During his visit to the United States, Pope Benedict XVI will address the United Nations General Assembly. He will also celebrate the creation of the first U.S. archdiocese and the bicentennials of four other dioceses.
Baltimore was established as the first diocese in the United States of America in 1789 and John Carroll was named as the first bishop. Due to the rapid growth of the United States, in both area and population, the Holy See established four new dioceses in 1808: New York, Philadelphia, Boston, and Louisville (established as Bardstown and moved to Louisville in 1841). At the same time, the Diocese of Baltimore was made an archdiocese and Bishop John Carroll became the Archbishop.
Over the years, as the population grew and dispersed, the dioceses of New York, Philadelphia, Boston and Louisville were made archdioceses and many other dioceses were carved out of their former territory.
The coats of arms of all these archdioceses will be displayed during the papal Mass at Yankee Stadium on April 20.