The Rule of St. Benedict was written about 530–43. Much earlier than this we find an evening Office corresponding to both that of Vespers and that of Compline. Its name varies. John Cassian calls it "Vespertina synaxis", or "Vespertina solemnitas". Benedict used the name "vespera" which has prevailed, whence the French word "vêpres" and the English vespers. The name, however, by which it was most widely known during that period was "Lucernalis" or "Lucernaria hora". It was so called because at this hour candles were lit, not only to give light, but also for symbolical purposes. The ""Peregrinatio"", the date of which is probably the 4th century, gives the liturgical order as practised at Jerusalem. The author states that this Office took place at the tenth hour (four o'clock in the evening); it is really the "Office des lumières", i.e. of the lights; it was celebrated in the Church of the Holy Sepulchre; all the lamps and torches of the church were lighted, making, as the author says, "an infinite light". In the "Antiphonary of Bangor", an Irish document of the 6th century, Vespers are called "hora duodecima", which corresponds to six o'clock in the evening, or "hora incensi", or again "ad cereum benedicendum". All these names are interesting to note. The "hora incensi" recalls the custom of burning incense at this hour, while at the same time the candles were lighted. The ceremony of the lights at Vespers was symbolic and very solemn.