When Pope Pius VI gave you your first Bishop in the person of the American John Carroll and set him over the See of Baltimore, small and of slight importance was the Catholic population of your land. At that time, too, the condition of the United States was so perilous that its structure and its very political unity were threatened by grave crisis. Because of the long and exhausting war the public treasury was burdened with debt, industry languished and the citizenry wearied by misfortunes was split into contending parties. This ruinous and critical state of affairs was put aright by the celebrated George Washington, famed for his courage and keen intelligence. He was a close friend of the Bishop of Baltimore.
Thus the Father of His Country and the pioneer pastor of the Church in that land so dear to Us, bound together by the ties of friendship and clasping, so to speak, each the other’s hand, form a picture for their descendants, a lesson to all future generations, and a proof that reverence for the Faith of Christ is a holy and established principle of the American people, seeing that it is the foundation of morality and decency, consequently the source of prosperity and progress.
-Venerable Pope Pius XII, Sertum Laetitiae