The commemoration of the Circumcision ("when eight days were accomplished for the circumcising of the child") falls naturally on January 1, the Octave of Christmas. It is not of Roman origin, and was not observed in Rome until it had long been established in the Byzantine and Gallican Churches.{29} In Gaul, as is shown by a decree of the Council of Tours in 567, a solemn fast was held on the Circumcision and the two days following it, in order to turn away the faithful from the pagan festivities of the Kalends.{30} The feast of the Epiphany on January 6, as we have seen, is in the eastern Church a commemoration of the Baptism of Christ. In the West it has become primarily the festival of the adoration |102| of the Magi, the manifestation of Christ to the Gentiles. Still in the Roman offices many traces of the baptismal commemoration remain, and the memory of yet another manifestation of Christ's glory appears in the antiphon at "Magnificat" at the Second Vespers of the feast:-- "We keep holy a day adorned by three wonders: to-day a star led the Magi to the manger; to-day at the marriage water was made wine; to-day for our salvation Christ was pleased to be baptized of John in Jordan. Alleluia." On the Octave of the Epiphany at Matins the Baptism is the central idea, and the Gospel at Mass bears on the same subject. In Rome itself even the Blessing of the Waters, the distinctive ceremony of the eastern Epiphany rite, is performed in certain churches according to a Latin ritual.{31} At Sant' Andrea della Valle, Rome, during the Octave of the Epiphany a Solemn Mass is celebrated every morning in Latin, and afterwards, on each of the days from January 7-13, there follows a Mass according to one of the eastern rites: Greco-Slav, Armenian, Chaldean, Coptic, Greco-Ruthenian, Greco-Melchite, and Greek.{32} It is a week of great opportunities for the liturgiologist and the lover of strange ceremonial.