It would be outside our scope to enter into the details of the far-reaching consequences of this great event. For our present purpose it is sufficient to state that, with the empire in which it had been born and nurtured, the church was divided into two parts, which were thenceforth to develop independently, now in parallel, now in widely divergent lines.

It will be convenient to regard the first chapter as dealing with the period between the institution of Christianity and the partition of the Roman Empire; and in the present chapter to discuss the interval between the latter event and the accession of Charles the Great. We thereby divide the history into two epochs of approximately four centuries each, with characteristics sufficiently well marked to distinguish one from the other. Following Marriott, we shall name the first the primitive, the second the transitional period. We have seen that there is no evidence that vestments of any definite form were prescribed for use during the former epoch; we shall see in the present chapter how vestment-usage rapidly developed in the churches of the West till it culminated in the gorgeous enrichment of mediaeval times.

Although the differences between the vestments of the Western and the Eastern churches consist largely in matters of detail, they are sufficiently conspicuous, and their histories are sufficiently divergent, to render their independent treatment advisable. We shall therefore postpone the discussion of the latter till we have investigated the evolution and subsequent elaboration of the former.

The empire to which Honorius succeeded consisted of Italy, Spain, Gaul, and Britain. Although the evidence which is extant does not permit us to trace completely the history of vestments throughout this period, yet from scattered documents we are able to see that for the most part the development of ecclesiastical costume proceeded on the same lines throughout this vast area.

Ritual in matters of dress had rapidly been growing. Pope Celestine, who occupied the Roman See from 423 till 432, found it necessary to write a sharp letter to the Bishops of Vienne and Narbonne for 'devoting themselves rather to superstitious observances in dress than to purity of heart and faith.' Certain monks, it appears, had attained to episcopal rank, but had retained their ascetic costume. Some of Celestine's sentences are very striking in this connection; and although they refer primarily to outdoor costume, we cannot but think that, in a later age, when the regulations governing the ritual uses of vestments had been formulated, and the vestments themselves had been elaborated to their ultimate form, the force of his words would have been somewhat modified. 'By dressing in a cloak [pallium],' he says, 'and by girding themselves with a girdle, they think to fulfil the truth of Scripture, not in the spirit, but in the letter. For if these precepts were given to the end that they should be obeyed in this wise, why do they not likewise that which follows, and carry burning lights in their hands as well as their pastoral staves? We should be distinguished from the common people, or from all others, by our learning, not by our dress; by our habit of life, not by our clothing; by the purity of our minds, not by the cut of our garments. For if we begin to introduce novelties, we shall trample under foot the usage which our fathers have handed down to us, and give place to vain superstitions.'

The fullest information on the subject of vestments during this period comes from Spain, in the oft-quoted acts of the fourth council of Toledo, which sat under the presidency of St Isidore of Seville in the year 633. Of the canons which were drawn up at this council that which is of the highest importance in this inquiry is the twenty-eighth, although it is not directly connected with vestment-usage. It provides for the case of a cleric who had been unjustly degraded from his order, and ordains that such a one, if he be found innocent in a subsequent synod, 'cannot be reinstated in his former position unless he regain his lost dignities before the altar, at the hands of a bishop. If he be a bishop, he must receive the orarium,[15] ring, and staff; if a priest, the orarium and planeta; if a deacon, the orarium and alba; if a subdeacon, the paten and chalice, and similarly for the other orders—they must receive, on their restoration, whatever they received on their ordination.'[16]

On the principle which is all but universal, that the clergy of the higher orders added the insignia of the lower orders to those of their own, we are enabled by the help of this act to draw up a table of the vestments recognised in Spain, which shows at a glance the manner in which they were distributed among the different orders of clergy:

Some letters of Gregory the Great (Bishop of Rome 590-604) give us particulars relating to three other vestments not in general use throughout the church. These are the dalmatica, the mappula, and the pallium. Lastly, an anonymous MS. of uncertain date[17] enumerates the pallium, casula, manualia, vestimentum, alba, and stola as the vestments worn in the Gallican Church. It is to be regretted that none of the British authors of the period have preserved any record of contemporary vestment-usage in this country; we have, however, no reason to suppose that it differed from that of the Continent.

Let us now take each of the above vestments in order, and collect whatever information is obtainable upon their appearance and history, comparing each in turn with its supposed Roman prototype.