The large number of Slavonic local names in Albania, even in districts where no trace of a Slavonic population exists, bears witness to the extensive Servian and Bulgarian immigrations in the early middle ages, but the original inhabitants gradually ousted or assimilated the invaders.
A code of instructions for the guidance of church courts when engaged in cases of discipline is in general use, and bears witness to the extreme care taken not only to have things done decently and in order, but also to prevent hasty, impulsive and illogical procedure in the investigation of charges of heresy or immorality.
The colloquy of Erasmus De sacerdotiis captandis bears witness to the same state of things.
That the ascetic ideal was by no means wholly extinct is evident from the Book of Governors written by Thomas, bishop of Marga, in 840 which bears witness to a Syrian monasticism founded by one Awgin of Egyptian descent, who settled in Nisibis about 3 50, and lasting uninterruptedly until the time of Thomas, though it had long been absorbed in the great Nestorian movement that had annexed the church in Mesopotamia.
He was the first pope to date his acts according to the years of the Frankish monarchy, and a mosaic of the time in the Lateran palace represents St Peter bestowing the banners upon Charles as a token of temporal supremacy, while the coinage issued by the pope bears witness to the same idea.