When the emperor Carus undertook the Persian war, he was induced, by motives of affection as well as policy, to secure the fortunes of his family, by leaving in the hands of his eldest son the armies and provinces of the West. The intelligence which he soon received of the conduct of Carinus filled him with shame and regret; nor had he concealed his resolution of satisfying the republic by a severe act of justice, and of adopting, in the place of an unworthy son, the brave and virtuous Constantius, who at that time was governor of Dalmatia. But the elevation of Constantius was for a while deferred; and as soon as the father's death had released Carinus from the control of fear or decency, he displayed to the Romans the extravagancies of Elagabalus, aggravated by the cruelty of Domitian. 
[Footnote 82: Vopiscus in Hist. August. p. 253, 254. Eutropius, x. 19. Vic to Junior. The reign of Diocletian indeed was so long and prosperous, that it must have been very unfavorable to the reputation of Carinus.]
The only merit of the administration of Carinus that history could record, or poetry celebrate, was the uncommon splendor with which, in his own and his brother's name, he exhibited the Roman games of the theatre, the circus, and the amphitheatre. More than twenty years afterwards, when the courtiers of Diocletian represented to their frugal sovereign the fame and popularity of his munificent predecessor, he acknowledged that the reign of Carinus had indeed been a reign of pleasure.  But this vain prodigality, which the prudence of Diocletian might justly despise, was enjoyed with surprise and transport by the Roman people. The oldest of the citizens, recollecting the spectacles of former days, the triumphal pomp of Probus or Aurelian, and the secular games of the emperor Philip, acknowledged that they were all surpassed by the superior magnificence of Carinus. 
[Footnote 83: Vopiscus in Hist. August. p. 254. He calls him Carus, but the sense is sufficiently obvious, and the words were often confounded.]
[Footnote 84: See Calphurnius, Eclog. vii. 43. We may observe, that the spectacles of Probus were still recent, and that the poet is seconded by the historian.]
The spectacles of Carinus may therefore be best illustrated by the observation of some particulars, which history has condescended to relate concerning those of his predecessors. If we confine ourselves solely to the hunting of wild beasts, however we may censure the vanity of the design or the cruelty of the execution, we are obliged to confess that neither before nor since the time of the Romans so much art and expense have ever been lavished for the amusement of the people.  By the order of Probus, a great quantity of large trees, torn up by the roots, were transplanted into the midst of the circus. The spacious and shady forest was immediately filled with a thousand ostriches, a thousand stags, a thousand fallow deer, and a thousand wild boars; and all this variety of game was abandoned to the riotous impetuosity of the multitude. The tragedy of the succeeding day consisted in the massacre of a hundred lions, an equal number of lionesses, two hundred leopards, and three hundred bears.  The collection prepared by the younger Gordian for his triumph, and which his successor exhibited in the secular games, was less remarkable by the number than by the singularity of the animals. Twenty zebras displayed their elegant forms and variegated beauty to the eyes of the Roman people.  Ten elks, and as many camelopards, the loftiest and most harmless creatures that wander over the plains of Sarmatia and Aethiopia, were contrasted with thirty African hyaenas and ten Indian tigers, the most implacable savages of the torrid zone. The unoffending strength with which Nature has endowed the greater quadrupeds was admired in the rhinoceros, the hippopotamus of the Nile,  and a majestic troop of thirty-two elephants.  While the populace gazed with stupid wonder on the splendid show, the naturalist might indeed observe the figure and properties of so many different species, transported from every part of the ancient world into the amphitheatre of Rome. But this accidental benefit, which science might derive from folly, is surely insufficient to justify such a wanton abuse of the public riches. There occurs, however, a single instance in the first Punic war, in which the senate wisely connected this amusement of the multitude with the interest of the state. A considerable number of elephants, taken in the defeat of the Carthaginian army, were driven through the circus by a few slaves, armed only with blunt javelins.  The useful spectacle served to impress the Roman soldier with a just contempt for those unwieldy animals; and he no longer dreaded to encounter them in the ranks of war.
[Footnote 85: The philosopher Montaigne (Essais, l. iii. 6) gives a very just and lively view of Roman magnificence in these spectacles.]
[Footnote 86: Vopiscus in Hist. August. p. 240.]
[Footnote 87: They are called Onagri; but the number is too inconsiderable for mere wild asses. Cuper (de Elephantis Exercitat. ii. 7) has proved from Oppian, Dion, and an anonymous Greek, that zebras had been seen at Rome. They were brought from some island of the ocean, perhaps Madagascar.]
[Footnote 88: Carinus gave a hippopotamus, (see Calphurn. Eclog. vi. 66.) In the latter spectacles, I do not recollect any crocodiles, of which Augustus once exhibited thirty-six. Dion Cassius, l. lv. p. 781.]
[Footnote 89: Capitolin. in Hist. August. p. 164, 165. We are not acquainted with the animals which he calls archeleontes; some read argoleontes others agrioleontes: both corrections are very nugatory]
[Footnote 90: Plin. Hist. Natur. viii. 6, from the annals of Piso.]
The hunting or exhibition of wild beasts was conducted with a magnificence suitable to a people who styled themselves the masters of the world; nor was the edifice appropriated to that entertainment less expressive of Roman greatness. Posterity admires, and will long admire, the awful remains of the amphitheatre of Titus, which so well deserved the epithet of Colossal.  It was a building of an elliptic figure, five hundred and sixty-four feet in length, and four hundred and sixty-seven in breadth, founded on fourscore arches, and rising, with four successive orders of architecture, to the height of one hundred and forty feet.  The outside of the edifice was encrusted with marble, and decorated with statues. The slopes of the vast concave, which formed the inside, were filled and surrounded with sixty or eighty rows of seats of marble likewise, covered with cushions, and capable of receiving with ease about fourscore thousand spectators.  Sixty-four vomitories (for by that name the doors were very aptly distinguished) poured forth the immense multitude; and the entrances, passages, and staircases were contrived with such exquisite skill, that each person, whether of the senatorial, the equestrian, or the plebeian order, arrived at his destined place without trouble or confusion.  Nothing was omitted, which, in any respect, could be subservient to the convenience and pleasure of the spectators.
They were protected from the sun and rain by an ample canopy, occasionally drawn over their heads. The air was continally refreshed by the playing of fountains, and profusely impregnated by the grateful scent of aromatics. In the centre of the edifice, the arena, or stage, was strewed with the finest sand, and successively assumed the most different forms. At one moment it seemed to rise out of the earth, like the garden of the Hesperides, and was afterwards broken into the rocks and caverns of Thrace. The subterraneous pipes conveyed an inexhaustible supply of water; and what had just before appeared a level plain, might be suddenly converted into a wide lake, covered with armed vessels, and replenished with the monsters of the deep.  In the decoration of these scenes, the Roman emperors displayed their wealth and liberality; and we read on various occasions that the whole furniture of the amphitheatre consisted either of silver, or of gold, or of amber.  The poet who describes the games of Carinus, in the character of a shepherd, attracted to the capital by the fame of their magnificence, affirms that the nets designed as a defence against the wild beasts, were of gold wire; that the porticos were gilded; and that the belt or circle which divided the several ranks of spectators from each other was studded with a precious mosaic of beautiful stones. 
[Footnote 91: See Maffei, Verona Illustrata, p. iv. l. i. c. 2.]
[Footnote 92: Maffei, l. ii. c. 2. The height was very much exaggerated by the ancients. It reached almost to the heavens, according to Calphurnius, (Eclog. vii. 23,) and surpassed the ken of human sight, according to Ammianus Marcellinus (xvi. 10.) Yet how trifling to the great pyramid of Egypt, which rises 500 feet perpendicular]
[Footnote 93: According to different copies of Victor, we read 77,000, or 87,000 spectators; but Maffei (l. ii. c. 12) finds room on the open seats for no more than 34,000. The remainder were contained in the upper covered galleries.]
[Footnote 94: See Maffei, l. ii. c. 5—12. He treats the very difficult subject with all possible clearness, and like an architect, as well as an antiquarian.]
[Footnote 95: Calphurn. Eclog vii. 64, 73. These lines are curious, and the whole eclogue has been of infinite use to Maffei. Calphurnius, as well as Martial, (see his first book,) was a poet; but when they described the amphitheatre, they both wrote from their own senses, and to those of the Romans.]
[Footnote 96: Consult Plin. Hist. Natur. xxxiii. 16, xxxvii. 11.]
[Footnote 97: Balteus en gemmis, en inlita porticus auro Certatim radiant, &c. Calphurn. vii.]
In the midst of this glittering pageantry, the emperor Carinus, secure of his fortune, enjoyed the acclamations of the people, the flattery of his courtiers, and the songs of the poets, who, for want of a more essential merit, were reduced to celebrate the divine graces of his person.  In the same hour, but at the distance of nine hundred miles from Rome, his brother expired; and a sudden revolution transferred into the hands of a stranger the sceptre of the house of Carus. 
[Footnote 98: Et Martis vultus et Apollinis esse putavi, says Calphurnius; but John Malala, who had perhaps seen pictures of Carinus, describes him as thick, short, and white, tom. i. p. 403.]
[Footnote 99: With regard to the time when these Roman games were celebrated, Scaliger, Salmasius, and Cuper have given themselves a great deal of trouble to perplex a very clear subject.]
The sons of Carus never saw each other after their father's death. The arrangements which their new situation required were probably deferred till the return of the younger brother to Rome, where a triumph was decreed to the young emperors for the glorious success of the Persian war.  It is uncertain whether they intended to divide between them the administration, or the provinces, of the empire; but it is very unlikely that their union would have proved of any long duration. The jealousy of power must have been inflamed by the opposition of characters. In the most corrupt of times, Carinus was unworthy to live: Numerian deserved to reign in a happier period. His affable manners and gentle virtues secured him, as soon as they became known, the regard and affections of the public. He possessed the elegant accomplishments of a poet and orator, which dignify as well as adorn the humblest and the most exalted station. His eloquence, however it was applauded by the senate, was formed not so much on the model of Cicero, as on that of the modern declaimers; but in an age very far from being destitute of poetical merit, he contended for the prize with the most celebrated of his contemporaries, and still remained the friend of his rivals; a circumstance which evinces either the goodness of his heart, or the superiority of his genius.  But the talents of Numerian were rather of the contemplative than of the active kind. When his father's elevation reluctantly forced him from the shade of retirement, neither his temper nor his pursuits had qualified him for the command of armies. His constitution was destroyed by the hardships of the Persian war; and he had contracted, from the heat of the climate,  such a weakness in his eyes, as obliged him, in the course of a long retreat, to confine himself to the solitude and darkness of a tent or litter.
The administration of all affairs, civil as well as military, was devolved on Arrius Aper, the Praetorian praefect, who to the power of his important office added the honor of being father-in-law to Numerian. The Imperial pavilion was strictly guarded by his most trusty adherents; and during many days, Aper delivered to the army the supposed mandates of their invisible sovereign. 
[Footnote 100: Nemesianus (in the Cynegeticon) seems to anticipate in his fancy that auspicious day.]
[Footnote 101: He won all the crowns from Nemesianus, with whom he vied in didactic poetry. The senate erected a statue to the son of Carus, with a very ambiguous inscription, "To the most powerful of orators." See Vopiscus in Hist. August. p. 251.]
[Footnote 102: A more natural cause, at least, than that assigned by Vopiscus, (Hist. August. p. 251,) incessantly weeping for his father's death.]
[Footnote 103: In the Persian war, Aper was suspected of a design to betray Carus. Hist. August. p. 250.]
It was not till eight months after the death of Carus, that the Roman army, returning by slow marches from the banks of the Tigris, arrived on those of the Thracian Bosphorus. The legions halted at Chalcedon in Asia, while the court passed over to Heraclea, on the European side of the Propontis.  But a report soon circulated through the camp, at first in secret whispers, and at length in loud clamors, of the emperor's death, and of the presumption of his ambitious minister, who still exercised the sovereign power in the name of a prince who was no more. The impatience of the soldiers could not long support a state of suspense. With rude curiosity they broke into the Imperial tent, and discovered only the corpse of Numerian.  The gradual decline of his health might have induced them to believe that his death was natural; but the concealment was interpreted as an evidence of guilt, and the measures which Aper had taken to secure his election became the immediate occasion of his ruin Yet, even in the transport of their rage and grief, the troops observed a regular proceeding, which proves how firmly discipline had been reestablished by the martial successors of Gallienus. A general assembly of the army was appointed to be held at Chalcedon, whither Aper was transported in chains, as a prisoner and a criminal. A vacant tribunal was erected in the midst of the camp, and the generals and tribunes formed a great military council. They soon announced to the multitude that their choice had fallen on Diocletian, commander of the domestics or body-guards, as the person the most capable of revenging and succeeding their beloved emperor. The future fortunes of the candidate depended on the chance or conduct of the present hour. Conscious that the station which he had filled exposed him to some suspicions, Diocletian ascended the tribunal, and raising his eyes towards the Sun, made a solemn profession of his own innocence, in the presence of that all-seeing Deity.  Then, assuming the tone of a sovereign and a judge, he commanded that Aper should be brought in chains to the foot of the tribunal. "This man," said he, "is the murderer of Numerian;" and without giving him time to enter on a dangerous justification, drew his sword, and buried it in the breast of the unfortunate praefect. A charge supported by such decisive proof was admitted without contradiction, and the legions, with repeated acclamations, acknowledged the justice and authority of the emperor Diocletian. 
[Footnote 104: We are obliged to the Alexandrian Chronicle, p. 274, for the knowledge of the time and place where Diocletian was elected emperor.]
[Footnote 105: Hist. August. p. 251. Eutrop. ix. 88. Hieronym. in Chron. According to these judicious writers, the death of Numerian was discovered by the stench of his dead body. Could no aromatics be found in the Imperial household?]
[Footnote 106: Aurel. Victor. Eutropius, ix. 20. Hieronym. in Chron.]
[Footnote 107: Vopiscus in Hist. August. p. 252. The reason why Diocletian killed Aper, (a wild boar,) was founded on a prophecy and a pun, as foolish as they are well known.]
Before we enter upon the memorable reign of that prince, it will be proper to punish and dismiss the unworthy brother of Numerian. Carinus possessed arms and treasures sufficient to support his legal title to the empire. But his personal vices overbalanced every advantage of birth and situation. The most faithful servants of the father despised the incapacity, and dreaded the cruel arrogance, of the son. The hearts of the people were engaged in favor of his rival, and even the senate was inclined to prefer a usurper to a tyrant. The arts of Diocletian inflamed the general discontent; and the winter was employed in secret intrigues, and open preparations for a civil war. In the spring, the forces of the East and of the West encountered each other in the plains of Margus, a small city of Maesia, in the neighborhood of the Danube.  The troops, so lately returned from the Persian war, had acquired their glory at the expense of health and numbers; nor were they in a condition to contend with the unexhausted strength of the legions of Europe. Their ranks were broken, and, for a moment, Diocletian despaired of the purple and of life. But the advantage which Carinus had obtained by the valor of his soldiers, he quickly lost by the infidelity of his officers. A tribune, whose wife he had seduced, seized the opportunity of revenge, and, by a single blow, extinguished civil discord in the blood of the adulterer. 
[Footnote 108: Eutropius marks its situation very accurately; it was between the Mons Aureus and Viminiacum. M. d'Anville (Geographic Ancienne, tom. i. p. 304) places Margus at Kastolatz in Servia, a little below Belgrade and Semendria. * Note: Kullieza—Eton Atlas—M.]
[Footnote 109: Hist. August. p. 254. Eutropius, ix. 20. Aurelius Victor et Epitome]
Chapter XIII: Reign Of Diocletian And This Three Associates.—Part I.
The Reign Of Diocletian And His Three Associates, Maximian, Galerius, And Constantius.—General Reestablishment Of Order And Tranquillity.—The Persian War, Victory, And Triumph.—The New Form Of Administration.—Abdication And Retirement Of Diocletian And Maximian.
As the reign of Diocletian was more illustrious than that of any of his predecessors, so was his birth more abject and obscure. The strong claims of merit and of violence had frequently superseded the ideal prerogatives of nobility; but a distinct line of separation was hitherto preserved between the free and the servile part of mankind. The parents of Diocletian had been slaves in the house of Anulinus, a Roman senator; nor was he himself distinguished by any other name than that which he derived from a small town in Dalmatia, from whence his mother deduced her origin.  It is, however, probable that his father obtained the freedom of the family, and that he soon acquired an office of scribe, which was commonly exercised by persons of his condition.  Favorable oracles, or rather the consciousness of superior merit, prompted his aspiring son to pursue the profession of arms and the hopes of fortune; and it would be extremely curious to observe the gradation of arts and accidents which enabled him in the end to fulfil those oracles, and to display that merit to the world. Diocletian was successively promoted to the government of Maesia, the honors of the consulship, and the important command of the guards of the palace. He distinguished his abilities in the Persian war; and after the death of Numerian, the slave, by the confession and judgment of his rivals, was declared the most worthy of the Imperial throne. The malice of religious zeal, whilst it arraigns the savage fierceness of his colleague Maximian, has affected to cast suspicions on the personal courage of the emperor Diocletian.  It would not be easy to persuade us of the cowardice of a soldier of fortune, who acquired and preserved the esteem of the legions as well as the favor of so many warlike princes. Yet even calumny is sagacious enough to discover and to attack the most vulnerable part. The valor of Diocletian was never found inadequate to his duty, or to the occasion; but he appears not to have possessed the daring and generous spirit of a hero, who courts danger and fame, disdains artifice, and boldly challenges the allegiance of his equals. His abilities were useful rather than splendid; a vigorous mind, improved by the experience and study of mankind; dexterity and application in business; a judicious mixture of liberality and economy, of mildness and rigor; profound dissimulation, under the disguise of military frankness; steadiness to pursue his ends; flexibility to vary his means; and, above all, the great art of submitting his own passions, as well as those of others, to the interest of his ambition, and of coloring his ambition with the most specious pretences of justice and public utility. Like Augustus, Diocletian may be considered as the founder of a new empire. Like the adopted son of Caesar, he was distinguished as a statesman rather than as a warrior; nor did either of those princes employ force, whenever their purpose could be effected by policy.
[Footnote 1: Eutrop. ix. 19. Victor in Epitome. The town seems to have been properly called Doclia, from a small tribe of Illyrians, (see Cellarius, Geograph. Antiqua, tom. i. p. 393;) and the original name of the fortunate slave was probably Docles; he first lengthened it to the Grecian harmony of Diocles, and at length to the Roman majesty of Diocletianus. He likewise assumed the Patrician name of Valerius and it is usually given him by Aurelius Victor.]
[Footnote 2: See Dacier on the sixth satire of the second book of Horace Cornel. Nepos, 'n Vit. Eumen. c. l.]
[Footnote 3: Lactantius (or whoever was the author of the little treatise De Mortibus Persecutorum) accuses Diocletian of timidity in two places, c. 7. 8. In chap. 9 he says of him, "erat in omni tumultu meticulosu et animi disjectus."]
The victory of Diocletian was remarkable for its singular mildness. A people accustomed to applaud the clemency of the conqueror, if the usual punishments of death, exile, and confiscation, were inflicted with any degree of temper and equity, beheld, with the most pleasing astonishment, a civil war, the flames of which were extinguished in the field of battle. Diocletian received into his confidence Aristobulus, the principal minister of the house of Carus, respected the lives, the fortunes, and the dignity, of his adversaries, and even continued in their respective stations the greater number of the servants of Carinus.  It is not improbable that motives of prudence might assist the humanity of the artful Dalmatian; of these servants, many had purchased his favor by secret treachery; in others, he esteemed their grateful fidelity to an unfortunate master. The discerning judgment of Aurelian, of Probus, and of Carus, had filled the several departments of the state and army with officers of approved merit, whose removal would have injured the public service, without promoting the interest of his successor. Such a conduct, however, displayed to the Roman world the fairest prospect of the new reign, and the emperor affected to confirm this favorable prepossession, by declaring, that, among all the virtues of his predecessors, he was the most ambitious of imitating the humane philosophy of Marcus Antoninus. 
[Footnote 4: In this encomium, Aurelius Victor seems to convey a just, though indirect, censure of the cruelty of Constantius. It appears from the Fasti, that Aristobulus remained praefect of the city, and that he ended with Diocletian the consulship which he had commenced with Carinus.]
[Footnote 5: Aurelius Victor styles Diocletian, "Parentum potius quam Dominum." See Hist. August. p. 30.]
The first considerable action of his reign seemed to evince his sincerity as well as his moderation. After the example of Marcus, he gave himself a colleague in the person of Maximian, on whom he bestowed at first the title of Caesar, and afterwards that of Augustus.  But the motives of his conduct, as well as the object of his choice, were of a very different nature from those of his admired predecessor. By investing a luxurious youth with the honors of the purple, Marcus had discharged a debt of private gratitude, at the expense, indeed, of the happiness of the state. By associating a friend and a fellow-soldier to the labors of government, Diocletian, in a time of public danger, provided for the defence both of the East and of the West. Maximian was born a peasant, and, like Aurelian, in the territory of Sirmium. Ignorant of letters,  careless of laws, the rusticity of his appearance and manners still betrayed in the most elevated fortune the meanness of his extraction. War was the only art which he professed. In a long course of service, he had distinguished himself on every frontier of the empire; and though his military talents were formed to obey rather than to command, though, perhaps, he never attained the skill of a consummate general, he was capable, by his valor, constancy, and experience, of executing the most arduous undertakings. Nor were the vices of Maximian less useful to his benefactor. Insensible to pity, and fearless of consequences, he was the ready instrument of every act of cruelty which the policy of that artful prince might at once suggest and disclaim. As soon as a bloody sacrifice had been offered to prudence or to revenge, Diocletian, by his seasonable intercession, saved the remaining few whom he had never designed to punish, gently censured the severity of his stern colleague, and enjoyed the comparison of a golden and an iron age, which was universally applied to their opposite maxims of government. Notwithstanding the difference of their characters, the two emperors maintained, on the throne, that friendship which they had contracted in a private station. The haughty, turbulent spirit of Maximian, so fatal, afterwards, to himself and to the public peace, was accustomed to respect the genius of Diocletian, and confessed the ascendant of reason over brutal violence.  From a motive either of pride or superstition, the two emperors assumed the titles, the one of Jovius, the other of Herculius. Whilst the motion of the world (such was the language of their venal orators) was maintained by the all-seeing wisdom of Jupiter, the invincible arm of Hercules purged the earth from monsters and tyrants. 
[Footnote 6: The question of the time when Maximian received the honors of Caesar and Augustus has divided modern critics, and given occasion to a great deal of learned wrangling. I have followed M. de Tillemont, (Histoire des Empereurs, tom. iv. p. 500-505,) who has weighed the several reasons and difficulties with his scrupulous accuracy. * Note: Eckbel concurs in this view, viii p. 15.—M.]
[Footnote 7: In an oration delivered before him, (Panegyr. Vet. ii. 8,) Mamertinus expresses a doubt, whether his hero, in imitating the conduct of Hannibal and Scipio, had ever heard of their names. From thence we may fairly infer, that Maximian was more desirous of being considered as a soldier than as a man of letters; and it is in this manner that we can often translate the language of flattery into that of truth.]
[Footnote 8: Lactantius de M. P. c. 8. Aurelius Victor. As among the Panegyrics, we find orations pronounced in praise of Maximian, and others which flatter his adversaries at his expense, we derive some knowledge from the contrast.]
[Footnote 9: See the second and third Panegyrics, particularly iii. 3, 10, 14 but it would be tedious to copy the diffuse and affected expressions of their false eloquence. With regard to the titles, consult Aurel. Victor Lactantius de M. P. c. 52. Spanheim de Usu Numismatum, &c. xii 8.]
But even the omnipotence of Jovius and Herculius was insufficient to sustain the weight of the public administration. The prudence of Diocletian discovered that the empire, assailed on every side by the barbarians, required on every side the presence of a great army, and of an emperor. With this view, he resolved once more to divide his unwieldy power, and with the inferior title of Caesars,  to confer on two generals of approved merit an unequal share of the sovereign authority.  Galerius, surnamed Armentarius, from his original profession of a herdsman, and Constantius, who from his pale complexion had acquired the denomination of Chlorus,  were the two persons invested with the second honors of the Imperial purple. In describing the country, extraction, and manners of Herculius, we have already delineated those of Galerius, who was often, and not improperly, styled the younger Maximian, though, in many instances both of virtue and ability, he appears to have possessed a manifest superiority over the elder. The birth of Constantius was less obscure than that of his colleagues. Eutropius, his father, was one of the most considerable nobles of Dardania, and his mother was the niece of the emperor Claudius.  Although the youth of Constantius had been spent in arms, he was endowed with a mild and amiable disposition, and the popular voice had long since acknowledged him worthy of the rank which he at last attained. To strengthen the bonds of political, by those of domestic, union, each of the emperors assumed the character of a father to one of the Caesars, Diocletian to Galerius, and Maximian to Constantius; and each, obliging them to repudiate their former wives, bestowed his daughter in marriage or his adopted son.  These four princes distributed among themselves the wide extent of the Roman empire. The defence of Gaul, Spain,  and Britain, was intrusted to Constantius: Galerius was stationed on the banks of the Danube, as the safeguard of the Illyrian provinces. Italy and Africa were considered as the department of Maximian; and for his peculiar portion, Diocletian reserved Thrace, Egypt, and the rich countries of Asia. Every one was sovereign with his own jurisdiction; but their united authority extended over the whole monarchy, and each of them was prepared to assist his colleagues with his counsels or presence. The Caesars, in their exalted rank, revered the majesty of the emperors, and the three younger princes invariably acknowledged, by their gratitude and obedience, the common parent of their fortunes. The suspicious jealousy of power found not any place among them; and the singular happiness of their union has been compared to a chorus of music, whose harmony was regulated and maintained by the skilful hand of the first artist. 
[Footnote 901: On the relative power of the Augusti and the Caesars, consult a dissertation at the end of Manso's Leben Constantius des Grossen—M.]
[Footnote 10: Aurelius Victor. Victor in Epitome. Eutrop. ix. 22. Lactant de M. P. c. 8. Hieronym. in Chron.]
[Footnote 11: It is only among the modern Greeks that Tillemont can discover his appellation of Chlorus. Any remarkable degree of paleness seems inconsistent with the rubor mentioned in Panegyric, v. 19.]
[Footnote 12: Julian, the grandson of Constantius, boasts that his family was derived from the warlike Maesians. Misopogon, p. 348. The Dardanians dwelt on the edge of Maesia.]
[Footnote 13: Galerius married Valeria, the daughter of Diocletian; if we speak with strictness, Theodora, the wife of Constantius, was daughter only to the wife of Maximian. Spanheim, Dissertat, xi. 2.]
[Footnote 14: This division agrees with that of the four praefectures; yet there is some reason to doubt whether Spain was not a province of Maximian. See Tillemont, tom. iv. p. 517. * Note: According to Aurelius Victor and other authorities, Thrace belonged to the division of Galerius. See Tillemont, iv. 36. But the laws of Diocletian are in general dated in Illyria or Thrace.—M.]
[Footnote 15: Julian in Caesarib. p. 315. Spanheim's notes to the French translation, p. 122.]
This important measure was not carried into execution till about six years after the association of Maximian, and that interval of time had not been destitute of memorable incidents. But we have preferred, for the sake of perspicuity, first to describe the more perfect form of Diocletian's government, and afterwards to relate the actions of his reign, following rather the natural order of the events, than the dates of a very doubtful chronology.
The first exploit of Maximian, though it is mentioned in a few words by our imperfect writers, deserves, from its singularity, to be recorded in a history of human manners. He suppressed the peasants of Gaul, who, under the appellation of Bagaudae,  had risen in a general insurrection; very similar to those which in the fourteenth century successively afflicted both France and England.  It should seem that very many of those institutions, referred by an easy solution to the feudal system, are derived from the Celtic barbarians. When Caesar subdued the Gauls, that great nation was already divided into three orders of men; the clergy, the nobility, and the common people. The first governed by superstition, the second by arms, but the third and last was not of any weight or account in their public councils. It was very natural for the plebeians, oppressed by debt, or apprehensive of injuries, to implore the protection of some powerful chief, who acquired over their persons and property the same absolute right as, among the Greeks and Romans, a master exercised over his slaves.  The greatest part of the nation was gradually reduced into a state of servitude; compelled to perpetual labor on the estates of the Gallic nobles, and confined to the soil, either by the real weight of fetters, or by the no less cruel and forcible restraints of the laws. During the long series of troubles which agitated Gaul, from the reign of Gallienus to that of Diocletian, the condition of these servile peasants was peculiarly miserable; and they experienced at once the complicated tyranny of their masters, of the barbarians, of the soldiers, and of the officers of the revenue. 
[Footnote 16: The general name of Bagaudoe (in the signification of rebels) continued till the fifth century in Gaul. Some critics derive it from a Celtic word Bagad, a tumultuous assembly. Scaliger ad Euseb. Du Cange Glossar. (Compare S. Turner, Anglo-Sax. History, i. 214.—M.)]
[Footnote 17: Chronique de Froissart, vol. i. c. 182, ii. 73, 79. The naivete of his story is lost in our best modern writers.]
[Footnote 18: Caesar de Bell. Gallic. vi. 13. Orgetorix, the Helvetian, could arm for his defence a body of ten thousand slaves.]
[Footnote 19: Their oppression and misery are acknowledged by Eumenius (Panegyr. vi. 8,) Gallias efferatas injuriis.]
Their patience was at last provoked into despair. On every side they rose in multitudes, armed with rustic weapons, and with irresistible fury. The ploughman became a foot soldier, the shepherd mounted on horseback, the deserted villages and open towns were abandoned to the flames, and the ravages of the peasants equalled those of the fiercest barbarians.  They asserted the natural rights of men, but they asserted those rights with the most savage cruelty. The Gallic nobles, justly dreading their revenge, either took refuge in the fortified cities, or fled from the wild scene of anarchy. The peasants reigned without control; and two of their most daring leaders had the folly and rashness to assume the Imperial ornaments.  Their power soon expired at the approach of the legions. The strength of union and discipline obtained an easy victory over a licentious and divided multitude.  A severe retaliation was inflicted on the peasants who were found in arms; the affrighted remnant returned to their respective habitations, and their unsuccessful effort for freedom served only to confirm their slavery. So strong and uniform is the current of popular passions, that we might almost venture, from very scanty materials, to relate the particulars of this war; but we are not disposed to believe that the principal leaders, Aelianus and Amandus, were Christians,  or to insinuate, that the rebellion, as it happened in the time of Luther, was occasioned by the abuse of those benevolent principles of Christianity, which inculcate the natural freedom of mankind.
[Footnote 20: Panegyr. Vet. ii. 4. Aurelius Victor.]
[Footnote 21: Aelianus and Amandus. We have medals coined by them Goltzius in Thes. R. A. p. 117, 121.]
[Footnote 22: Levibus proeliis domuit. Eutrop. ix. 20.]
[Footnote 23: The fact rests indeed on very slight authority, a life of St. Babolinus, which is probably of the seventh century. See Duchesne Scriptores Rer. Francicar. tom. i. p. 662.]
Maximian had no sooner recovered Gaul from the hands of the peasants, than he lost Britain by the usurpation of Carausius. Ever since the rash but successful enterprise of the Franks under the reign of Probus, their daring countrymen had constructed squadrons of light brigantines, in which they incessantly ravaged the provinces adjacent to the ocean.  To repel their desultory incursions, it was found necessary to create a naval power; and the judicious measure was prosecuted with prudence and vigor. Gessoriacum, or Boulogne, in the straits of the British Channel, was chosen by the emperor for the station of the Roman fleet; and the command of it was intrusted to Carausius, a Menapian of the meanest origin,  but who had long signalized his skill as a pilot, and his valor as a soldier. The integrity of the new admiral corresponded not with his abilities. When the German pirates sailed from their own harbors, he connived at their passage, but he diligently intercepted their return, and appropriated to his own use an ample share of the spoil which they had acquired. The wealth of Carausius was, on this occasion, very justly considered as an evidence of his guilt; and Maximian had already given orders for his death. But the crafty Menapian foresaw and prevented the severity of the emperor. By his liberality he had attached to his fortunes the fleet which he commanded, and secured the barbarians in his interest. From the port of Boulogne he sailed over to Britain, persuaded the legion, and the auxiliaries which guarded that island, to embrace his party, and boldly assuming, with the Imperial purple, the title of Augustus defied the justice and the arms of his injured sovereign. 
[Footnote 24: Aurelius Victor calls them Germans. Eutropius (ix. 21) gives them the name of Saxons. But Eutropius lived in the ensuing century, and seems to use the language of his own times.]
[Footnote 25: The three expressions of Eutropius, Aurelius Victor, and Eumenius, "vilissime natus," "Bataviae alumnus," and "Menapiae civis," give us a very doubtful account of the birth of Carausius. Dr. Stukely, however, (Hist. of Carausius, p. 62,) chooses to make him a native of St. David's and a prince of the blood royal of Britain. The former idea he had found in Richard of Cirencester, p. 44. * Note: The Menapians were settled between the Scheldt and the Meuse, is the northern part of Brabant. D'Anville, Geogr. Anc. i. 93.—G.]
[Footnote 26: Panegyr. v. 12. Britain at this time was secure, and slightly guarded.]
When Britain was thus dismembered from the empire, its importance was sensibly felt, and its loss sincerely lamented. The Romans celebrated, and perhaps magnified, the extent of that noble island, provided on every side with convenient harbors; the temperature of the climate, and the fertility of the soil, alike adapted for the production of corn or of vines; the valuable minerals with which it abounded; its rich pastures covered with innumerable flocks, and its woods free from wild beasts or venomous serpents. Above all, they regretted the large amount of the revenue of Britain, whilst they confessed, that such a province well deserved to become the seat of an independent monarchy.  During the space of seven years it was possessed by Carausius; and fortune continued propitious to a rebellion supported with courage and ability. The British emperor defended the frontiers of his dominions against the Caledonians of the North, invited, from the continent, a great number of skilful artists, and displayed, on a variety of coins that are still extant, his taste and opulence. Born on the confines of the Franks, he courted the friendship of that formidable people, by the flattering imitation of their dress and manners. The bravest of their youth he enlisted among his land or sea forces; and, in return for their useful alliance, he communicated to the barbarians the dangerous knowledge of military and naval arts. Carausius still preserved the possession of Boulogne and the adjacent country. His fleets rode triumphant in the channel, commanded the mouths of the Seine and of the Rhine, ravaged the coasts of the ocean, and diffused beyond the columns of Hercules the terror of his name. Under his command, Britain, destined in a future age to obtain the empire of the sea, already assumed its natural and respectable station of a maritime power. 
[Footnote 27: Panegyr. Vet v 11, vii. 9. The orator Eumenius wished to exalt the glory of the hero (Constantius) with the importance of the conquest. Notwithstanding our laudable partiality for our native country, it is difficult to conceive, that, in the beginning of the fourth century England deserved all these commendations. A century and a half before, it hardly paid its own establishment.]
[Footnote 28: As a great number of medals of Carausius are still preserved, he is become a very favorite object of antiquarian curiosity, and every circumstance of his life and actions has been investigated with sagacious accuracy. Dr. Stukely, in particular, has devoted a large volume to the British emperor. I have used his materials, and rejected most of his fanciful conjectures.]
By seizing the fleet of Boulogne, Carausius had deprived his master of the means of pursuit and revenge. And when, after a vast expense of time and labor, a new armament was launched into the water,  the Imperial troops, unaccustomed to that element, were easily baffled and defeated by the veteran sailors of the usurper. This disappointed effort was soon productive of a treaty of peace. Diocletian and his colleague, who justly dreaded the enterprising spirit of Carausius, resigned to him the sovereignty of Britain, and reluctantly admitted their perfidious servant to a participation of the Imperial honors.  But the adoption of the two Caesars restored new vigor to the Romans arms; and while the Rhine was guarded by the presence of Maximian, his brave associate Constantius assumed the conduct of the British war. His first enterprise was against the important place of Boulogne. A stupendous mole, raised across the entrance of the harbor, intercepted all hopes of relief. The town surrendered after an obstinate defence; and a considerable part of the naval strength of Carausius fell into the hands of the besiegers. During the three years which Constantius employed in preparing a fleet adequate to the conquest of Britain, he secured the coast of Gaul, invaded the country of the Franks, and deprived the usurper of the assistance of those powerful allies.
[Footnote 29: When Mamertinus pronounced his first panegyric, the naval preparations of Maximian were completed; and the orator presaged an assured victory. His silence in the second panegyric might alone inform us that the expedition had not succeeded.]
[Footnote 30: Aurelius Victor, Eutropius, and the medals, (Pax Augg.) inform us of this temporary reconciliation; though I will not presume (as Dr. Stukely has done, Medallic History of Carausius, p. 86, &c) to insert the identical articles of the treaty.]
Before the preparations were finished, Constantius received the intelligence of the tyrant's death, and it was considered as a sure presage of the approaching victory. The servants of Carausius imitated the example of treason which he had given. He was murdered by his first minister, Allectus, and the assassin succeeded to his power and to his danger. But he possessed not equal abilities either to exercise the one or to repel the other.
He beheld, with anxious terror, the opposite shores of the continent already filled with arms, with troops, and with vessels; for Constantius had very prudently divided his forces, that he might likewise divide the attention and resistance of the enemy. The attack was at length made by the principal squadron, which, under the command of the praefect Asclepiodatus, an officer of distinguished merit, had been assembled in the north of the Seine. So imperfect in those times was the art of navigation, that orators have celebrated the daring courage of the Romans, who ventured to set sail with a side-wind, and on a stormy day. The weather proved favorable to their enterprise. Under the cover of a thick fog, they escaped the fleet of Allectus, which had been stationed off the Isle of Wight to receive them, landed in safety on some part of the western coast, and convinced the Britons, that a superiority of naval strength will not always protect their country from a foreign invasion. Asclepiodatus had no sooner disembarked the imperial troops, then he set fire to his ships; and, as the expedition proved fortunate, his heroic conduct was universally admired. The usurper had posted himself near London, to expect the formidable attack of Constantius, who commanded in person the fleet of Boulogne; but the descent of a new enemy required his immediate presence in the West. He performed this long march in so precipitate a manner, that he encountered the whole force of the praefect with a small body of harassed and disheartened troops. The engagement was soon terminated by the total defeat and death of Allectus; a single battle, as it has often happened, decided the fate of this great island; and when Constantius landed on the shores of Kent, he found them covered with obedient subjects. Their acclamations were loud and unanimous; and the virtues of the conqueror may induce us to believe, that they sincerely rejoiced in a revolution, which, after a separation of ten years, restored Britain to the body of the Roman empire. 
[Footnote 31: With regard to the recovery of Britain, we obtain a few hints from Aurelius Victor and Eutropius.]
Chapter XIII: Reign Of Diocletian And This Three Associates.—Part II.
Britain had none but domestic enemies to dread; and as long as the governors preserved their fidelity, and the troops their discipline, the incursions of the naked savages of Scotland or Ireland could never materially affect the safety of the province.
The peace of the continent, and the defence of the principal rivers which bounded the empire, were objects of far greater difficulty and importance. The policy of Diocletian, which inspired the councils of his associates, provided for the public tranquility, by encouraging a spirit of dissension among the barbarians, and by strengthening the fortifications of the Roman limit. In the East he fixed a line of camps from Egypt to the Persian dominions, and for every camp, he instituted an adequate number of stationary troops, commanded by their respective officers, and supplied with every kind of arms, from the new arsenals which he had formed at Antioch, Emesa, and Damascus.  Nor was the precaution of the emperor less watchful against the well-known valor of the barbarians of Europe. From the mouth of the Rhine to that of the Danube, the ancient camps, towns, and citidels, were diligently reestablished, and, in the most exposed places, new ones were skilfully constructed: the strictest vigilance was introduced among the garrisons of the frontier, and every expedient was practised that could render the long chain of fortifications firm and impenetrable.  A barrier so respectable was seldom violated, and the barbarians often turned against each other their disappointed rage. The Goths, the Vandals, the Gepidae, the Burgundians, the Alemanni, wasted each other's strength by destructive hostilities: and whosoever vanquished, they vanquished the enemies of Rome. The subjects of Diocletian enjoyed the bloody spectacle, and congratulated each other, that the mischiefs of civil war were now experienced only by the barbarians. 
[Footnote 32: John Malala, in Chron, Antiochen. tom. i. p. 408, 409.]
[Footnote 33: Zosim. l. i. p. 3. That partial historian seems to celebrate the vigilance of Diocletian with a design of exposing the negligence of Constantine; we may, however, listen to an orator: "Nam quid ego alarum et cohortium castra percenseam, toto Rheni et Istri et Euphraus limite restituta." Panegyr. Vet. iv. 18.]
[Footnote 34: Ruunt omnes in sanguinem suum populi, quibus ron contigilesse Romanis, obstinataeque feritatis poenas nunc sponte persolvunt. Panegyr. Vet. iii. 16. Mamertinus illustrates the fact by the example of almost all the nations in the world.]
Notwithstanding the policy of Diocletian, it was impossible to maintain an equal and undisturbed tranquillity during a reign of twenty years, and along a frontier of many hundred miles. Sometimes the barbarians suspended their domestic animosities, and the relaxed vigilance of the garrisons sometimes gave a passage to their strength or dexterity. Whenever the provinces were invaded, Diocletian conducted himself with that calm dignity which he always affected or possessed; reserved his presence for such occasions as were worthy of his interposition, never exposed his person or reputation to any unnecessary danger, insured his success by every means that prudence could suggest, and displayed, with ostentation, the consequences of his victory. In wars of a more difficult nature, and more doubtful event, he employed the rough valor of Maximian; and that faithful soldier was content to ascribe his own victories to the wise counsels and auspicious influence of his benefactor. But after the adoption of the two Caesars, the emperors themselves, retiring to a less laborious scene of action, devolved on their adopted sons the defence of the Danube and of the Rhine. The vigilant Galerius was never reduced to the necessity of vanquishing an army of barbarians on the Roman territory.  The brave and active Contsantius delivered Gaul from a very furious inroad of the Alemanni; and his victories of Langres and Vindonissa appear to have been actions of considerable danger and merit. As he traversed the open country with a feeble guard, he was encompassed on a sudden by the superior multitude of the enemy. He retreated with difficulty towards Langres; but, in the general consternation, the citizens refused to open their gates, and the wounded prince was drawn up the wall by the means of a rope. But, on the news of his distress, the Roman troops hastened from all sides to his relief, and before the evening he had satisfied his honor and revenge by the slaughter of six thousand Alemanni.  From the monuments of those times, the obscure traces of several other victories over the barbarians of Sarmatia and Germany might possibly be collected; but the tedious search would not be rewarded either with amusement or with instruction.
[Footnote 35: He complained, though not with the strictest truth, "Jam fluxisse annos quindecim in quibus, in Illyrico, ad ripam Danubii relegatus cum gentibus barbaris luctaret." Lactant. de M. P. c. 18.]
[Footnote 36: In the Greek text of Eusebius, we read six thousand, a number which I have preferred to the sixty thousand of Jerome, Orosius Eutropius, and his Greek translator Paeanius.]
The conduct which the emperor Probus had adopted in the disposal of the vanquished, was imitated by Diocletian and his associates. The captive barbarians, exchanging death for slavery, were distributed among the provincials, and assigned to those districts (in Gaul, the territories of Amiens, Beauvais, Cambray, Treves, Langres, and Troyes, are particularly specified  which had been depopulated by the calamities of war. They were usefully employed as shepherds and husbandmen, but were denied the exercise of arms, except when it was found expedient to enroll them in the military service. Nor did the emperors refuse the property of lands, with a less servile tenure, to such of the barbarians as solicited the protection of Rome. They granted a settlement to several colonies of the Carpi, the Bastarnae, and the Sarmatians; and, by a dangerous indulgence, permitted them in some measure to retain their national manners and independence.  Among the provincials, it was a subject of flattering exultation, that the barbarian, so lately an object of terror, now cultivated their lands, drove their cattle to the neighboring fair, and contributed by his labor to the public plenty. They congratulated their masters on the powerful accession of subjects and soldiers; but they forgot to observe, that multitudes of secret enemies, insolent from favor, or desperate from oppression, were introduced into the heart of the empire. 
[Footnote 37: Panegyr. Vet. vii. 21.]
[Footnote 38: There was a settlement of the Sarmatians in the neighborhood of Treves, which seems to have been deserted by those lazy barbarians. Ausonius speaks of them in his Mosella:—— "Unde iter ingrediens nemorosa per avia solum, Et nulla humani spectans vestigia cultus; ........ Arvaque Sauromatum nuper metata colonis."]
[Footnote 39: There was a town of the Carpi in the Lower Maesia. See the rhetorical exultation of Eumenius.]
While the Caesars exercised their valor on the banks of the Rhine and Danube, the presence of the emperors was required on the southern confines of the Roman world. From the Nile to Mount Atlas Africa was in arms. A confederacy of five Moorish nations issued from their deserts to invade the peaceful provinces.  Julian had assumed the purple at Carthage.  Achilleus at Alexandria, and even the Blemmyes, renewed, or rather continued, their incursions into the Upper Egypt. Scarcely any circumstances have been preserved of the exploits of Maximian in the western parts of Africa; but it appears, by the event, that the progress of his arms was rapid and decisive, that he vanquished the fiercest barbarians of Mauritania, and that he removed them from the mountains, whose inaccessible strength had inspired their inhabitants with a lawless confidence, and habituated them to a life of rapine and violence.  Diocletian, on his side, opened the campaign in Egypt by the siege of Alexandria, cut off the aqueducts which conveyed the waters of the Nile into every quarter of that immense city,  and rendering his camp impregnable to the sallies of the besieged multitude, he pushed his reiterated attacks with caution and vigor. After a siege of eight months, Alexandria, wasted by the sword and by fire, implored the clemency of the conqueror, but it experienced the full extent of his severity. Many thousands of the citizens perished in a promiscuous slaughter, and there were few obnoxious persons in Egypt who escaped a sentence either of death or at least of exile.  The fate of Busiris and of Coptos was still more melancholy than that of Alexandria: those proud cities, the former distinguished by its antiquity, the latter enriched by the passage of the Indian trade, were utterly destroyed by the arms and by the severe order of Diocletian.  The character of the Egyptian nation, insensible to kindness, but extremely susceptible of fear, could alone justify this excessive rigor. The seditions of Alexandria had often affected the tranquillity and subsistence of Rome itself. Since the usurpation of Firmus, the province of Upper Egypt, incessantly relapsing into rebellion, had embraced the alliance of the savages of Aethiopia. The number of the Blemmyes, scattered between the Island of Meroe and the Red Sea, was very inconsiderable, their disposition was unwarlike, their weapons rude and inoffensive.  Yet in the public disorders, these barbarians, whom antiquity, shocked with the deformity of their figure, had almost excluded from the human species, presumed to rank themselves among the enemies of Rome.  Such had been the unworthy allies of the Egyptians; and while the attention of the state was engaged in more serious wars, their vexations inroads might again harass the repose of the province. With a view of opposing to the Blemmyes a suitable adversary, Diocletian persuaded the Nobatae, or people of Nubia, to remove from their ancient habitations in the deserts of Libya, and resigned to them an extensive but unprofitable territory above Syene and the cataracts of the Nile, with the stipulation, that they should ever respect and guard the frontier of the empire. The treaty long subsisted; and till the establishment of Christianity introduced stricter notions of religious worship, it was annually ratified by a solemn sacrifice in the Isle of Elephantine, in which the Romans, as well as the barbarians, adored the same visible or invisible powers of the universe. 
[Footnote 40: Scaliger (Animadvers. ad Euseb. p. 243) decides, in his usual manner, that the Quinque gentiani, or five African nations, were the five great cities, the Pentapolis of the inoffensive province of Cyrene.]
[Footnote 41: After his defeat, Julian stabbed himself with a dagger, and immediately leaped into the flames. Victor in Epitome.]
[Footnote 42: Tu ferocissimos Mauritaniae populos inaccessis montium jugis et naturali munitione fidentes, expugnasti, recepisti, transtulisti. Panegyr Vet. vi. 8.]
[Footnote 43: See the description of Alexandria, in Hirtius de Bel. Alexandrin c. 5.]
[Footnote 44: Eutrop. ix. 24. Orosius, vii. 25. John Malala in Chron. Antioch. p. 409, 410. Yet Eumenius assures us, that Egypt was pacified by the clemency of Diocletian.]
[Footnote 45: Eusebius (in Chron.) places their destruction several years sooner and at a time when Egypt itself was in a state of rebellion against the Romans.]
[Footnote 46: Strabo, l. xvii. p. 172. Pomponius Mela, l. i. c. 4. His words are curious: "Intra, si credere libet vix, homines magisque semiferi Aegipanes, et Blemmyes, et Satyri."]
[Footnote 47: Ausus sese inserere fortunae et provocare arma Romana.]
[Footnote 48: See Procopius de Bell. Persic. l. i. c. 19. Note: Compare, on the epoch of the final extirpation of the rites of Paganism from the Isle of Philae, (Elephantine,) which subsisted till the edict of Theodosius, in the sixth century, a dissertation of M. Letronne, on certain Greek inscriptions. The dissertation contains some very interesting observations on the conduct and policy of Diocletian in Egypt. Mater pour l'Hist. du Christianisme en Egypte, Nubie et Abyssinie, Paris 1817—M.]
At the same time that Diocletian chastised the past crimes of the Egyptians, he provided for their future safety and happiness by many wise regulations, which were confirmed and enforced under the succeeding reigns.  One very remarkable edict which he published, instead of being condemned as the effect of jealous tyranny, deserves to be applauded as an act of prudence and humanity. He caused a diligent inquiry to be made "for all the ancient books which treated of the admirable art of making gold and silver, and without pity, committed them to the flames; apprehensive, as we are assumed, lest the opulence of the Egyptians should inspire them with confidence to rebel against the empire."  But if Diocletian had been convinced of the reality of that valuable art, far from extinguishing the memory, he would have converted the operation of it to the benefit of the public revenue. It is much more likely, that his good sense discovered to him the folly of such magnificent pretensions, and that he was desirous of preserving the reason and fortunes of his subjects from the mischievous pursuit. It may be remarked, that these ancient books, so liberally ascribed to Pythagoras, to Solomon, or to Hermes, were the pious frauds of more recent adepts. The Greeks were inattentive either to the use or to the abuse of chemistry. In that immense register, where Pliny has deposited the discoveries, the arts, and the errors of mankind, there is not the least mention of the transmutation of metals; and the persecution of Diocletian is the first authentic event in the history of alchemy. The conquest of Egypt by the Arabs diffused that vain science over the globe. Congenial to the avarice of the human heart, it was studied in China as in Europe, with equal eagerness, and with equal success. The darkness of the middle ages insured a favorable reception to every tale of wonder, and the revival of learning gave new vigor to hope, and suggested more specious arts of deception. Philosophy, with the aid of experience, has at length banished the study of alchemy; and the present age, however desirous of riches, is content to seek them by the humbler means of commerce and industry. 
[Footnote 49: He fixed the public allowance of corn, for the people of Alexandria, at two millions of medimni; about four hundred thousand quarters. Chron. Paschal. p. 276 Procop. Hist. Arcan. c. 26.]
[Footnote 50: John Antioch, in Excerp. Valesian. p. 834. Suidas in Diocletian.]
[Footnote 51: See a short history and confutation of Alchemy, in the works of that philosophical compiler, La Mothe le Vayer, tom. i. p. 32—353.]
The reduction of Egypt was immediately followed by the Persian war. It was reserved for the reign of Diocletian to vanquish that powerful nation, and to extort a confession from the successors of Artaxerxes, of the superior majesty of the Roman empire.
We have observed, under the reign of Valerian, that Armenia was subdued by the perfidy and the arms of the Persians, and that, after the assassination of Chosroes, his son Tiridates, the infant heir of the monarchy, was saved by the fidelity of his friends, and educated under the protection of the emperors. Tiridates derived from his exile such advantages as he could never have obtained on the throne of Armenia; the early knowledge of adversity, of mankind, and of the Roman discipline. He signalized his youth by deeds of valor, and displayed a matchless dexterity, as well as strength, in every martial exercise, and even in the less honorable contests of the Olympian games.  Those qualities were more nobly exerted in the defence of his benefactor Licinius.  That officer, in the sedition which occasioned the death of Probus, was exposed to the most imminent danger, and the enraged soldiers were forcing their way into his tent, when they were checked by the single arm of the Armenian prince. The gratitude of Tiridates contributed soon afterwards to his restoration. Licinius was in every station the friend and companion of Galerius, and the merit of Galerius, long before he was raised to the dignity of Caesar, had been known and esteemed by Diocletian. In the third year of that emperor's reign Tiridates was invested with the kingdom of Armenia. The justice of the measure was not less evident than its expediency. It was time to rescue from the usurpation of the Persian monarch an important territory, which, since the reign of Nero, had been always granted under the protection of the empire to a younger branch of the house of Arsaces. 
[Footnote 52: See the education and strength of Tiridates in the Armenian history of Moses of Chorene, l. ii. c. 76. He could seize two wild bulls by the horns, and break them off with his hands.]
[Footnote 53: If we give credit to the younger Victor, who supposes that in the year 323 Licinius was only sixty years of age, he could scarcely be the same person as the patron of Tiridates; but we know from much better authority, (Euseb. Hist. Ecclesiast. l. x. c. 8,) that Licinius was at that time in the last period of old age: sixteen years before, he is represented with gray hairs, and as the contemporary of Galerius. See Lactant. c. 32. Licinius was probably born about the year 250.]
[Footnote 54: See the sixty-second and sixty-third books of Dion Cassius.]
When Tiridates appeared on the frontiers of Armenia, he was received with an unfeigned transport of joy and loyalty. During twenty-six years, the country had experienced the real and imaginary hardships of a foreign yoke. The Persian monarchs adorned their new conquest with magnificent buildings; but those monuments had been erected at the expense of the people, and were abhorred as badges of slavery. The apprehension of a revolt had inspired the most rigorous precautions: oppression had been aggravated by insult, and the consciousness of the public hatred had been productive of every measure that could render it still more implacable. We have already remarked the intolerant spirit of the Magian religion. The statues of the deified kings of Armenia, and the sacred images of the sun and moon, were broke in pieces by the zeal of the conqueror; and the perpetual fire of Ormuzd was kindled and preserved upon an altar erected on the summit of Mount Bagavan.  It was natural, that a people exasperated by so many injuries, should arm with zeal in the cause of their independence, their religion, and their hereditary sovereign. The torrent bore down every obstacle, and the Persian garrisons retreated before its fury. The nobles of Armenia flew to the standard of Tiridates, all alleging their past merit, offering their future service, and soliciting from the new king those honors and rewards from which they had been excluded with disdain under the foreign government.  The command of the army was bestowed on Artavasdes, whose father had saved the infancy of Tiridates, and whose family had been massacred for that generous action. The brother of Artavasdes obtained the government of a province. One of the first military dignities was conferred on the satrap Otas, a man of singular temperance and fortitude, who presented to the king his sister  and a considerable treasure, both of which, in a sequestered fortress, Otas had preserved from violation. Among the Armenian nobles appeared an ally, whose fortunes are too remarkable to pass unnoticed. His name was Mamgo,  his origin was Scythian, and the horde which acknowledge his authority had encamped a very few years before on the skirts of the Chinese empire,  which at that time extended as far as the neighborhood of Sogdiana.  Having incurred the displeasure of his master, Mamgo, with his followers, retired to the banks of the Oxus, and implored the protection of Sapor. The emperor of China claimed the fugitive, and alleged the rights of sovereignty. The Persian monarch pleaded the laws of hospitality, and with some difficulty avoided a war, by the promise that he would banish Mamgo to the uttermost parts of the West, a punishment, as he described it, not less dreadful than death itself. Armenia was chosen for the place of exile, and a large district was assigned to the Scythian horde, on which they might feed their flocks and herds, and remove their encampment from one place to another, according to the different seasons of the year.
They were employed to repel the invasion of Tiridates; but their leader, after weighing the obligations and injuries which he had received from the Persian monarch, resolved to abandon his party.
The Armenian prince, who was well acquainted with this merit as well as power of Mamgo, treated him with distinguished respect; and, by admitting him into his confidence, acquired a brave and faithful servant, who contributed very effectually to his restoration. 
[Footnote 55: Moses of Chorene. Hist. Armen. l. ii. c. 74. The statues had been erected by Valarsaces, who reigned in Armenia about 130 years before Christ, and was the first king of the family of Arsaces, (see Moses, Hist. Armen. l. ii. 2, 3.) The deification of the Arsacides is mentioned by Justin, (xli. 5,) and by Ammianus Marcellinus, (xxiii. 6.)]
[Footnote 56: The Armenian nobility was numerous and powerful. Moses mentions many families which were distinguished under the reign of Valarsaces, (l. ii. 7,) and which still subsisted in his own time, about the middle of the fifth century. See the preface of his Editors.]
[Footnote 57: She was named Chosroiduchta, and had not the os patulum like other women. (Hist. Armen. l. ii. c. 79.) I do not understand the expression. * Note: Os patulum signifies merely a large and widely opening mouth. Ovid (Metam. xv. 513) says, speaking of the monster who attacked Hippolytus, patulo partem maris evomit ore. Probably a wide mouth was a common defect among the Armenian women.—G.]
[Footnote 571: Mamgo (according to M. St. Martin, note to Le Beau. ii. 213) belonged to the imperial race of Hon, who had filled the throne of China for four hundred years. Dethroned by the usurping race of Wei, Mamgo found a hospitable reception in Persia in the reign of Ardeschir. The emperor of china having demanded the surrender of the fugitive and his partisans, Sapor, then king, threatened with war both by Rome and China, counselled Mamgo to retire into Armenia. "I have expelled him from my dominions, (he answered the Chinese ambassador;) I have banished him to the extremity of the earth, where the sun sets; I have dismissed him to certain death." Compare Mem. sur l'Armenie, ii. 25.—M.]
[Footnote 58: In the Armenian history, (l. ii. 78,) as well as in the Geography, (p. 367,) China is called Zenia, or Zenastan. It is characterized by the production of silk, by the opulence of the natives, and by their love of peace, above all the other nations of the earth. * Note: See St. Martin, Mem. sur l'Armenie, i. 304.]
[Footnote 59: Vou-ti, the first emperor of the seventh dynasty, who then reigned in China, had political transactions with Fergana, a province of Sogdiana, and is said to have received a Roman embassy, (Histoire des Huns, tom. i. p. 38.) In those ages the Chinese kept a garrison at Kashgar, and one of their generals, about the time of Trajan, marched as far as the Caspian Sea. With regard to the intercourse between China and the Western countries, a curious memoir of M. de Guignes may be consulted, in the Academie des Inscriptions, tom. xxii. p. 355. * Note: The Chinese Annals mention, under the ninth year of Yan-hi, which corresponds with the year 166 J. C., an embassy which arrived from Tathsin, and was sent by a prince called An-thun, who can be no other than Marcus Aurelius Antoninus, who then ruled over the Romans. St. Martin, Mem. sur l'Armaenic. ii. 30. See also Klaproth, Tableaux Historiques de l'Asie, p. 69. The embassy came by Jy-nan, Tonquin.—M.]
[Footnote 60: See Hist. Armen. l. ii. c. 81.]
For a while, fortune appeared to favor the enterprising valor of Tiridates. He not only expelled the enemies of his family and country from the whole extent of Armenia, but in the prosecution of his revenge he carried his arms, or at least his incursions, into the heart of Assyria. The historian, who has preserved the name of Tiridates from oblivion, celebrates, with a degree of national enthusiasm, his personal prowess: and, in the true spirit of eastern romance, describes the giants and the elephants that fell beneath his invincible arm. It is from other information that we discover the distracted state of the Persian monarchy, to which the king of Armenia was indebted for some part of his advantages. The throne was disputed by the ambition of contending brothers; and Hormuz, after exerting without success the strength of his own party, had recourse to the dangerous assistance of the barbarians who inhabited the banks of the Caspian Sea.  The civil war was, however, soon terminated, either by a victor or by a reconciliation; and Narses, who was universally acknowledged as king of Persia, directed his whole force against the foreign enemy. The contest then became too unequal; nor was the valor of the hero able to withstand the power of the monarch, Tiridates, a second time expelled from the throne of Armenia, once more took refuge in the court of the emperors.  Narses soon reestablished his authority over the revolted province; and loudly complaining of the protection afforded by the Romans to rebels and fugitives, aspired to the conquest of the East. 
[Footnote 61: Ipsos Persas ipsumque Regem ascitis Saccis, et Russis, et Gellis, petit frater Ormies. Panegyric. Vet. iii. 1. The Saccae were a nation of wandering Scythians, who encamped towards the sources of the Oxus and the Jaxartes. The Gelli where the inhabitants of Ghilan, along the Caspian Sea, and who so long, under the name of Dilemines, infested the Persian monarchy. See d'Herbelot, Bibliotheque]
[Footnote 611: M St. Martin represents this differently. Le roi de Perse * * * profits d'un voyage que Tiridate avoit fait a Rome pour attaquer ce royaume. This reads like the evasion of the national historians to disguise the fact discreditable to their hero. See Mem. sur l'Armenie, i. 304.—M.]
[Footnote 62: Moses of Chorene takes no notice of this second revolution, which I have been obliged to collect from a passage of Ammianus Marcellinus, (l. xxiii. c. 5.) Lactantius speaks of the ambition of Narses: "Concitatus domesticis exemplis avi sui Saporis ad occupandum orientem magnis copiis inhiabat." De Mort. Persecut. c. 9.]
Neither prudence nor honor could permit the emperors to forsake the cause of the Armenian king, and it was resolved to exert the force of the empire in the Persian war. Diocletian, with the calm dignity which he constantly assumed, fixed his own station in the city of Antioch, from whence he prepared and directed the military operations.  The conduct of the legions was intrusted to the intrepid valor of Galerius, who, for that important purpose, was removed from the banks of the Danube to those of the Euphrates. The armies soon encountered each other in the plains of Mesopotamia, and two battles were fought with various and doubtful success; but the third engagement was of a more decisive nature; and the Roman army received a total overthrow, which is attributed to the rashness of Galerius, who, with an inconsiderable body of troops, attacked the innumerable host of the Persians.  But the consideration of the country that was the scene of action, may suggest another reason for his defeat. The same ground on which Galerius was vanquished, had been rendered memorable by the death of Crassus, and the slaughter of ten legions. It was a plain of more than sixty miles, which extended from the hills of Carrhae to the Euphrates; a smooth and barren surface of sandy desert, without a hillock, without a tree, and without a spring of fresh water.  The steady infantry of the Romans, fainting with heat and thirst, could neither hope for victory if they preserved their ranks, nor break their ranks without exposing themselves to the most imminent danger. In this situation they were gradually encompassed by the superior numbers, harassed by the rapid evolutions, and destroyed by the arrows of the barbarian cavalry.
The king of Armenia had signalized his valor in the battle, and acquired personal glory by the public misfortune. He was pursued as far as the Euphrates; his horse was wounded, and it appeared impossible for him to escape the victorious enemy. In this extremity Tiridates embraced the only refuge which appeared before him: he dismounted and plunged into the stream. His armor was heavy, the river very deep, and at those parts at least half a mile in breadth;  yet such was his strength and dexterity, that he reached in safety the opposite bank.  With regard to the Roman general, we are ignorant of the circumstances of his escape; but when he returned to Antioch, Diocletian received him, not with the tenderness of a friend and colleague, but with the indignation of an offended sovereign. The haughtiest of men, clothed in his purple, but humbled by the sense of his fault and misfortune, was obliged to follow the emperor's chariot above a mile on foot, and to exhibit, before the whole court, the spectacle of his disgrace. 
[Footnote 63: We may readily believe, that Lactantius ascribes to cowardice the conduct of Diocletian. Julian, in his oration, says, that he remained with all the forces of the empire; a very hyperbolical expression.]
[Footnote 64: Our five abbreviators, Eutropius, Festus, the two Victors, and Orosius, all relate the last and great battle; but Orosius is the only one who speaks of the two former.]
[Footnote 65: The nature of the country is finely described by Plutarch, in the life of Crassus; and by Xenophon, in the first book of the Anabasis]
[Footnote 66: See Foster's Dissertation in the second volume of the translation of the Anabasis by Spelman; which I will venture to recommend as one of the best versions extant.]
[Footnote 67: Hist. Armen. l. ii. c. 76. I have transferred this exploit of Tiridates from an imaginary defeat to the real one of Galerius.]
[Footnote 68: Ammian. Marcellin. l. xiv. The mile, in the hands of Eutropoius, (ix. 24,) of Festus (c. 25,) and of Orosius, (vii 25), easily increased to several miles]
As soon as Diocletian had indulged his private resentment, and asserted the majesty of supreme power, he yielded to the submissive entreaties of the Caesar, and permitted him to retrieve his own honor, as well as that of the Roman arms. In the room of the unwarlike troops of Asia, which had most probably served in the first expedition, a second army was drawn from the veterans and new levies of the Illyrian frontier, and a considerable body of Gothic auxiliaries were taken into the Imperial pay.  At the head of a chosen army of twenty-five thousand men, Galerius again passed the Euphrates; but, instead of exposing his legions in the open plains of Mesopotamia he advanced through the mountains of Armenia, where he found the inhabitants devoted to his cause, and the country as favorable to the operations of infantry as it was inconvenient for the motions of cavalry.  Adversity had confirmed the Roman discipline, while the barbarians, elated by success, were become so negligent and remiss, that in the moment when they least expected it, they were surprised by the active conduct of Galerius, who, attended only by two horsemen, had with his own eyes secretly examined the state and position of their camp. A surprise, especially in the night time, was for the most part fatal to a Persian army. "Their horses were tied, and generally shackled, to prevent their running away; and if an alarm happened, a Persian had his housing to fix, his horse to bridle, and his corselet to put on, before he could mount."  On this occasion, the impetuous attack of Galerius spread disorder and dismay over the camp of the barbarians. A slight resistance was followed by a dreadful carnage, and, in the general confusion, the wounded monarch (for Narses commanded his armies in person) fled towards the deserts of Media. His sumptuous tents, and those of his satraps, afforded an immense booty to the conqueror; and an incident is mentioned, which proves the rustic but martial ignorance of the legions in the elegant superfluities of life. A bag of shining leather, filled with pearls, fell into the hands of a private soldier; he carefully preserved the bag, but he threw away its contents, judging that whatever was of no use could not possibly be of any value.  The principal loss of Narses was of a much more affecting nature. Several of his wives, his sisters, and children, who had attended the army, were made captives in the defeat. But though the character of Galerius had in general very little affinity with that of Alexander, he imitated, after his victory, the amiable behavior of the Macedonian towards the family of Darius. The wives and children of Narses were protected from violence and rapine, conveyed to a place of safety, and treated with every mark of respect and tenderness, that was due from a generous enemy to their age, their sex, and their royal dignity. 
[Footnote 69: Aurelius Victor. Jornandes de Rebus Geticis, c. 21.]
[Footnote 70: Aurelius Victor says, "Per Armeniam in hostes contendit, quae fermo sola, seu facilior vincendi via est." He followed the conduct of Trajan, and the idea of Julius Caesar.]
[Footnote 71: Xenophon's Anabasis, l. iii. For that reason the Persian cavalry encamped sixty stadia from the enemy.]
[Footnote 72: The story is told by Ammianus, l. xxii. Instead of saccum, some read scutum.]
[Footnote 73: The Persians confessed the Roman superiority in morals as well as in arms. Eutrop. ix. 24. But this respect and gratitude of enemies is very seldom to be found in their own accounts.]
Chapter XIII: Reign Of Diocletian And This Three Associates.—Part III.
While the East anxiously expected the decision of this great contest, the emperor Diocletian, having assembled in Syria a strong army of observation, displayed from a distance the resources of the Roman power, and reserved himself for any future emergency of the war. On the intelligence of the victory he condescended to advance towards the frontier, with a view of moderating, by his presence and counsels, the pride of Galerius. The interview of the Roman princes at Nisibis was accompanied with every expression of respect on one side, and of esteem on the other. It was in that city that they soon afterwards gave audience to the ambassador of the Great King.  The power, or at least the spirit, of Narses, had been broken by his last defeat; and he considered an immediate peace as the only means that could stop the progress of the Roman arms. He despatched Apharban, a servant who possessed his favor and confidence, with a commission to negotiate a treaty, or rather to receive whatever conditions the conqueror should impose. Apharban opened the conference by expressing his master's gratitude for the generous treatment of his family, and by soliciting the liberty of those illustrious captives. He celebrated the valor of Galerius, without degrading the reputation of Narses, and thought it no dishonor to confess the superiority of the victorious Caesar, over a monarch who had surpassed in glory all the princes of his race. Notwithstanding the justice of the Persian cause, he was empowered to submit the present differences to the decision of the emperors themselves; convinced as he was, that, in the midst of prosperity, they would not be unmindful of the vicissitudes of fortune. Apharban concluded his discourse in the style of eastern allegory, by observing that the Roman and Persian monarchies were the two eyes of the world, which would remain imperfect and mutilated if either of them should be put out.