St. Michael, the holy archangel has ever been honored in the Christian church. To thank his adorable goodness for this benefit of his merciful providence, this festival was instituted by the Church in honor of the good angels: in which devotion she has been encouraged by several apparitions of this glorious archangel. Among others it is recorded that St. Michael, in a vision, admonished the bishop of Siponto to build a church in his honor on mount Gargano now called Monte-de-Sant-Angelo in the kingdom of Naples. This church was erected in the fifth century and to this day is a place of great devotion.