A little-known day of Jesuit thanksgiving was celebrated on March 12 to mark the canonizations of two of the most famous Jesuits: St. Ignatius of Loyola and St. Francis Xavier. Every year on this date, each Jesuit offers a special prayer or Mass of Thanksgiving for the gift of the saints’ canonizations, which occurred on March 12, 1622 — 66 years after the death of Ignatius and 70 years after the death of Xavier. Saint Ignatius, the founder of the Society of Jesus, lived as a pilgrim for many years but spent most of his priestly life in a small room in Rome, directing the newly founded Society. Francis Xavier, one of the Society’s most well-known missionaries, lived most of his Jesuit life traveling around Asia, preaching and baptizing. Pope Gregory XV was responsible for canonizing the two Jesuits. The pope was educated by the Jesuits at the “Collegio Romano,” the university founded by Ignatius in Rome that is now known as the Gregorian University.