Though Christianity had long flourished in Rome, it could hardly, in its early stages, be expected to make itself greatly felt in Britain, owing to the continual troublous times caused by the invasions first by the Roman soldiery, then by the Scots and Picts from Caledonia (now called Scotland), and the Saxons, who came from the river Elbe, and the Angles, who dwelt to the north of the Saxons, in the districts now called Schleswig and Holstein. Then the Danes and Northmen landed in England in 787, and practically overran the whole kingdom. All these tribes, each in its turn, devastated the country, pillaging and destroying everything, so that there is little to marvel at the slow growth of Christianity in the island, seeing that the clergy were the first to suffer. Augustine may be said to have certainly revived Christianity and rescued the Church from utter oblivion, but it was left till the Norman Conquest to erect the wonderful architectural structures, many of which exist till this day.
The early history of Canterbury is shrouded in mystery. The discovery of Druidical remains clearly points to the practice of religious rites of the Britons prior to the Christian era. It appears also that the Romans found it as a British town of some importance. This theory, laying aside minor considerations, is strengthened by the fact that the Romans called it Durovernum, the derivation of which they borrowed from the British words "dwr" a stream, and "whern" swift, the latter of which was most appropriate to the Stour, on whose banks the city was founded. The Saxons on their arrival called the place "Cantwarabyrig." From this, no doubt, Canterbury owes the origin of its present name. Contrary to the ordinary laws of foundation, there appears to have been no one (locally) covetous of the honour of martyrdom, or possibly worthy, if martyred, of recognition by the Church.
During the Roman occupation of the city, Christianity struggled, probably kept alive by such of the soldiers who had been previously converted in Rome.
Two churches were built in the second century. One of these, in 600, was consecrated by the Bishop of Soissons, and dedicated to St. Martin, for Bertha, a daughter of Charibert, a Christian king of Paris. On her marriage with Ethelbert of Kent, the foremost king of the English, it was stipulated that her religious inclinations should be protected. Through her influence the king became converted. To encourage Christianity, and to set a good example to his subjects, Ethelbert welcomed Augustine and his forty monks, in 597, gave him his palace, which was speedily converted into a priory, and helped him to found an abbey without the city walls, and intended as a sepulture for the Archbishops.
This abbey was dedicated to St. Peter and St. Paul. As Canterbury was already recognised as the metropolis, or head of the State of Kent, in that their kings had their royal residence there, it was no difficulty for Augustine, as spiritual head, to make it also a Metropolitan See, the more so as, by the investiture of the Pope, he became the first Archbishop.