Pope Gregory IX canonized Anthony at Spoleto on May 30, 1232, less than a year after the friar died. In June of that year the same pope issued the bull Cum dicat Dominus, announcing the canonization to the bishops of the Church and ordering them to keep his feast every June 13.
The letter that made him a teacher
Asked to preach at a priestly ordination at Forlì, he turned out to be formidable at it. Francis of Assisi sent him a short letter that opened, in Benedict XVI's rendering, "I would like you to teach the brethren theology".
He began at Bologna and became one of the first theology teachers the Franciscans had, and probably the first. Gregory IX, who had heard him preach, called him the Ark of the Testament.


