6. Most of the Roman cities were built in districts where the Britons had been strong, or where they were likely to give trouble. Carlisle and Gloucester were, for instance, =military towns=, because they were on the borders of the Roman territory. London and Winchester were =trading cities=, and they developed much in Roman times. 7. But, when the Roman power was withdrawn, there was, in those cities at any rate, a British population, which had adopted very extensively Roman customs and ideas. For a time things went on much as they had done while the Romans were here; in fact, until the struggles with the Saxons began. 8. As a matter of fact, the coming of the Saxons began a good while before the Romans actually left. Various tribes of Saxons attacked different parts of the coast. Colchester had to keep a sharp look-out for them on the east coast; and the Romans built Portchester Castle, in Hampshire, to guard the south coast. 9. Christianity had found its way to Britain during Roman times, and that helped in the work of civilizing the Britons. But we do not know very much of the early British Church. Christianity probably made more headway among the population in and near the Roman towns than in the wilder districts. The foundations of an early Christian church have been found at Silchester. =Summary.=--The Romans held Britain much as we hold India. They did not interfere with the manners and customs, or the religion, of the Britons. The Romans lived in their towns and villas, the Britons in their own settlements. Britons in and near Roman towns gradually adopted Roman ways. Verulam was the chief Roman city, and there were others at London, Winchester, Gloucester, Lincoln, Chester, Carlisle, Colchester, &c. These modern cities, though on the _sites_ of these Roman towns, have not sprung from the Roman cities. The Saxons began to give trouble before the Romans left. Christianity came in Roman times, and the remains of a church have been found at Silchester, in Hants. CHAPTER VI EARLY SAXON TIMES 1. The conquest of Britain by the Saxons took a long time--considerably over one hundred and fifty years. A great many people are born, and live their lives, and die, in such a period of time as that. It was only little by little that the various tribes of Saxons got a footing in England. They were the stronger and fiercer race, and the Britons were gradually subdued or driven into the mountainous regions by them.