
Today (March 13) is the commemoration of Saint Leander of Seville, the bishop credited for introducing the Nicene Creed into the public Sunday liturgy.
Born into a household that was theologically Arian, Leander believed that public recitation of the Nicene Creed would cure his people's tendency toward the heretical beliefs that Christ was not eternally begotten of the Father and not of the same substance as the Father.
Saint Leander died ca. A.D. 600.





