In 1846, eight years before the dogma of the Immaculate Conception was solemnly defined by Pope Pius IX, the bishops of the United States declared Mary under the title of the Immaculate Conception to be the Patroness of the United States of America. Since the earliest days of the Church, Catholics have believed that Mary was preserved by God from Original Sin from the moment of her conception. This devotion has an early history in the Americas as well — when Christopher Columbus came over, his flagship was named in honor of the Immaculate Conception - Santa María de la Inmaculada Concepción. By the middle of the 19th century, the Church was really emerging as a major force in the life of America, and her bishops were gaining greater notice and respect around the world. Two prominent American prelates, Archbishop Francis Kenrick of Baltimore and Bishop John Hughes of New York, both had great devotions to Our Lady. Though they were diametrically opposed in temperament and episcopal style, both pushed for the American bishops to name the Immaculate Conception the Patroness of the United States at the Sixth Provincial Council of Baltimore in 1846. They were successful. Then both were present in Rome eight years later when Pope Pius IX declared the dogma. In fact, the American decision to name the Immaculate Conception as Patroness is believed to have been a factor in Pius IX's decision to declare the dogma. Further, Archbishop Kenrick, who was an internationally respected theologian at the time, aided Pius IX in formulating the rationale and the declaration. Since that time, many U.S. cathedrals and parish churches, plus the massive shrine in Washington, DC, have been dedicated in honor of the Immaculate Conception. O Mary, conceived without sin, pray for us!