Archbishop Carroll is a prominent figure in the history of the Catholic Church in the United States. He was the first bishop of the Archdiocese of Baltimore, appointed in 1790, and played a crucial role in establishing the Catholic Church's presence in the nation. His leadership helped to organize the church's structure and expand its influence during a time of significant growth and change. In addition to his ecclesiastical duties, Archbishop Carroll was an advocate for education and social justice. He founded several schools and supported the establishment of the Catholic University of America. His commitment to education and community service laid the groundwork for future Catholic initiatives in the U.S.