About the middle of the eight century, Constantine, surnamed Copronymus by the worshippers of images, had made an expedition into Armenia, and found, in the cities of Melitene and Theodosiopolis, a great number of Paulicians, his kindred heretics. As a favor, or punishment, he transplanted them from the banks of the Euphrates to Constantinople and Thrace; and by this emigration their doctrine was introduced and diffused in Europe. If the sectaries of the metropolis were soon mingled with the promiscuous mass, those of the country struck a deep root in a foreign soil. The Paulicians of Thrace resisted the storms of persecution, maintained a secret correspondence with their Armenian brethren, and gave aid and comfort to their preachers, who solicited, not without success, the infant faith of the Bulgarians. In the tenth century, they were restored and multiplied by a more powerful colony, which John Zimisces transported from the Chalybian hills to the valleys of Mount HÊmus. The Oriental clergy who would have preferred the destruction, impatiently sighed for the absence, of the ManichÊans: the warlike emperor had felt and esteemed their valor: their attachment to the Saracens was pregnant with mischief; but, on the side of the Danube, against the Barbarians of Scythia, their service might be useful, and their loss would be desirable. Their exile in a distant land was softened by a free toleration: the Paulicians held the city of Philippopolis and the keys of Thrace; the Catholics were their subjects; the Jacobite emigrants their associates: they occupied a line of villages and castles in Macedonia and Epirus; and many native Bulgarians were associated to the communion of arms and heresy. As long as they were awed by power and treated with moderation, their voluntary bands were distinguished in the armies of the empire; and the courage of these _dogs_, ever greedy of war, ever thirsty of human blood, is noticed with astonishment, and almost with reproach, by the pusillanimous Greeks. The same spirit rendered them arrogant and contumacious: they were easily provoked by caprice or injury; and their privileges were often violated by the faithless bigotry of the government and clergy. In the midst of the Norman war, two thousand five hundred ManichÊans deserted the standard of Alexius Comnenus, and retired to their native homes. He dissembled till the moment of revenge; invited the chiefs to a friendly conference; and punished the innocent and guilty by imprisonment, confiscation, and baptism. In an interval of peace, the emperor undertook the pious office of reconciling them to the church and state: his winter quarters were fixed at Philippopolis; and the thirteenth apostle, as he is styled by his pious daughter, consumed whole days and nights in theological controversy. His arguments were fortified, their obstinacy was melted, by the honors and rewards which he bestowed on the most eminent proselytes; and a new city, surrounded with gardens,