The name itself points back to the antiquity of some human aggregation upon this particular spot. It is =the name of a tribe=, _not_ that of their capital. The Parisii were a Celtic people of comparatively small importance, who occupied the banks of the Seine at the period of the Roman conquest. Their town or stronghold, Lutetia, called distinctively Lutetia Parisiorum (Lutetia of the Parisii), was situated, says Cæsar, “in an island of the river Sequana”—the same which is now called the Île de la Cité. Two adjacent islands of the same alluvial type have long since coalesced to form the Île St. Louis; a fourth, the Île Louviers, is at present enclosed in the mainland of the northern bank by the modern quays. This =stockaded island village= of the Parisii was conquered by the Romans in B.C. 53. Under Roman rule, it remained at first an unimportant place, the really large towns of Gaul at that time being Arles, Nîmes, Marseilles, Bordeaux, and Lyons. In the north, Treviri was the chief Roman settlement. Towards the end of the Roman period, however, Paris seems to have increased in importance, and overflowed a little from the island to the south bank. The town owed its rapid rise, no doubt, to the two Roman bridges which here crossed the two branches of the Seine, probably on the same sites as the modern Petit-Pont and Pont Notre-Dame. The river formed its highway. Constantius Chlorus, who lived in Gaul from A.D. 292 to 306, is supposed to have built in the faubourg on the south side the palace of the Thermes, which now forms a part of the Museum of Cluny. Julian certainly inhabited that palace in 360. The town was known as Lutetia almost as long as the Roman power lasted; but after the Frankish invasion (and even in late Roman times), the name of the tribe superseded that of the ancient fortress: Lutetia became known as Paris, the stronghold of the Parisii, just in the same way as the Turones gave their name to Tours, the Ambiani to Amiens, and the Senones to Sens.