Little by little, probably, as time passed, this Easter scene was further enlarged, in part by additions from the closing incidents of the Savior's life. A similar treatment, too, was being given to the Christmas scene, still more humanly beautiful, of his birth in the manger, and occasionally the two scenes might be taken from their regular places in the service, combined, and presented at any season of the year. Other Biblical scenes, as well, came to be enacted, and, further, there were added stories from Christian tradition, such as that of Antichrist, and, on their particular days, the lives of Christian saints. Thus far these compositions are called Liturgical Plays, because they formed, in general, a part of the church service (liturgy). But as some of them were united into extended groups and as the interest of the congregation deepened, the churches began to seem too small and inconvenient, the excited audiences forgot the proper reverence, and the performances were transferred to the churchyard, and then, when the gravestones proved troublesome, to the market place, the village-green, or any convenient field. By this time the people had ceased to be patient with the unintelligible Latin, and it was replaced at first, perhaps, and in part, by French, but finally by English; though probably verse was always retained as more appropriate than prose to the sacred subjects. Then, the religious spirit yielding inevitably in part to that of merrymaking, minstrels and mountebanks began to flock to the celebrations; and regular fairs, even, grew up about them. Gradually, too, the priests lost their hold even on the plays themselves; skilful actors from among the laymen began to take many of the parts; and at last in some towns the trade-guilds, or unions of the various handicrafts, which had secured control of the town governments, assumed entire charge. These changes, very slowly creeping in, one by one, had come about in most places by the beginning of the fourteenth century. In 1311 a new impetus was given to the whole ceremony by the establishment of the late spring festival of Corpus Christi, a celebration of the doctrine of transubstantiation. On this occasion, or sometimes on some other festival, it became customary for the guilds to present an extended series of the plays, a series which together contained the essential substance of the Christian story, and therefore of the Christian faith. The Church generally still encouraged attendance, and not only did all the townspeople join wholeheartedly, but from all the country round the peasants flocked in. On one occasion the Pope promised the remission of a thousand days of purgatory to all persons who should be present at the Chester plays, and to this exemption the bishop of Chester added sixty days more.