, with Tillemont and Valesius at their head, have imagined, that it was in respect to Persia, and not to Rome, that the five provinces were situate beyond the Tigris.]
[Footnote 791: See St. Martin, note on Le Beau, i. 380. He would read, for Intiline, Ingeleme, the name of a small province of Armenia, near the sources of the Tigris, mentioned by St. Epiphanius, (Haeres, 60;) for the unknown name Arzacene, with Gibbon, Arzanene. These provinces do not appear to have made an integral part of the Roman empire; Roman garrisons replaced those of Persia, but the sovereignty remained in the hands of the feudatory princes of Armenia. A prince of Carduene, ally or dependent on the empire, with the Roman name of Jovianus, occurs in the reign of Julian.—M.]
[Footnote 80: Xenophon's Anabasis, l. iv. Their bows were three cubits in length, their arrows two; they rolled down stones that were each a wagon load. The Greeks found a great many villages in that rude country.]
[Footnote 801: I travelled through this country in 1810, and should judge, from what I have read and seen of its inhabitants, that they have remained unchanged in their appearance and character for more than twenty centuries Malcolm, note to Hist. of Persia, vol. i. p. 82.—M.]
[Footnote 81: According to Eutropius, (vi. 9, as the text is represented by the best Mss.,) the city of Tigranocerta was in Arzanene. The names and situation of the other three may be faintly traced.]
[Footnote 82: Compare Herodotus, l. i. c. 97, with Moses Choronens. Hist Armen. l. ii. c. 84, and the map of Armenia given by his editors.]
[Footnote 83: Hiberi, locorum potentes, Caspia via Sarmatam in Armenios raptim effundunt. Tacit. Annal. vi. 34. See Strabon. Geograph. l. xi. p. 764, edit. Casaub.]
[Footnote 84: Peter Patricius (in Excerpt. Leg. p. 30) is the only writer who mentions the Iberian article of the treaty.]
The arduous work of rescuing the distressed empire from tyrants and barbarians had now been completely achieved by a succession of Illyrian peasants. As soon as Diocletian entered into the twentieth year of his reign, he celebrated that memorable aera, as well as the success of his arms, by the pomp of a Roman triumph.  Maximian, the equal partner of his power, was his only companion in the glory of that day. The two Caesars had fought and conquered, but the merit of their exploits was ascribed, according to the rigor of ancient maxims, to the auspicious influence of their fathers and emperors.  The triumph of Diocletian and Maximian was less magnificent, perhaps, than those of Aurelian and Probus, but it was dignified by several circumstances of superior fame and good fortune. Africa and Britain, the Rhine, the Danube, and the Nile, furnished their respective trophies; but the most distinguished ornament was of a more singular nature, a Persian victory followed by an important conquest. The representations of rivers, mountains, and provinces, were carried before the Imperial car. The images of the captive wives, the sisters, and the children of the Great King, afforded a new and grateful spectacle to the vanity of the people.  In the eyes of posterity, this triumph is remarkable, by a distinction of a less honorable kind. It was the last that Rome ever beheld. Soon after this period, the emperors ceased to vanquish, and Rome ceased to be the capital of the empire.
[Footnote 85: Euseb. in Chron. Pagi ad annum. Till the discovery of the treatise De Mortibus Persecutorum, it was not certain that the triumph and the Vicennalia was celebrated at the same time.]
[Footnote 86: At the time of the Vicennalia, Galerius seems to have kept station on the Danube. See Lactant. de M. P. c. 38.]
[Footnote 87: Eutropius (ix. 27) mentions them as a part of the triumph. As the persons had been restored to Narses, nothing more than their images could be exhibited.]
The spot on which Rome was founded had been consecrated by ancient ceremonies and imaginary miracles. The presence of some god, or the memory of some hero, seemed to animate every part of the city, and the empire of the world had been promised to the Capitol.  The native Romans felt and confessed the power of this agreeable illusion. It was derived from their ancestors, had grown up with their earliest habits of life, and was protected, in some measure, by the opinion of political utility. The form and the seat of government were intimately blended together, nor was it esteemed possible to transport the one without destroying the other.  But the sovereignty of the capital was gradually annihilated in the extent of conquest; the provinces rose to the same level, and the vanquished nations acquired the name and privileges, without imbibing the partial affections, of Romans. During a long period, however, the remains of the ancient constitution, and the influence of custom, preserved the dignity of Rome. The emperors, though perhaps of African or Illyrian extraction, respected their adopted country, as the seat of their power, and the centre of their extensive dominions. The emergencies of war very frequently required their presence on the frontiers; but Diocletian and Maximian were the first Roman princes who fixed, in time of peace, their ordinary residence in the provinces; and their conduct, however it might be suggested by private motives, was justified by very specious considerations of policy. The court of the emperor of the West was, for the most part, established at Milan, whose situation, at the foot of the Alps, appeared far more convenient than that of Rome, for the important purpose of watching the motions of the barbarians of Germany. Milan soon assumed the splendor of an Imperial city. The houses are described as numerous and well built; the manners of the people as polished and liberal. A circus, a theatre, a mint, a palace, baths, which bore the name of their founder Maximian; porticos adorned with statues, and a double circumference of walls, contributed to the beauty of the new capital; nor did it seem oppressed even by the proximity of Rome.  To rival the majesty of Rome was the ambition likewise of Diocletian, who employed his leisure, and the wealth of the East, in the embellishment of Nicomedia, a city placed on the verge of Europe and Asia, almost at an equal distance between the Danube and the Euphrates. By the taste of the monarch, and at the expense of the people, Nicomedia acquired, in the space of a few years, a degree of magnificence which might appear to have required the labor of ages, and became inferior only to Rome, Alexandria, and Antioch, in extent of populousness.  The life of Diocletian and Maximian was a life of action, and a considerable portion of it was spent in camps, or in the long and frequent marches; but whenever the public business allowed them any relaxation, they seemed to have retired with pleasure to their favorite residences of Nicomedia and Milan. Till Diocletian, in the twentieth year of his reign, celebrated his Roman triumph, it is extremely doubtful whether he ever visited the ancient capital of the empire. Even on that memorable occasion his stay did not exceed two months. Disgusted with the licentious familiarity of the people, he quitted Rome with precipitation thirteen days before it was expected that he should have appeared in the senate, invested with the ensigns of the consular dignity. 
[Footnote 88: Livy gives us a speech of Camillus on that subject, (v. 51—55,) full of eloquence and sensibility, in opposition to a design of removing the seat of government from Rome to the neighboring city of Veii.]
[Footnote 89: Julius Caesar was reproached with the intention of removing the empire to Ilium or Alexandria. See Sueton. in Caesar. c. 79. According to the ingenious conjecture of Le Fevre and Dacier, the ode of the third book of Horace was intended to divert from the execution of a similar design.]
[Footnote 90: See Aurelius Victor, who likewise mentions the buildings erected by Maximian at Carthage, probably during the Moorish war. We shall insert some verses of Ausonius de Clar. Urb. v.—— Et Mediolani miraeomnia: copia rerum; Innumerae cultaeque domus; facunda virorum Ingenia, et mores laeti: tum duplice muro Amplificata loci species; populique voluptas Circus; et inclusi moles cuneata Theatri; Templa, Palatinaeque arces, opulensque Moneta, Et regio Herculei celebris sub honore lavacri. Cunctaque marmoreis ornata Peristyla signis; Moeniaque in valli formam circumdata labro, Omnia quae magnis operum velut aemula formis Excellunt: nec juncta premit vicinia Romae.]
[Footnote 91: Lactant. de M. P. c. 17. Libanius, Orat. viii. p. 203.]
[Footnote 92: Lactant. de M. P. c. 17. On a similar occasion, Ammianus mentions the dicacitas plebis, as not very agreeable to an Imperial ear. (See l. xvi. c. 10.)]
The dislike expressed by Diocletian towards Rome and Roman freedom, was not the effect of momentary caprice, but the result of the most artful policy. That crafty prince had framed a new system of Imperial government, which was afterwards completed by the family of Constantine; and as the image of the old constitution was religiously preserved in the senate, he resolved to deprive that order of its small remains of power and consideration. We may recollect, about eight years before the elevation, of Diocletian the transient greatness, and the ambitious hopes, of the Roman senate. As long as that enthusiasm prevailed, many of the nobles imprudently displayed their zeal in the cause of freedom; and after the successes of Probus had withdrawn their countenance from the republican party, the senators were unable to disguise their impotent resentment. As the sovereign of Italy, Maximian was intrusted with the care of extinguishing this troublesome, rather than dangerous spirit, and the task was perfectly suited to his cruel temper. The most illustrious members of the senate, whom Diocletian always affected to esteem, were involved, by his colleague, in the accusation of imaginary plots; and the possession of an elegant villa, or a well-cultivated estate, was interpreted as a convincing evidence of guilt.  The camp of the Praetorians, which had so long oppressed, began to protect, the majesty of Rome; and as those haughty troops were conscious of the decline of their power, they were naturally disposed to unite their strength with the authority of the senate. By the prudent measures of Diocletian, the numbers of the Praetorians were insensibly reduced, their privileges abolished,  and their place supplied by two faithful legions of Illyricum, who, under the new titles of Jovians and Herculians, were appointed to perform the service of the Imperial guards.  But the most fatal though secret wound, which the senate received from the hands of Diocletian and Maximian, was inflicted by the inevitable operation of their absence. As long as the emperors resided at Rome, that assembly might be oppressed, but it could scarcely be neglected. The successors of Augustus exercised the power of dictating whatever laws their wisdom or caprice might suggest; but those laws were ratified by the sanction of the senate. The model of ancient freedom was preserved in its deliberations and decrees; and wise princes, who respected the prejudices of the Roman people, were in some measure obliged to assume the language and behavior suitable to the general and first magistrate of the republic. In the armies and in the provinces, they displayed the dignity of monarchs; and when they fixed their residence at a distance from the capital, they forever laid aside the dissimulation which Augustus had recommended to his successors. In the exercise of the legislative as well as the executive power, the sovereign advised with his ministers, instead of consulting the great council of the nation. The name of the senate was mentioned with honor till the last period of the empire; the vanity of its members was still flattered with honorary distinctions;  but the assembly which had so long been the source, and so long the instrument of power, was respectfully suffered to sink into oblivion. The senate of Rome, losing all connection with the Imperial court and the actual constitution, was left a venerable but useless monument of antiquity on the Capitoline hill.
[Footnote 93: Lactantius accuses Maximian of destroying fictis criminationibus lumina senatus, (De M. P. c. 8.) Aurelius Victor speaks very doubtfully of the faith of Diocletian towards his friends.]
[Footnote 94: Truncatae vires urbis, imminuto praetoriarum cohortium atque in armis vulgi numero. Aurelius Victor. Lactantius attributes to Galerius the prosecution of the same plan, (c. 26.)]
[Footnote 95: They were old corps stationed in Illyricum; and according to the ancient establishment, they each consisted of six thousand men. They had acquired much reputation by the use of the plumbatoe, or darts loaded with lead. Each soldier carried five of these, which he darted from a considerable distance, with great strength and dexterity. See Vegetius, i. 17.]
[Footnote 96: See the Theodosian Code, l. vi. tit. ii. with Godefroy's commentary.]
Chapter XIII: Reign Of Diocletian And This Three Associates.—Part IV.
When the Roman princes had lost sight of the senate and of their ancient capital, they easily forgot the origin and nature of their legal power. The civil offices of consul, of proconsul, of censor, and of tribune, by the union of which it had been formed, betrayed to the people its republican extraction. Those modest titles were laid aside;  and if they still distinguished their high station by the appellation of Emperor, or Imperator, that word was understood in a new and more dignified sense, and no longer denoted the general of the Roman armies, but the sovereign of the Roman world. The name of Emperor, which was at first of a military nature, was associated with another of a more servile kind. The epithet of Dominus, or Lord, in its primitive signification, was expressive, not of the authority of a prince over his subjects, or of a commander over his soldiers, but of the despotic power of a master over his domestic slaves.  Viewing it in that odious light, it had been rejected with abhorrence by the first Caesars. Their resistance insensibly became more feeble, and the name less odious; till at length the style of our Lord and Emperor was not only bestowed by flattery, but was regularly admitted into the laws and public monuments. Such lofty epithets were sufficient to elate and satisfy the most excessive vanity; and if the successors of Diocletian still declined the title of King, it seems to have been the effect not so much of their moderation as of their delicacy. Wherever the Latin tongue was in use, (and it was the language of government throughout the empire,) the Imperial title, as it was peculiar to themselves, conveyed a more respectable idea than the name of king, which they must have shared with a hundred barbarian chieftains; or which, at the best, they could derive only from Romulus, or from Tarquin. But the sentiments of the East were very different from those of the West. From the earliest period of history, the sovereigns of Asia had been celebrated in the Greek language by the title of Basileus, or King; and since it was considered as the first distinction among men, it was soon employed by the servile provincials of the East, in their humble addresses to the Roman throne.  Even the attributes, or at least the titles, of the Divinity, were usurped by Diocletian and Maximian, who transmitted them to a succession of Christian emperors.  Such extravagant compliments, however, soon lose their impiety by losing their meaning; and when the ear is once accustomed to the sound, they are heard with indifference, as vague though excessive professions of respect.
[Footnote 97: See the 12th dissertation in Spanheim's excellent work de Usu Numismatum. From medals, inscriptions, and historians, he examines every title separately, and traces it from Augustus to the moment of its disappearing.]
[Footnote 98: Pliny (in Panegyr. c. 3, 55, &c.) speaks of Dominus with execration, as synonymous to Tyrant, and opposite to Prince. And the same Pliny regularly gives that title (in the tenth book of the epistles) to his friend rather than master, the virtuous Trajan. This strange contradiction puzzles the commentators, who think, and the translators, who can write.]
[Footnote 99: Synesius de Regno, edit. Petav. p. 15. I am indebted for this quotation to the Abbe de la Bleterie.]
[Footnote 100: Soe Vandale de Consecratione, p. 354, &c. It was customary for the emperors to mention (in the preamble of laws) their numen, sacreo majesty, divine oracles, &c. According to Tillemont, Gregory Nazianzen complains most bitterly of the profanation, especially when it was practised by an Arian emperor. * Note: In the time of the republic, says Hegewisch, when the consuls, the praetors, and the other magistrates appeared in public, to perform the functions of their office, their dignity was announced both by the symbols which use had consecrated, and the brilliant cortege by which they were accompanied. But this dignity belonged to the office, not to the individual; this pomp belonged to the magistrate, not to the man. * * The consul, followed, in the comitia, by all the senate, the praetors, the quaestors, the aediles, the lictors, the apparitors, and the heralds, on reentering his house, was served only by freedmen and by his slaves. The first emperors went no further. Tiberius had, for his personal attendance, only a moderate number of slaves, and a few freedmen. (Tacit. Ann. iv. 7.) But in proportion as the republican forms disappeared, one after another, the inclination of the emperors to environ themselves with personal pomp, displayed itself more and more. ** The magnificence and the ceremonial of the East were entirely introduced by Diocletian, and were consecrated by Constantine to the Imperial use. Thenceforth the palace, the court, the table, all the personal attendance, distinguished the emperor from his subjects, still more than his superior dignity. The organization which Diocletian gave to his new court, attached less honor and distinction to rank than to services performed towards the members of the Imperial family. Hegewisch, Essai, Hist. sur les Finances Romains. Few historians have characterized, in a more philosophic manner, the influence of a new institution.—G.——It is singular that the son of a slave reduced the haughty aristocracy of Home to the offices of servitude.—M.]
From the time of Augustus to that of Diocletian, the Roman princes, conversing in a familiar manner among their fellow-citizens, were saluted only with the same respect that was usually paid to senators and magistrates. Their principal distinction was the Imperial or military robe of purple; whilst the senatorial garment was marked by a broad, and the equestrian by a narrow, band or stripe of the same honorable color. The pride, or rather the policy, of Diocletian, engaged that artful prince to introduce the stately magnificence of the court of Persia.  He ventured to assume the diadem, an ornament detested by the Romans as the odious ensign of royalty, and the use of which had been considered as the most desperate act of the madness of Caligula. It was no more than a broad white fillet set with pearls, which encircled the emperor's head. The sumptuous robes of Diocletian and his successors were of silk and gold; and it is remarked with indignation, that even their shoes were studded with the most precious gems. The access to their sacred person was every day rendered more difficult by the institution of new forms and ceremonies. The avenues of the palace were strictly guarded by the various schools, as they began to be called, of domestic officers. The interior apartments were intrusted to the jealous vigilance of the eunuchs, the increase of whose numbers and influence was the most infallible symptom of the progress of despotism. When a subject was at length admitted to the Imperial presence, he was obliged, whatever might be his rank, to fall prostrate on the ground, and to adore, according to the eastern fashion, the divinity of his lord and master.  Diocletian was a man of sense, who, in the course of private as well as public life, had formed a just estimate both of himself and of mankind: nor is it easy to conceive, that in substituting the manners of Persia to those of Rome, he was seriously actuated by so mean a principle as that of vanity. He flattered himself, that an ostentation of splendor and luxury would subdue the imagination of the multitude; that the monarch would be less exposed to the rude license of the people and the soldiers, as his person was secluded from the public view; and that habits of submission would insensibly be productive of sentiments of veneration. Like the modesty affected by Augustus, the state maintained by Diocletian was a theatrical representation; but it must be confessed, that of the two comedies, the former was of a much more liberal and manly character than the latter. It was the aim of the one to disguise, and the object of the other to display, the unbounded power which the emperors possessed over the Roman world.
[Footnote 101: See Spanheim de Usu Numismat. Dissert. xii.]
[Footnote 102: Aurelius Victor. Eutropius, ix. 26. It appears by the Panegyrists, that the Romans were soon reconciled to the name and ceremony of adoration.]
Ostentation was the first principle of the new system instituted by Diocletian. The second was division. He divided the empire, the provinces, and every branch of the civil as well as military administration. He multiplied the wheels of the machine of government, and rendered its operations less rapid, but more secure. Whatever advantages and whatever defects might attend these innovations, they must be ascribed in a very great degree to the first inventor; but as the new frame of policy was gradually improved and completed by succeeding princes, it will be more satisfactory to delay the consideration of it till the season of its full maturity and perfection.  Reserving, therefore, for the reign of Constantine a more exact picture of the new empire, we shall content ourselves with describing the principal and decisive outline, as it was traced by the hand of Diocletian. He had associated three colleagues in the exercise of the supreme power; and as he was convinced that the abilities of a single man were inadequate to the public defence, he considered the joint administration of four princes not as a temporary expedient, but as a fundamental law of the constitution. It was his intention, that the two elder princes should be distinguished by the use of the diadem, and the title of Augusti; that, as affection or esteem might direct their choice, they should regularly call to their assistance two subordinate colleagues; and that the Coesars, rising in their turn to the first rank, should supply an uninterrupted succession of emperors. The empire was divided into four parts. The East and Italy were the most honorable, the Danube and the Rhine the most laborious stations. The former claimed the presence of the Augusti, the latter were intrusted to the administration of the Coesars. The strength of the legions was in the hands of the four partners of sovereignty, and the despair of successively vanquishing four formidable rivals might intimidate the ambition of an aspiring general. In their civil government, the emperors were supposed to exercise the undivided power of the monarch, and their edicts, inscribed with their joint names, were received in all the provinces, as promulgated by their mutual councils and authority. Notwithstanding these precautions, the political union of the Roman world was gradually dissolved, and a principle of division was introduced, which, in the course of a few years, occasioned the perpetual separation of the Eastern and Western Empires.
[Footnote 103: The innovations introduced by Diocletian are chiefly deduced, 1st, from some very strong passages in Lactantius; and, 2dly, from the new and various offices which, in the Theodosian code, appear already established in the beginning of the reign of Constantine.]
The system of Diocletian was accompanied with another very material disadvantage, which cannot even at present be totally overlooked; a more expensive establishment, and consequently an increase of taxes, and the oppression of the people. Instead of a modest family of slaves and freedmen, such as had contented the simple greatness of Augustus and Trajan, three or four magnificent courts were established in the various parts of the empire, and as many Roman kings contended with each other and with the Persian monarch for the vain superiority of pomp and luxury. The number of ministers, of magistrates, of officers, and of servants, who filled the different departments of the state, was multiplied beyond the example of former times; and (if we may borrow the warm expression of a contemporary) "when the proportion of those who received, exceeded the proportion of those who contributed, the provinces were oppressed by the weight of tributes."  From this period to the extinction of the empire, it would be easy to deduce an uninterrupted series of clamors and complaints. According to his religion and situation, each writer chooses either Diocletian, or Constantine, or Valens, or Theodosius, for the object of his invectives; but they unanimously agree in representing the burden of the public impositions, and particularly the land tax and capitation, as the intolerable and increasing grievance of their own times. From such a concurrence, an impartial historian, who is obliged to extract truth from satire, as well as from panegyric, will be inclined to divide the blame among the princes whom they accuse, and to ascribe their exactions much less to their personal vices, than to the uniform system of their administration.  The emperor Diocletian was indeed the author of that system; but during his reign, the growing evil was confined within the bounds of modesty and discretion, and he deserves the reproach of establishing pernicious precedents, rather than of exercising actual oppression.  It may be added, that his revenues were managed with prudent economy; and that after all the current expenses were discharged, there still remained in the Imperial treasury an ample provision either for judicious liberality or for any emergency of the state.
[Footnote 104: Lactant. de M. P. c. 7.]
[Footnote 1041: The most curious document which has come to light since the publication of Gibbon's History, is the edict of Diocletian, published from an inscription found at Eskihissar, (Stratoniccia,) by Col. Leake. This inscription was first copied by Sherard, afterwards much more completely by Mr. Bankes. It is confirmed and illustrated by a more imperfect copy of the same edict, found in the Levant by a gentleman of Aix, and brought to this country by M. Vescovali. This edict was issued in the name of the four Caesars, Diocletian, Maximian, Constantius, and Galerius. It fixed a maximum of prices throughout the empire, for all the necessaries and commodities of life. The preamble insists, with great vehemence on the extortion and inhumanity of the venders and merchants. Quis enim adeo obtunisi (obtusi) pectores (is) et a sensu inhumanitatis extorris est qui ignorare potest immo non senserit in venalibus rebus quaevel in mercimoniis aguntur vel diurna urbium conversatione tractantur, in tantum se licen liam defusisse, ut effraenata libido rapien—rum copia nec annorum ubertatibus mitigaretur. The edict, as Col. Leake clearly shows, was issued A. C. 303. Among the articles of which the maximum value is assessed, are oil, salt, honey, butchers' meat, poultry, game, fish, vegetables, fruit the wages of laborers and artisans, schoolmasters and skins, boots and shoes, harness, timber, corn, wine, and beer, (zythus.) The depreciation in the value of money, or the rise in the price of commodities, had been so great during the past century, that butchers' meat, which, in the second century of the empire, was in Rome about two denaril the pound, was now fixed at a maximum of eight. Col. Leake supposes the average price could not be less than four: at the same time the maximum of the wages of the agricultural laborers was twenty-five. The whole edict is, perhaps, the most gigantic effort of a blind though well-intentioned despotism, to control that which is, and ought to be, beyond the regulation of the government. See an Edict of Diocletian, by Col. Leake, London, 1826. Col. Leake has not observed that this Edict is expressly named in the treatise de Mort. Persecut. ch. vii. Idem cum variis iniquitatibus immensam faceret caritatem, legem pretiis rerum venalium statuere conatus.—M]
[Footnote 105: Indicta lex nova quae sane illorum temporum modestia tolerabilis, in perniciem processit. Aurel. Victor., who has treated the character of Diocletian with good sense, though in bad Latin.]
It was in the twenty first year of his reign that Diocletian executed his memorable resolution of abdicating the empire; an action more naturally to have been expected from the elder or the younger Antoninus, than from a prince who had never practised the lessons of philosophy either in the attainment or in the use of supreme power. Diocletian acquired the glory of giving to the world the first example of a resignation,  which has not been very frequently imitated by succeeding monarchs. The parallel of Charles the Fifth, however, will naturally offer itself to our mind, not only since the eloquence of a modern historian has rendered that name so familiar to an English reader, but from the very striking resemblance between the characters of the two emperors, whose political abilities were superior to their military genius, and whose specious virtues were much less the effect of nature than of art. The abdication of Charles appears to have been hastened by the vicissitude of fortune; and the disappointment of his favorite schemes urged him to relinquish a power which he found inadequate to his ambition. But the reign of Diocletian had flowed with a tide of uninterrupted success; nor was it till after he had vanquished all his enemies, and accomplished all his designs, that he seems to have entertained any serious thoughts of resigning the empire. Neither Charles nor Diocletian were arrived at a very advanced period of life; since the one was only fifty-five, and the other was no more than fifty-nine years of age; but the active life of those princes, their wars and journeys, the cares of royalty, and their application to business, had already impaired their constitution, and brought on the infirmities of a premature old age. 
[Footnote 106: Solus omnium post conditum Romanum Imperium, qui extanto fastigio sponte ad privatae vitae statum civilitatemque remearet, Eutrop. ix. 28.]
[Footnote 107: The particulars of the journey and illness are taken from Laclantius, c. 17, who may sometimes be admitted as an evidence of public facts, though very seldom of private anecdotes.]
Notwithstanding the severity of a very cold and rainy winter, Diocletian left Italy soon after the ceremony of his triumph, and began his progress towards the East round the circuit of the Illyrian provinces. From the inclemency of the weather, and the fatigue of the journey, he soon contracted a slow illness; and though he made easy marches, and was generally carried in a close litter, his disorder, before he arrived at Nicomedia, about the end of the summer, was become very serious and alarming. During the whole winter he was confined to his palace: his danger inspired a general and unaffected concern; but the people could only judge of the various alterations of his health, from the joy or consternation which they discovered in the countenances and behavior of his attendants. The rumor of his death was for some time universally believed, and it was supposed to be concealed with a view to prevent the troubles that might have happened during the absence of the Caesar Galerius. At length, however, on the first of March, Diocletian once more appeared in public, but so pale and emaciated, that he could scarcely have been recognized by those to whom his person was the most familiar. It was time to put an end to the painful struggle, which he had sustained during more than a year, between the care of his health and that of his dignity. The former required indulgence and relaxation, the latter compelled him to direct, from the bed of sickness, the administration of a great empire. He resolved to pass the remainder of his days in honorable repose, to place his glory beyond the reach of fortune, and to relinquish the theatre of the world to his younger and more active associates. 
[Footnote 108: Aurelius Victor ascribes the abdication, which had been so variously accounted for, to two causes: 1st, Diocletian's contempt of ambition; and 2dly, His apprehension of impending troubles. One of the panegyrists (vi. 9) mentions the age and infirmities of Diocletian as a very natural reason for his retirement. * Note: Constantine (Orat. ad Sanct. c. 401) more than insinuated that derangement of mind, connected with the conflagration of the palace at Nicomedia by lightning, was the cause of his abdication. But Heinichen. in a very sensible note on this passage in Eusebius, while he admits that his long illness might produce a temporary depression of spirits, triumphantly appeals to the philosophical conduct of Diocletian in his retreat, and the influence which he still retained on public affairs.—M.]
The ceremony of his abdication was performed in a spacious plain, about three miles from Nicomedia. The emperor ascended a lofty throne, and in a speech, full of reason and dignity, declared his intention, both to the people and to the soldiers who were assembled on this extraordinary occasion. As soon as he had divested himself of his purple, he withdrew from the gazing multitude; and traversing the city in a covered chariot, proceeded, without delay, to the favorite retirement which he had chosen in his native country of Dalmatia. On the same day, which was the first of May,  Maximian, as it had been previously concerted, made his resignation of the Imperial dignity at Milan.
Even in the splendor of the Roman triumph, Diocletian had meditated his design of abdicating the government. As he wished to secure the obedience of Maximian, he exacted from him either a general assurance that he would submit his actions to the authority of his benefactor, or a particular promise that he would descend from the throne, whenever he should receive the advice and the example. This engagement, though it was confirmed by the solemnity of an oath before the altar of the Capitoline Jupiter,  would have proved a feeble restraint on the fierce temper of Maximian, whose passion was the love of power, and who neither desired present tranquility nor future reputation. But he yielded, however reluctantly, to the ascendant which his wiser colleague had acquired over him, and retired, immediately after his abdication, to a villa in Lucania, where it was almost impossible that such an impatient spirit could find any lasting tranquility.
[Footnote 109: The difficulties as well as mistakes attending the dates both of the year and of the day of Diocletian's abdication are perfectly cleared up by Tillemont, Hist. des Empereurs, tom. iv. p 525, note 19, and by Pagi ad annum.]
[Footnote 110: See Panegyr. Veter. vi. 9. The oration was pronounced after Maximian had resumed the purple.]
Diocletian, who, from a servile origin, had raised himself to the throne, passed the nine last years of his life in a private condition. Reason had dictated, and content seems to have accompanied, his retreat, in which he enjoyed, for a long time, the respect of those princes to whom he had resigned the possession of the world.  It is seldom that minds long exercised in business have formed the habits of conversing with themselves, and in the loss of power they principally regret the want of occupation. The amusements of letters and of devotion, which afford so many resources in solitude, were incapable of fixing the attention of Diocletian; but he had preserved, or at least he soon recovered, a taste for the most innocent as well as natural pleasures, and his leisure hours were sufficiently employed in building, planting, and gardening. His answer to Maximian is deservedly celebrated. He was solicited by that restless old man to reassume the reins of government, and the Imperial purple. He rejected the temptation with a smile of pity, calmly observing, that if he could show Maximian the cabbages which he had planted with his own hands at Salona, he should no longer be urged to relinquish the enjoyment of happiness for the pursuit of power.  In his conversations with his friends, he frequently acknowledged, that of all arts, the most difficult was the art of reigning; and he expressed himself on that favorite topic with a degree of warmth which could be the result only of experience. "How often," was he accustomed to say, "is it the interest of four or five ministers to combine together to deceive their sovereign! Secluded from mankind by his exalted dignity, the truth is concealed from his knowledge; he can see only with their eyes, he hears nothing but their misrepresentations. He confers the most important offices upon vice and weakness, and disgraces the most virtuous and deserving among his subjects. By such infamous arts," added Diocletian, "the best and wisest princes are sold to the venal corruption of their courtiers."  A just estimate of greatness, and the assurance of immortal fame, improve our relish for the pleasures of retirement; but the Roman emperor had filled too important a character in the world, to enjoy without alloy the comforts and security of a private condition. It was impossible that he could remain ignorant of the troubles which afflicted the empire after his abdication. It was impossible that he could be indifferent to their consequences. Fear, sorrow, and discontent, sometimes pursued him into the solitude of Salona. His tenderness, or at least his pride, was deeply wounded by the misfortunes of his wife and daughter; and the last moments of Diocletian were imbittered by some affronts, which Licinius and Constantine might have spared the father of so many emperors, and the first author of their own fortune. A report, though of a very doubtful nature, has reached our times, that he prudently withdrew himself from their power by a voluntary death. 
[Footnote 111: Eumenius pays him a very fine compliment: "At enim divinum illum virum, qui primus imperium et participavit et posuit, consilii et fact isui non poenitet; nec amisisse se putat quod sponte transcripsit. Felix beatusque vere quem vestra, tantorum principum, colunt privatum." Panegyr. Vet. vii. 15.]
[Footnote 112: We are obliged to the younger Victor for this celebrated item. Eutropius mentions the thing in a more general manner.]
[Footnote 113: Hist. August. p. 223, 224. Vopiscus had learned this conversation from his father.]
[Footnote 114: The younger Victor slightly mentions the report. But as Diocletian had disobliged a powerful and successful party, his memory has been loaded with every crime and misfortune. It has been affirmed that he died raving mad, that he was condemned as a criminal by the Roman senate, &c.]
Before we dismiss the consideration of the life and character of Diocletian, we may, for a moment, direct our view to the place of his retirement. Salona, a principal city of his native province of Dalmatia, was near two hundred Roman miles (according to the measurement of the public highways) from Aquileia and the confines of Italy, and about two hundred and seventy from Sirmium, the usual residence of the emperors whenever they visited the Illyrian frontier.  A miserable village still preserves the name of Salona; but so late as the sixteenth century, the remains of a theatre, and a confused prospect of broken arches and marble columns, continued to attest its ancient splendor.  About six or seven miles from the city, Diocletian constructed a magnificent palace, and we may infer, from the greatness of the work, how long he had meditated his design of abdicating the empire. The choice of a spot which united all that could contribute either to health or to luxury, did not require the partiality of a native. "The soil was dry and fertile, the air is pure and wholesome, and though extremely hot during the summer months, this country seldom feels those sultry and noxious winds, to which the coasts of Istria and some parts of Italy are exposed. The views from the palace are no less beautiful than the soil and climate were inviting. Towards the west lies the fertile shore that stretches along the Adriatic, in which a number of small islands are scattered in such a manner, as to give this part of the sea the appearance of a great lake. On the north side lies the bay, which led to the ancient city of Salona; and the country beyond it, appearing in sight, forms a proper contrast to that more extensive prospect of water, which the Adriatic presents both to the south and to the east. Towards the north, the view is terminated by high and irregular mountains, situated at a proper distance, and in many places covered with villages, woods, and vineyards." 
[Footnote 115: See the Itiner. p. 269, 272, edit. Wessel.]
[Footnote 116: The Abate Fortis, in his Viaggio in Dalmazia, p. 43, (printed at Venice in the year 1774, in two small volumes in quarto,) quotes a Ms account of the antiquities of Salona, composed by Giambattista Giustiniani about the middle of the xvith century.]
[Footnote 117: Adam's Antiquities of Diocletian's Palace at Spalatro, p. 6. We may add a circumstance or two from the Abate Fortis: the little stream of the Hyader, mentioned by Lucan, produces most exquisite trout, which a sagacious writer, perhaps a monk, supposes to have been one of the principal reasons that determined Diocletian in the choice of his retirement. Fortis, p. 45. The same author (p. 38) observes, that a taste for agriculture is reviving at Spalatro; and that an experimental farm has lately been established near the city, by a society of gentlemen.]
Though Constantine, from a very obvious prejudice, affects to mention the palace of Diocletian with contempt,  yet one of their successors, who could only see it in a neglected and mutilated state, celebrates its magnificence in terms of the highest admiration.  It covered an extent of ground consisting of between nine and ten English acres. The form was quadrangular, flanked with sixteen towers. Two of the sides were near six hundred, and the other two near seven hundred feet in length. The whole was constructed of a beautiful freestone, extracted from the neighboring quarries of Trau, or Tragutium, and very little inferior to marble itself. Four streets, intersecting each other at right angles, divided the several parts of this great edifice, and the approach to the principal apartment was from a very stately entrance, which is still denominated the Golden Gate. The approach was terminated by a peristylium of granite columns, on one side of which we discover the square temple of Aesculapius, on the other the octagon temple of Jupiter. The latter of those deities Diocletian revered as the patron of his fortunes, the former as the protector of his health. By comparing the present remains with the precepts of Vitruvius, the several parts of the building, the baths, bed-chamber, the atrium, the basilica, and the Cyzicene, Corinthian, and Egyptian halls have been described with some degree of precision, or at least of probability. Their forms were various, their proportions just; but they all were attended with two imperfections, very repugnant to our modern notions of taste and conveniency. These stately rooms had neither windows nor chimneys. They were lighted from the top, (for the building seems to have consisted of no more than one story,) and they received their heat by the help of pipes that were conveyed along the walls. The range of principal apartments was protected towards the south-west by a portico five hundred and seventeen feet long, which must have formed a very noble and delightful walk, when the beauties of painting and sculpture were added to those of the prospect.
[Footnote 118: Constantin. Orat. ad Coetum Sanct. c. 25. In this sermon, the emperor, or the bishop who composed it for him, affects to relate the miserable end of all the persecutors of the church.]
[Footnote 119: Constantin. Porphyr. de Statu Imper. p. 86.]
Had this magnificent edifice remained in a solitary country, it would have been exposed to the ravages of time; but it might, perhaps, have escaped the rapacious industry of man. The village of Aspalathus,  and, long afterwards, the provincial town of Spalatro, have grown out of its ruins. The Golden Gate now opens into the market-place. St. John the Baptist has usurped the honors of Aesculapius; and the temple of Jupiter, under the protection of the Virgin, is converted into the cathedral church.
For this account of Diocletian's palace we are principally indebted to an ingenious artist of our own time and country, whom a very liberal curiosity carried into the heart of Dalmatia.  But there is room to suspect that the elegance of his designs and engraving has somewhat flattered the objects which it was their purpose to represent. We are informed by a more recent and very judicious traveller, that the awful ruins of Spalatro are not less expressive of the decline of the art than of the greatness of the Roman empire in the time of Diocletian.  If such was indeed the state of architecture, we must naturally believe that painting and sculpture had experienced a still more sensible decay. The practice of architecture is directed by a few general and even mechanical rules. But sculpture, and above all, painting, propose to themselves the imitation not only of the forms of nature, but of the characters and passions of the human soul. In those sublime arts, the dexterity of the hand is of little avail, unless it is animated by fancy, and guided by the most correct taste and observation.
[Footnote 120: D'Anville, Geographie Ancienne, tom. i. p. 162.]
[Footnote 121: Messieurs Adam and Clerisseau, attended by two draughtsmen visited Spalatro in the month of July, 1757. The magnificent work which their journey produced was published in London seven years afterwards.]
[Footnote 122: I shall quote the words of the Abate Fortis. "E'bastevolmente agli amatori dell' Architettura, e dell' Antichita, l'opera del Signor Adams, che a donato molto a que' superbi vestigi coll'abituale eleganza del suo toccalapis e del bulino. In generale la rozzezza del scalpello, e'l cattivo gusto del secolo vi gareggiano colla magnificenz del fabricato." See Viaggio in Dalmazia, p. 40.]
It is almost unnecessary to remark, that the civil distractions of the empire, the license of the soldiers, the inroads of the barbarians, and the progress of despotism, had proved very unfavorable to genius, and even to learning. The succession of Illyrian princes restored the empire without restoring the sciences. Their military education was not calculated to inspire them with the love of letters; and even the mind of Diocletian, however active and capacious in business, was totally uninformed by study or speculation. The professions of law and physic are of such common use and certain profit, that they will always secure a sufficient number of practitioners, endowed with a reasonable degree of abilities and knowledge; but it does not appear that the students in those two faculties appeal to any celebrated masters who have flourished within that period. The voice of poetry was silent. History was reduced to dry and confused abridgments, alike destitute of amusement and instruction. A languid and affected eloquence was still retained in the pay and service of the emperors, who encouraged not any arts except those which contributed to the gratification of their pride, or the defence of their power. 
[Footnote 123: The orator Eumenius was secretary to the emperors Maximian and Constantius, and Professor of Rhetoric in the college of Autun. His salary was six hundred thousand sesterces, which, according to the lowest computation of that age, must have exceeded three thousand pounds a year. He generously requested the permission of employing it in rebuilding the college. See his Oration De Restaurandis Scholis; which, though not exempt from vanity, may atone for his panegyrics.]
The declining age of learning and of mankind is marked, however, by the rise and rapid progress of the new Platonists. The school of Alexandria silenced those of Athens; and the ancient sects enrolled themselves under the banners of the more fashionable teachers, who recommended their system by the novelty of their method, and the austerity of their manners. Several of these masters, Ammonius, Plotinus, Amelius, and Porphyry,  were men of profound thought and intense application; but by mistaking the true object of philosophy, their labors contributed much less to improve than to corrupt the human understanding. The knowledge that is suited to our situation and powers, the whole compass of moral, natural, and mathematical science, was neglected by the new Platonists; whilst they exhausted their strength in the verbal disputes of metaphysics, attempted to explore the secrets of the invisible world, and studied to reconcile Aristotle with Plato, on subjects of which both these philosophers were as ignorant as the rest of mankind. Consuming their reason in these deep but unsubstantial meditations, their minds were exposed to illusions of fancy. They flattered themselves that they possessed the secret of disengaging the soul from its corporal prison; claimed a familiar intercourse with demons and spirits; and, by a very singular revolution, converted the study of philosophy into that of magic. The ancient sages had derided the popular superstition; after disguising its extravagance by the thin pretence of allegory, the disciples of Plotinus and Porphyry became its most zealous defenders. As they agreed with the Christians in a few mysterious points of faith, they attacked the remainder of their theological system with all the fury of civil war. The new Platonists would scarcely deserve a place in the history of science, but in that of the church the mention of them will very frequently occur.
[Footnote 124: Porphyry died about the time of Diocletian's abdication. The life of his master Plotinus, which he composed, will give us the most complete idea of the genius of the sect, and the manners of its professors. This very curious piece is inserted in Fabricius Bibliotheca Graeca tom. iv. p. 88—148.]
Chapter XIV: Six Emperors At The Same Time, Reunion Of The Empire.—Part I.
Troubles After The Abdication Of Diocletian.—Death Of Constantius.—Elevation Of Constantine And Maxen Tius.— Six Emperors At The Same Time.—Death Of Maximian And Galerius.—Victories Of Constantine Over Maxentius And Licinus.—Reunion Of The Empire Under The Authority Of Constantine.
The balance of power established by Diocletian subsisted no longer than while it was sustained by the firm and dexterous hand of the founder. It required such a fortunate mixture of different tempers and abilities, as could scarcely be found or even expected a second time; two emperors without jealousy, two Caesars without ambition, and the same general interest invariably pursued by four independent princes. The abdication of Diocletian and Maximian was succeeded by eighteen years of discord and confusion. The empire was afflicted by five civil wars; and the remainder of the time was not so much a state of tranquillity as a suspension of arms between several hostile monarchs, who, viewing each other with an eye of fear and hatred, strove to increase their respective forces at the expense of their subjects.
As soon as Diocletian and Maximian had resigned the purple, their station, according to the rules of the new constitution, was filled by the two Caesars, Constantius and Galerius, who immediately assumed the title of Augustus. 
[Footnote 1: M. de Montesquieu (Considerations sur la Grandeur et La Decadence des Romains, c. 17) supposes, on the authority of Orosius and Eusebius, that, on this occasion, the empire, for the first time, was really divided into two parts. It is difficult, however, to discover in what respect the plan of Galerius differed from that of Diocletian.]
The honors of seniority and precedence were allowed to the former of those princes, and he continued under a new appellation to administer his ancient department of Gaul, Spain, and Britain.
The government of those ample provinces was sufficient to exercise his talents and to satisfy his ambition. Clemency, temperance, and moderation, distinguished the amiable character of Constantius, and his fortunate subjects had frequently occasion to compare the virtues of their sovereign with the passions of Maximian, and even with the arts of Diocletian.  Instead of imitating their eastern pride and magnificence, Constantius preserved the modesty of a Roman prince. He declared, with unaffected sincerity, that his most valued treasure was in the hearts of his people, and that, whenever the dignity of the throne, or the danger of the state, required any extraordinary supply, he could depend with confidence on their gratitude and liberality.  The provincials of Gaul, Spain, and Britain, sensible of his worth, and of their own happiness, reflected with anxiety on the declining health of the emperor Constantius, and the tender age of his numerous family, the issue of his second marriage with the daughter of Maximian.
[Footnote 2: Hic non modo amabilis, sed etiam venerabilis Gallis fuit; praecipuc quod Diocletiani suspectam prudentiam, et Maximiani sanguinariam violentiam imperio ejus evaserant. Eutrop. Breviar. x. i.]
[Footnote 3: Divitiis Provincialium (mel. provinciarum) ac privatorum studens, fisci commoda non admodum affectans; ducensque melius publicas opes a privatis haberi, quam intra unum claustrum reservari. Id. ibid. He carried this maxim so far, that whenever he gave an entertainment, he was obliged to borrow a service of plate.]
The stern temper of Galerius was cast in a very different mould; and while he commanded the esteem of his subjects, he seldom condescended to solicit their affections. His fame in arms, and, above all, the success of the Persian war, had elated his haughty mind, which was naturally impatient of a superior, or even of an equal. If it were possible to rely on the partial testimony of an injudicious writer, we might ascribe the abdication of Diocletian to the menaces of Galerius, and relate the particulars of a private conversation between the two princes, in which the former discovered as much pusillanimity as the latter displayed ingratitude and arrogance.  But these obscure anecdotes are sufficiently refuted by an impartia view of the character and conduct of Diocletian. Whatever might otherwise have been his intentions, if he had apprehended any danger from the violence of Galerius, his good sense would have instructed him to prevent the ignominious contest; and as he had held the sceptre with glory, he would have resigned it without disgrace.
[Footnote 4: Lactantius de Mort. Persecutor. c. 18. Were the particulars of this conference more consistent with truth and decency, we might still ask how they came to the knowledge of an obscure rhetorician. But there are many historians who put us in mind of the admirable saying of the great Conde to Cardinal de Retz: "Ces coquins nous font parlor et agir, comme ils auroient fait eux-memes a notre place." * Note: This attack upon Lactantius is unfounded. Lactantius was so far from having been an obscure rhetorician, that he had taught rhetoric publicly, and with the greatest success, first in Africa, and afterwards in Nicomedia. His reputation obtained him the esteem of Constantine, who invited him to his court, and intrusted to him the education of his son Crispus. The facts which he relates took place during his own time; he cannot be accused of dishonesty or imposture. Satis me vixisse arbitrabor et officium hominis implesse si labor meus aliquos homines, ab erroribus iberatos, ad iter coeleste direxerit. De Opif. Dei, cap. 20. The eloquence of Lactantius has caused him to be called the Christian Cicero. Annon Gent.—G. ——Yet no unprejudiced person can read this coarse and particular private conversation of the two emperors, without assenting to the justice of Gibbon's severe sentence. But the authorship of the treatise is by no means certain. The fame of Lactantius for eloquence as well as for truth, would suffer no loss if it should be adjudged to some more "obscure rhetorician." Manso, in his Leben Constantins des Grossen, concurs on this point with Gibbon Beylage, iv. —M.]
After the elevation of Constantius and Galerius to the rank of Augusti, two new Coesars were required to supply their place, and to complete the system of the Imperial government. Diocletian, was sincerely desirous of withdrawing himself from the world; he considered Galerius, who had married his daughter, as the firmest support of his family and of the empire; and he consented, without reluctance, that his successor should assume the merit as well as the envy of the important nomination. It was fixed without consulting the interest or inclination of the princes of the West. Each of them had a son who was arrived at the age of manhood, and who might have been deemed the most natural candidates for the vacant honor. But the impotent resentment of Maximian was no longer to be dreaded; and the moderate Constantius, though he might despise the dangers, was humanely apprehensive of the calamities, of civil war. The two persons whom Galerius promoted to the rank of Caesar, were much better suited to serve the views of his ambition; and their principal recommendation seems to have consisted in the want of merit or personal consequence. The first of these was Daza, or, as he was afterwards called, Maximin, whose mother was the sister of Galerius. The unexperienced youth still betrayed, by his manners and language, his rustic education, when, to his own astonishment, as well as that of the world, he was invested by Diocletian with the purple, exalted to the dignity of Caesar, and intrusted with the sovereign command of Egypt and Syria.  At the same time, Severus, a faithful servant, addicted to pleasure, but not incapable of business, was sent to Milan, to receive, from the reluctant hands of Maximian, the Caesarian ornaments, and the possession of Italy and Africa. According to the forms of the constitution, Severus acknowledged the supremacy of the western emperor; but he was absolutely devoted to the commands of his benefactor Galerius, who, reserving to himself the intermediate countries from the confines of Italy to those of Syria, firmly established his power over three fourths of the monarchy. In the full confidence that the approaching death of Constantius would leave him sole master of the Roman world, we are assured that he had arranged in his mind a long succession of future princes, and that he meditated his own retreat from public life, after he should have accomplished a glorious reign of about twenty years. 
[Footnote 5: Sublatus nuper a pecoribus et silvis (says Lactantius de M. P. c. 19) statim Scutarius, continuo Protector, mox Tribunus, postridie Caesar, accepit Orientem. Aurelius Victor is too liberal in giving him the whole portion of Diocletian.]
[Footnote 6: His diligence and fidelity are acknowledged even by Lactantius, de M. P. c. 18.]
[Footnote 7: These schemes, however, rest only on the very doubtful authority of Lactantius de M. P. c. 20.]
But within less than eighteen months, two unexpected revolutions overturned the ambitious schemes of Galerius. The hopes of uniting the western provinces to his empire were disappointed by the elevation of Constantine, whilst Italy and Africa were lost by the successful revolt of Maxentius.
I. The fame of Constantine has rendered posterity attentive to the most minute circumstances of his life and actions. The place of his birth, as well as the condition of his mother Helena, have been the subject, not only of literary, but of national disputes. Notwithstanding the recent tradition, which assigns for her father a British king,  we are obliged to confess, that Helena was the daughter of an innkeeper; but at the same time, we may defend the legality of her marriage, against those who have represented her as the concubine of Constantius.  The great Constantine was most probably born at Naissus, in Dacia;  and it is not surprising that, in a family and province distinguished only by the profession of arms, the youth should discover very little inclination to improve his mind by the acquisition of knowledge.  He was about eighteen years of age when his father was promoted to the rank of Caesar; but that fortunate event was attended with his mother's divorce; and the splendor of an Imperial alliance reduced the son of Helena to a state of disgrace and humiliation. Instead of following Constantius in the West, he remained in the service of Diocletian, signalized his valor in the wars of Egypt and Persia, and gradually rose to the honorable station of a tribune of the first order. The figure of Constantine was tall and majestic; he was dexterous in all his exercises, intrepid in war, affable in peace; in his whole conduct, the active spirit of youth was tempered by habitual prudence; and while his mind was engrossed by ambition, he appeared cold and insensible to the allurements of pleasure. The favor of the people and soldiers, who had named him as a worthy candidate for the rank of Caesar, served only to exasperate the jealousy of Galerius; and though prudence might restrain him from exercising any open violence, an absolute monarch is seldom at a loss now to execute a sure and secret revenge.  Every hour increased the danger of Constantine, and the anxiety of his father, who, by repeated letters, expressed the warmest desire of embracing his son. For some time the policy of Galerius supplied him with delays and excuses; but it was impossible long to refuse so natural a request of his associate, without maintaining his refusal by arms. The permission of the journey was reluctantly granted, and whatever precautions the emperor might have taken to intercept a return, the consequences of which he, with so much reason, apprehended, they were effectually disappointed by the incredible diligence of Constantine.  Leaving the palace of Nicomedia in the night, he travelled post through Bithynia, Thrace, Dacia, Pannonia, Italy, and Gaul, and, amidst the joyful acclamations of the people, reached the port of Boulogne in the very moment when his father was preparing to embark for Britain. 
[Footnote 8: This tradition, unknown to the contemporaries of Constantine was invented in the darkness of monestaries, was embellished by Jeffrey of Monmouth, and the writers of the xiith century, has been defended by our antiquarians of the last age, and is seriously related in the ponderous History of England, compiled by Mr. Carte, (vol. i. p. 147.) He transports, however, the kingdom of Coil, the imaginary father of Helena, from Essex to the wall of Antoninus.]
[Footnote 9: Eutropius (x. 2) expresses, in a few words, the real truth, and the occasion of the error "ex obscuriori matrimonio ejus filius." Zosimus (l. ii. p. 78) eagerly seized the most unfavorable report, and is followed by Orosius, (vii. 25,) whose authority is oddly enough overlooked by the indefatigable, but partial Tillemont. By insisting on the divorce of Helena, Diocletian acknowledged her marriage.]
[Footnote 10: There are three opinions with regard to the place of Constantine's birth. 1. Our English antiquarians were used to dwell with rapture on the words of his panegyrist, "Britannias illic oriendo nobiles fecisti." But this celebrated passage may be referred with as much propriety to the accession, as to the nativity of Constantine. 2. Some of the modern Greeks have ascribed the honor of his birth to Drepanum, a town on the Gulf of Nicomedia, (Cellarius, tom. ii. p. 174,) which Constantine dignified with the name of Helenopolis, and Justinian adorned with many splendid buildings, (Procop. de Edificiis, v. 2.) It is indeed probable enough, that Helena's father kept an inn at Drepanum, and that Constantius might lodge there when he returned from a Persian embassy, in the reign of Aurelian. But in the wandering life of a soldier, the place of his marriage, and the places where his children are born, have very little connection with each other. 3. The claim of Naissus is supported by the anonymous writer, published at the end of Ammianus, p. 710, and who in general copied very good materials; and it is confirmed by Julius Firmicus, (de Astrologia, l. i. c. 4,) who flourished under the reign of Constantine himself. Some objections have been raised against the integrity of the text, and the application of the passage of Firmicus but the former is established by the best Mss., and the latter is very ably defended by Lipsius de Magnitudine Romana, l. iv. c. 11, et Supplement.]
[Footnote 11: Literis minus instructus. Anonym. ad Ammian. p. 710.]
[Footnote 12: Galerius, or perhaps his own courage, exposed him to single combat with a Sarmatian, (Anonym. p. 710,) and with a monstrous lion. See Praxagoras apud Photium, p. 63. Praxagoras, an Athenian philosopher, had written a life of Constantine in two books, which are now lost. He was a contemporary.]
[Footnote 13: Zosimus, l. ii. p. 78, 79. Lactantius de M. P. c. 24. The former tells a very foolish story, that Constantine caused all the post-horses which he had used to be hamstrung. Such a bloody execution, without preventing a pursuit, would have scattered suspicions, and might have stopped his journey. * Note: Zosimus is not the only writer who tells this story. The younger Victor confirms it. Ad frustrandos insequentes, publica jumenta, quaqua iter ageret, interficiens. Aurelius Victor de Caesar says the same thing, G. as also the Anonymus Valesii.— M. ——Manso, (Leben Constantins,) p. 18, observes that the story has been exaggerated; he took this precaution during the first stage of his journey.—M.]
[Footnote 14: Anonym. p. 710. Panegyr. Veter. vii. 4. But Zosimus, l. ii. p. 79, Eusebius de Vit. Constant. l. i. c. 21, and Lactantius de M. P. c. 24. suppose, with less accuracy, that he found his father on his death-bed.]
The British expedition, and an easy victory over the barbarians of Caledonia, were the last exploits of the reign of Constantius. He ended his life in the Imperial palace of York, fifteen months after he had received the title of Augustus, and almost fourteen years and a half after he had been promoted to the rank of Caesar. His death was immediately succeeded by the elevation of Constantine. The ideas of inheritance and succession are so very familiar, that the generality of mankind consider them as founded, not only in reason, but in nature itself. Our imagination readily transfers the same principles from private property to public dominion: and whenever a virtuous father leaves behind him a son whose merit seems to justify the esteem, or even the hopes, of the people, the joint influence of prejudice and of affection operates with irresistible weight. The flower of the western armies had followed Constantius into Britain, and the national troops were reenforced by a numerous body of Alemanni, who obeyed the orders of Crocus, one of their hereditary chieftains.  The opinion of their own importance, and the assurance that Britain, Gaul, and Spain would acquiesce in their nomination, were diligently inculcated to the legions by the adherents of Constantine. The soldiers were asked, whether they could hesitate a moment between the honor of placing at their head the worthy son of their beloved emperor, and the ignominy of tamely expecting the arrival of some obscure stranger, on whom it might please the sovereign of Asia to bestow the armies and provinces of the West. It was insinuated to them, that gratitude and liberality held a distinguished place among the virtues of Constantine; nor did that artful prince show himself to the troops, till they were prepared to salute him with the names of Augustus and Emperor. The throne was the object of his desires; and had he been less actuated by ambition, it was his only means of safety. He was well acquainted with the character and sentiments of Galerius, and sufficiently apprised, that if he wished to live he must determine to reign. The decent and even obstinate resistance which he chose to affect,  was contrived to justify his usurpation; nor did he yield to the acclamations of the army, till he had provided the proper materials for a letter, which he immediately despatched to the emperor of the East. Constantine informed him of the melancholy event of his father's death, modestly asserted his natural claim to the succession, and respectfully lamented, that the affectionate violence of his troops had not permitted him to solicit the Imperial purple in the regular and constitutional manner. The first emotions of Galerius were those of surprise, disappointment, and rage; and as he could seldom restrain his passions, he loudly threatened, that he would commit to the flames both the letter and the messenger. But his resentment insensibly subsided; and when he recollected the doubtful chance of war, when he had weighed the character and strength of his adversary, he consented to embrace the honorable accommodation which the prudence of Constantine had left open to him. Without either condemning or ratifying the choice of the British army, Galerius accepted the son of his deceased colleague as the sovereign of the provinces beyond the Alps; but he gave him only the title of Caesar, and the fourth rank among the Roman princes, whilst he conferred the vacant place of Augustus on his favorite Severus. The apparent harmony of the empire was still preserved, and Constantine, who already possessed the substance, expected, without impatience, an opportunity of obtaining the honors, of supreme power. 
[Footnote 15: Cunctis qui aderant, annitentibus, sed praecipue Croco (alii Eroco) [Erich?] Alamannorum Rege, auxilii gratia Constantium comitato, imperium capit. Victor Junior, c. 41. This is perhaps the first instance of a barbarian king, who assisted the Roman arms with an independent body of his own subjects. The practice grew familiar and at last became fatal.]
[Footnote 16: His panegyrist Eumenius (vii. 8) ventures to affirm in the presence of Constantine, that he put spurs to his horse, and tried, but in vain, to escape from the hands of his soldiers.]
[Footnote 17: Lactantius de M. P. c. 25. Eumenius (vii. 8.) gives a rhetorical turn to the whole transaction.]
The children of Constantius by his second marriage were six in number, three of either sex, and whose Imperial descent might have solicited a preference over the meaner extraction of the son of Helena. But Constantine was in the thirty-second year of his age, in the full vigor both of mind and body, at the time when the eldest of his brothers could not possibly be more than thirteen years old. His claim of superior merit had been allowed and ratified by the dying emperor.  In his last moments Constantius bequeathed to his eldest son the care of the safety as well as greatness of the family; conjuring him to assume both the authority and the sentiments of a father with regard to the children of Theodora. Their liberal education, advantageous marriages, the secure dignity of their lives, and the first honors of the state with which they were invested, attest the fraternal affection of Constantine; and as those princes possessed a mild and grateful disposition, they submitted without reluctance to the superiority of his genius and fortune. 
[Footnote 18: The choice of Constantine, by his dying father, which is warranted by reason, and insinuated by Eumenius, seems to be confirmed by the most unexceptionable authority, the concurring evidence of Lactantius (de M. P. c. 24) and of Libanius, (Oratio i.,) of Eusebius (in Vit. Constantin. l. i. c. 18, 21) and of Julian, (Oratio i)]
[Footnote 19: Of the three sisters of Constantine, Constantia married the emperor Licinius, Anastasia the Caesar Bassianus, and Eutropia the consul Nepotianus. The three brothers were, Dalmatius, Julius Constantius, and Annibalianus, of whom we shall have occasion to speak hereafter.]
II. The ambitious spirit of Galerius was scarcely reconciled to the disappointment of his views upon the Gallic provinces, before the unexpected loss of Italy wounded his pride as well as power in a still more sensible part. The long absence of the emperors had filled Rome with discontent and indignation; and the people gradually discovered, that the preference given to Nicomedia and Milan was not to be ascribed to the particular inclination of Diocletian, but to the permanent form of government which he had instituted. It was in vain that, a few months after his abdication, his successors dedicated, under his name, those magnificent baths, whose ruins still supply the ground as well as the materials for so many churches and convents.  The tranquility of those elegant recesses of ease and luxury was disturbed by the impatient murmurs of the Romans, and a report was insensibly circulated, that the sums expended in erecting those buildings would soon be required at their hands. About that time the avarice of Galerius, or perhaps the exigencies of the state, had induced him to make a very strict and rigorous inquisition into the property of his subjects, for the purpose of a general taxation, both on their lands and on their persons. A very minute survey appears to have been taken of their real estates; and wherever there was the slightest suspicion of concealment, torture was very freely employed to obtain a sincere declaration of their personal wealth.  The privileges which had exalted Italy above the rank of the provinces were no longer regarded:  and the officers of the revenue already began to number the Roman people, and to settle the proportion of the new taxes. Even when the spirit of freedom had been utterly extinguished, the tamest subjects have sometimes ventured to resist an unprecedented invasion of their property; but on this occasion the injury was aggravated by the insult, and the sense of private interest was quickened by that of national honor. The conquest of Macedonia, as we have already observed, had delivered the Roman people from the weight of personal taxes.