The Festival of All Saints has no intimate connection with the ecclesiastical year, but is of the nature of an addition from without, and, like the saints’ days, is fixed for a special date. In the earliest ages the Church paid an external cultus to the martyrs alone, among whom she included, at an early date, St John the Baptist, but it was only in the course of centuries that other saints, not martyrs, attained to this distinction. The cultus of simple confessors, however, formed at first quite the exception, and only became general along with the introduction of canonisations. Thus in the early ages there was no Festival of All Saints, but only a commemoration of all the martyrs, the intention being that no martyr might be left unhonoured. Their number had been increased to such an extent by the Diocletian persecution, that it was no longer possible to celebrate a special commemoration of each one separately, and so many martyrs had to be passed over; thus a commemoration of all the martyrs was instituted as a matter of course. As far as we know at present, we first meet with this commemoration in the Church of Antioch, which, on the first Sunday after Pentecost, kept a commemoration of all the holy martyrs. We have some sermons of St John Chrysostom preached on this day.[686] In course of time the feast became general throughout the East, and an All Saints’ Sunday finds a place in the Eastern calendars, while the Uniats have accepted the Roman date for the feast. In the West the festival passed through the following phases. The Emperor Phocas († 4th October 610), as master of Rome and lord of Central Italy, gave the Pantheon to Boniface IV. at the pope’s request. The building had been erected by Agrippa in honour of Augustus in 27 B.C. The learned are not agreed as to whether it was originally a temple or a bath (Laconicum sudatio), but it had certainly statues of the gods in the niches which adorn its interior; however, in the seventh century it no longer served its original purpose, and its maintenance was a source of expense to the imperial treasury. The pope had the building cleansed and made into a church, which he dedicated to our Lady and all the martyrs;[687] the day of the dedication was the 13th May (609 or 610), which thus came to be observed in Rome as a commemoration of all the holy martyrs.