On the summit of the hill which slopes on the south to the Thames, and more steeply on the west to the rapid stream of the Fleet, has for many centuries stood a church dedicated to the great Apostle of the Gentiles. The ancient statute-book of St. Paul's Cathedral states that Lucius, king of Greater Britain, in the year 185 was converted by the emissaries of the Pope, who founded three metropolitical sees, the first of which was London. This legendary foundation of the See of London has been associated by some writers with the Cathedral Church of St. Paul, and by others with the Church of St. Peter on Cornhill. But King Lucius has long ago been dismissed into the region of myth. Whilst, however, it is unknown how London first received Christianity, the date can be pretty closely fixed. "There can be no doubt," says Dean Milman, "that conquered and half-civilised Britain gradually received, during the second and third centuries, the faith of Christ. St. Helena, the mother of Constantine, probably imbibed the first fervour of those Christian feelings which wrought so powerfully in the Christianity of her age, in her native Britain." The memory of St. Helena has, from a very early period, been enshrined in London in the dedication of St. Helen's, Bishopsgate, formerly the Church of the Nunnery of St. Helen, the site having apparently been originally occupied by a Roman building. The parish church in Bishopsgate was built before 1010, and close adjoining was the Priory of the Nuns of St. Helen, founded about 1212. In the year A.D. 314, more than a century before the departure of the Romans, Restitutus, bishop of London, appears in the list of prelates who were present at the Council of Arles; and we may take it for granted that the Christian Church was duly organized at that time. But the advent of the English was the absolute and complete destruction of it for the time being. The English were entirely heathen. The end of the sixth century saw the memorable mission of St. Augustine and his band of Christian workers. Ethelbert, king of Kent, became his first convert. In the year 604, as we learn from Ralph de Diceto, the historian and Dean of St. Paul's, "Ethelbert, the King, built the Church of St. Paul, London;" and St. Augustine himself consecrated Mellitus as Bishop of the See. The Manor of Tillingham, one of those with which that King enriched the Church, still remains in the possession of the Dean and Chapter. What was the form of this first Cathedral, and whether built of wood or stone, we have no evidence to show. Maitland, in his History, says that the first Cathedral was built in the Prætorian camp of the Romans, and destroyed under Diocletian. He gives no authority for this statement, but it has no inherent improbability, for there are several examples in England of churches standing within ancient camps, _e.g._, the recently discovered church at Silchester.