20th-century history of the Catholic Church in the United States 20th-century history of the Catholic Church in the United States The 20th-century history of the Catholic Church in the United States was characterized by a period of continuous growth for the Church in the United States, with Catholics progressively evolving from a small minority to a large minority. In 1900 the Catholic population was 10 million, under the control of 14 Archbishops, 77 bishops, and 12,000 priests . The community had built 10,000 churches, of which two-thirds had resident pastors. Catholic schools educated nearly 1,000,000 children and youth. Catholics were heavily concentrated in the industrial and mining centers of the
Ecclesiastical history of the Catholic Church second period with the middle of the 15th century. Nor do authors perfectly agree on the turning-points which are to be inserted within the chief periods. It is true that the conversion of Constantine the Great affected the life of the Church so profoundly that the reign of this first Christian emperor is generally accepted as marking a sub-division in the first period. In the second period, especially prominent personalities usually mark the limits of the several sub-divisions, e.g. Charlemagne, Gregory VII, Boniface VIII, though this leads to the undervaluation of other important factors e. g. the Greek Schism, the