The festival of St John’s birth does not appear indeed in the Calendars of Philocalus and Polemius Silvius, although it is found in the most ancient calendar of the African Church, and in the list of festivals drawn up by Perpetuus of Tours. Among the sermons of St Peter Chrysologus and Maximus of Turin there are also to be found many allusions to it. It was numbered, by the Council of Agde in 506, among the chief feasts on which all the faithful must attend divine service in their parish churches and not in private oratories.[472] In the Middle Ages servile work was proscribed on it,[473] and until our own times it continued universally to rank as a high festival, but at the present time it is kept as such in only a few countries, as we have observed on page 35. The festival of the Baptist’s conception was celebrated, especially in the East, and appears in the Calendars of Calcasendi and of the Syrians, also in the Neapolitan Calendars, and in that of Silos as well as in the Mozarabic Calendar, in the Calendar of Bede, in the Greek calendars, and in both menologies, _i.e._ that of Constantinople and that of Basil. Its introduction[474] at an early date is due to the circumstance that St John’s conception was announced by the angel, and also to the supposition, which appears as early as St Augustine, that by the meeting of his mother with Mary he was already purified from original sin before his birth. The 29th August was kept as the commemoration of his death at an early date, both in Africa and in the East. The collection of St Augustine’s sermons contains two sermons for this festival (307 and 308), and it has its place among the festivals in the list of Perpetuus. The same date is given in the Coptic Calendar in Selden, in the Syrian, Neapolitan, and Mozarabic. As regards Rome, it had not yet made its way into the Leonine sacramentary, though it is found in the _Gelasianum_. In addition, a so-called _synaxis_ of St John the Baptist is marked in the two Greek menologies. This is an instance of a peculiar custom among the Greeks, according to which, after certain chief feasts of our Lord and our Lady, there is held a second festival, or _synaxis_, on the following day, in honour of the personages who had taken part in the event commemorated by the feast. Thus with the feast of the 2nd February is coupled that of St Simeon, with that of the Nativity of our Lady, the feast of Joachim and Anna, and here, after Epiphany, the day of Christ’s baptism, we have the feast of St John the Baptist, on the 7th January.[475] The cultus of St John the Baptist received a great extension throughout the whole Church in the fourth and fifth centuries, owing to the discovery of his relics. The records of the Church contain much information concerning both the discovery and the translation of these relics, though they give rise to insoluble difficulties.