In those days slavery was common throughout all the known world, and, although the Gospel had wrought a great improvement in the treatment of slaves, by making the masters feel that they and their slaves were brethren in Christ, it yet had not forbidden slavery. But there was a feeling of pity for those who fell into this sad condition by the chances of war or otherwise. It was a common act of charity for good Christians to redeem captives and to set them at liberty. This, indeed, was thought so holy a work, and so agreeable to the words of Scripture--"I will have mercy, and not sacrifice" (_Hos._ vi. 6; _St. Matt._ ix. 13), that bishops often broke up and sold even the consecrated plate of their churches in order that they might get the means of ransoming captives whom they heard of. And, although slavery was still allowed by the laws of Christian kingdoms, those laws took care that Christian slaves should not be under Jews, or masters of any other than their own religion. Gregory, then, while he was yet a monk, went one day into the market at Rome, just after the arrival of some merchants with a large cargo of slaves for sale. Some of these poor creatures, perhaps, had been taken in war; others had probably been sold by their own parents for the sake of the price which they fetched; for we are told that this shocking practice was not uncommon among some of the ruder nations. As Gregory looked at them, his eyes fell on some boys with whose appearance he was greatly struck. Their skin was fair, unlike the dark complexions of the Italians and other southern nations whom he had been used to see. Their features were beautiful, and they had long light flowing hair. He asked the merchants from what land these boys had been brought. "From Britain," they said; and they told him that the bright complexion which he admired so much was common among the people of that island. Perhaps Gregory had never thought of Britain before. It was nearly two hundred years since the Roman troops had been withdrawn from it, and its inhabitants had been left to themselves. And since that time the pagan Saxons had overrun it; the Romans had lost the countries which lay between them and it; and Britain had quite disappeared from their knowledge. Gregory, therefore, was obliged to ask whether the people were Christians or heathens, and he was told that they were still heathens. The good monk sighed deeply. "Alas, and woe!" said he, "that people with such faces of light should belong to the author of darkness, and that so goodly an outward favour should be void of inward grace." He asked what was the name of their nation, and was told that they were _Angles_. "It is well," he said, "for they have _angels'_ faces, and such as they ought to be joint-heirs with the angels in heaven.--What is the name of the province from which they come?" He was told that it was Deira (a Saxon kingdom, which stretched along the eastern side of Britain, from the Humber to the Tyne).