The cult of Michael, Gabriel and Raphael began in the East. In the West, this day first marked the dedication of a fifth century church of Saint Michael in Rome. This festival of Michaelmas came to be very popular and widely celebrated in medieval Europe. Raphael and Gabriel were added to the Roman calendar in the twentieth century, and the three are now celebrated together. In the Scriptures (for example, Revelation 12:7-9, Luke 1:26-38, Tobit 3:16-25), each of the three angels is named as a messenger of God, entrusted with special divine missions on earth.
May these archangels guide us!