Robert Prevost, the Chicago-born missionary, was elected the first pope from the United States in the history of the Catholic Church.

Pope Leo XIV is the first pope who belongs to the Order of Saint Augustine, whose principles, priests say, offer a window into what type of pontiff Leo may be. Augustinians follow spiritual ideals aimed at bringing people together,

Pope Leo XIV, elected on Thursday, is the first pope from the Order of St. Augustine (OSA), also known as the Augustinians, an ancient religious order.