30. Christianity in Britain.—When the Romans put down the Druids and their bloody sacrifices, they called the old Celtic gods by Roman names, but made no further alteration in religious usages. Gradually, however, Christianity spread amongst the Romans on the Continent, and merchants or soldiers who came from the Continent introduced it into Britain. Scarcely anything is known of its progress in the island. Alban is said to have been martyred at Verulamium, and Julius and Aaron at Isca Silurum. In 314 three British bishops attended a council held at Arles in Gaul. Little more than these few facts have been handed down, but there is no doubt that there was a settled Church established in the island. The Emperor Constantine acknowledged Christianity as the religion of the whole Empire. The remains of a church of this period have recently been discovered at Silchester.

31. Weakness of the Empire.—The Roman Empire in the time of Constantine had the appearance rather than the reality of strength. Its taxation was very heavy, and there was no national enthusiasm to lead men to sacrifice themselves in its defence. Roman citizens became more and more unwilling to become soldiers at all, and the Roman armies were now mostly composed of barbarians. At the same time the barbarians outside the Empire were growing stronger, as the tribes often coalesced into wide confederacies for the purpose of attacking the Empire.

32. The Picts and Scots.—The assailants of Britain on the north and the west were the Picts and Scots. The Picts were the same as the Caledonians of the time of Agricola. We do not know why they had ceased to be called Caledonians. The usual derivation of their name from the Latin Pictus, said to have been given them because they painted their bodies, is inaccurate. Opinions differ whether they were Goidels with a strong Iberian strain, or Iberians with a Goidelic admixture. They were probably Iberians, and at all events they were more savage than the Britons had been before they were influenced by Roman civilisation. The Scots, who afterwards settled in what is now known as Scotland, at that time dwelt in Ireland. Whilst the Picts, therefore, assailed the Roman province by land, and strove, not always unsuccessfully, to break through the walls which defended its northern frontier, the Scots crossed the Irish Sea in light boats to plunder and slay before armed assistance could arrive.

33. The Saxons.—The Saxons, who were no less deadly enemies of the Roman government, were as fierce and restless as the Picts and Scots, and were better equipped and better armed. At a later time they established themselves in Britain as conquerors and settlers, and became the founders of the English nation; but at first they were only known as cruel and merciless pirates. In their long flat-bottomed vessels they swooped down upon some undefended part of the coast and carried off not only the property of wealthy Romans, but even men and women to be sold in the slave-market. The provincials who escaped related with peculiar horror how the Saxons were accustomed to torture to death one out of every ten of their captives as a sacrifice to their gods.

34. Origin of the Saxons.—The Saxons were the more dangerous because it was impossible for the Romans to reach them in their homes. They were men of Teutonic race, speaking one of the languages, afterwards known as Low German, which were once spoken in the whole of North Germany. The Saxon pirates were probably drawn from the whole of the sea coast stretching from the north of the peninsula of Jutland to the mouth of the Ems, and if so, there were amongst them Jutes, whose homes were in Jutland itself; Angles, who inhabited Schleswig and Holstein; and Saxons, properly so called, who dwelt about the mouth of the Elbe and further to the west. All these peoples afterwards took part in the conquest of southern Britain, and it is not unlikely that they all shared in the original piratical attacks. Whether this was the case or not, the pirates came from creeks and inlets outside the Roman Empire, whose boundary was the Rhine, and they could therefore only be successfully repressed by a power with a good fleet, able to seek out the aggressors in their own homes and to stop the mischief at its source.