Today is the feast day of Our Lady of Guadalupe, patroness of the Americas--North, Central and South. The feast commemorates the day on which she imprinted her image on the tilma, or cloak, of St. Juan Diego, whose feast Catholics celebrated on December 9th. It is a beautiful story that took place in 1531, a decade after Cortez's conquest of Aztec Mexico, and just 14 years after Martin Luther's publication of his Ninety-Five Theses, the event which precipitated the Protestant Reformation in Europe. December 9, 1531 is the day on which she first appeared to Juan Diego, an Indian convert...