We must think of Roman London as of a small stronghold on a low hill rising out of the river. It is a strongly-walled place, within which is a garrison of soldiers; outside its walls stretch gardens and villas, many of them rich and beautiful, filled with costly things. Below the fort is a long river wall or quay covered with warehouses, bales of goods, and a busy multitude of men at work. Some are slaves—perhaps all. Would you like to know what a Roman villa was like? It was in plan a small, square court, surrounded on three sides by a cloister or corridor with pillars, and behind the cloister the rooms of the house; the middle part of the court was a garden, and in front was another and a larger garden. The house was of one storey, the number and size of the rooms varying according to the size of the house. On one side were the winter divisions, on the other were the summer rooms. The former part was kept warm by means of a furnace constructed below the house, which supplied hot-air pipes running up all the walls. At the back of the house were the kitchen, stables, and sleeping quarters of the servants. Tesselated pavements, statues, pictures, carvings, hangings, pillows, and fine glass adorned the house. There was not in London the enormous wealth which enabled some of the Romans to live in palaces, but there was comparative wealth—the wealth which enables a man to procure for himself in reason all the things that he desires.

The City as it grew in prosperity was honoured by receiving the name of Augusta. It remained in Roman hands for nearly four hundred years. The Citadel, which marks the first occupation by the Romans, was probably built about A.D. 43. The Romans went away in A.D. 410. During these four centuries the people became entirely Romanised. Add to this that they became Christians. Augusta was a Christian city; the churches which stand—or stood, because three at least have been removed—along Thames Street, probably occupied the sites of older Roman churches. In this part of the City the people were thickest; in this quarter, therefore, stood the greater number of churches: the fact that they were mostly dedicated to the apostles instead of to later Saxon saints seems to show that they stood on the sites of Roman churches. It has been asked why there has never been found any heathen temple in London; the answer is that London under the Romans very early became Christian; if there had been a temple of Diana or Apollo it would have been destroyed or converted into a church. Such remains of Augusta as have been found are inconsiderable: they are nearly all in the museum of the Guildhall, where they should be visited and examined.

The history of Roman London is meagre. Seventeen years after the building of the Citadel, on the rebellion of Boadicea, the Roman general Suetonius abandoned the place, as unable to defend it. All those who remained were massacred by the insurgents. After this, so far as we know, for history is silent, there was peace in London for 200 years. Then one Carausius, an officer in command of the fleet stationed in the Channel for the suppression of piracies, assumed the title of emperor. He continued undisturbed for some years, his soldiers remaining faithful to him on account of his wealth: he established a Mint at London and struck a large amount of money there. He was murdered by one of his officers, Allectus, who called himself emperor in turn and continued to rule in Britain for three years. Then the end came for him as well. The Roman general landing with a large force marched upon London where Allectus lay. A battle fought in the south of London resulted in the overthrow and death of the usurper. His soldiers taking advantage of the confusion began to plunder and murder in the town, but were stopped and killed by the victors.

Constantine, who became emperor in 306, was then in Britain, but his name is not connected with London except by coins bearing his name.

Tradition connects the name of Helena, Constantine's mother, with London, but there is nothing to prove that she was ever in the island at all.

Late in the fourth century troubles began to fall thick upon the country. The Picts and the Scots overran the northern parts and penetrated to the very walls of London. The general Theodosius, whose son became the emperor of that name, drove them back. About this time the wall of London was built; not the wall of the Roman fort, but that of the whole City. From the year 369, when Theodosius the general landed in Britain, to the year 609 we see nothing of London except one brief glimpse of fugitives flying for their lives across London Bridge. Of this interval we shall speak in the next chapter. Meanwhile it is sufficient to say that the decay of the Roman power made it necessary to withdraw the legions from the outlying and distant portions of the Empire. Britain had to be abandoned. It was as if England were to give up Hong Kong and Singapore and the West Indies because she could no longer spare the ships and regiments to defend them. The nation which abandons her possessions is not far from downfall. Remember, when you listen to those who advocate abandonment of our colonies, the example of Rome.