Since the 16th century Catholic piety has assigned entire months to special devotions. Due to the solemnity of Saint Joseph on March 19, this month is devoted to this great saint, the foster father of Christ. "It greatly behooves Christians, while honoring the Virgin Mother of God, constantly to invoke with deep piety and confidence her most chaste spouse, Saint Joseph. We have a well grounded conviction that such is the special desire of the Blessed Virgin herself." --Pope Leo XIII