The Romans laid foundations here, as they did in so many places in Europe, and then passed away. But before they disappeared there had been time for the first missionaries of the Christian faith to sow the seeds that were to grow into the Church. The legions left the city, but the faith of Rome stayed on. As early as the second century (and some say earlier still) came St. Nicaise. After him arrived St. Mellon of Cardiff, who is said to have converted the chief Pagan temple into a Christian church. St. Sever was the third "Bishop." In 400, St. Victrice had laid the foundations of the first church on the site of the Cathedral, and tradition puts the beginning of what became St. Ouen as one year earlier. Strangely enough there remains a record of the ecclesiastical architecture of these early days that is of the highest interest, for it is the oldest building of its kind to be found north of the Alps.

To reach it you must pass out of the town to the north-west, going by the Rue Cauchoise where it starts from the Place du Vieux Marché towards the hill of St. Gervais. All Roman burials took place outside their walls, and the tombs generally lined the great roads that led out of the towns. There is no doubt that many such monuments stood on either hand of the road that you must follow now, beyond the Place Cauchoise and into the Rue Saint Gervais. Go straight on up the hill and at the turn into the Rue Chasselièvre, upon the left, you will see an uncompromisingly new Norman church standing alone upon some high ground. This is a modern building on the site of the old Priory of St. Gervais, to which William the Conqueror was carried in his last illness, when he could no longer bear the noise and traffic of the town. At the west end, on the outside wall of this third and newest church, is placed a tablet that records his death. Of the second church you can trace the apse, with its Romanesque pillars and carved capitals of birds and leaves, beneath the choir at the east end of the third one.

Look lower still. Beneath the second choir is a still older window that barely rises high enough above the soil to catch the light at all. That is the window of the oldest crypt in France. Down thirty steps from the inner pavement of the new church you can descend with lighted candles to see the first building in which the Church of Rouen met. The only accurate drawing that has ever been published of it was made for these chapters, and it is worth while taxing your patience with rather more detail than usual in describing a subterranean chamber that has no parallel save in the Catacombs of Rome. It was no doubt after his visit to the Holy City in 404 that St. Victrice built this shrine for the safe-keeping of the first relics of his church in a pagan land. The friend of St. Martin of Tours, and of St. Ambrose at Milan, St. Victrice had probably obtained from them the sacred fragments which were to be so carefully preserved for the strengthening of the faith among the infidels. But the little community of Christians at Rouen had its own relics that needed safe disposal too. For in this crypt on the left hand as you enter is the tomb of St. Mellon who died in 311, to whom a church is dedicated that still exists in Monmouthshire, and on the right lies St. Avitien who died in 325. The saint to whose name and memory the crypt was dedicated lies buried beneath the high altar of the Church of St. Ambrose at Milan. The body of St. Victrice, its builder, after lying in this same vault for nearly four centuries after his death, was transferred elsewhere.

The cold and gloomy little pit is eleven metres forty long, by five metres forty broad, and five metres thirty high, and in the recessed arches above the tombs may still be traced the thin red bricks of the Roman builders and their strong cement between. In the circular apse opposite the tiny square-headed entrance is the high window, set in the east, that we saw from the outside, and in the wall on each side are two square recesses in which the sacred vessels were locked up. The altar on its raised platform stands upon two rude upright stones, and is marked with five small crosses incised upon its upper surface. Behind it, on the rounded wall, are faint traces of carving and of fresco. All round the walls, except at the altar and the entrance, runs a low stone seat after the true type of the Christian Catacomb. A flat projecting rib of stone divides the barrel roof of the nave from the circular vault of the apse which slopes upwards to the rounded summit of the tiny window. A few skulls lie in a shadowed hollow near the altar, but the State has fortunately put a stop to any further grubbing in the floor for corpses that should never have been disturbed.

There is an absolute and elemental simplicity in this tiny crypt, with its stone bench and tombs of stone, that appeals far more strongly to the imagination than any bespangled ecclesiasticism above it. This is the true service of God and of His poor. The cold austerity of a faith that stood in no need of external attractiveness lays hold upon the senses as the reticent syllables of that first gospel, spelt out from its original sentences, must have gripped the hearts of those who heard it first. The Latin phrases of a long drawn litany, set to complicated tunes, rolled overhead with an emptiness of barren sound, among the clouds of incense and the glitter of the painted walls and all the service of "the clergyman for his rich."

More beautiful places of worship we shall see in many parts of Rouen. But in all France there is nothing more sincere than the small crypt of St. Gervais.

So the only remnant that is left of "Roman" Rouen is not Roman at all, but a type of that strong, naïve, and sincere Christianity which invigorated the Gothic captains who overthrew Rome. It is but fitting that there should be so little left. For the Romans were not so much a nation as an empire. They were not so much a people, as the embodiment of a power. When their work of spreading law and order, of diffusing Greek imagination through the channels of their strength was over, they split asunder at the vigorous touch of the truth that came against them. They left no personal traces in a town so far removed as Rouen from the centres of their civilisation.

It was the same in London, which was still farther off. For if you believe that any "Roman" wall was built round Augusta before 400 a.d., there is little left of it to point to now, save at that south-eastern corner on which the Norman Conqueror built his tower, at the New Post Office buildings in St. Martin's le Grand, and in the churchyard of St. Giles's, Cripplegate. In the British Museum and at Guildhall are some scanty relics of domestic life, some fragments of mosaic, shreds of pavement, and the like.

At Rouen it is the same. The legions left the stamped impression of their armoured feet, impersonal and strong, a hallmark as it were, to guarantee the local strength and value of the first Rothomagus. But it was the Christian worshippers who left the only building that remains of those first centuries, to testify to what some men and women in that early time could really feel and think and do.