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
Catholic Church in the 20th century into the 20th century, Catholics—even if no longer resorting to persecution—still defined Protestants as heretics. Thus, Hilaire Belloc - in his time one of the most conspicuous speakers for Catholicism in Britain - was outspoken about the "Protestant heresy". He also defined Islam as "A Christian heresy", on the grounds that Muslims accept many of the tenets of Christianity but deny the godhood of Jesus (see Hilaire Belloc#On Islam). In the second half of the century - and especially in the wake of Vatican II - the Catholic Church, in the spirit of ecumenism, no longer referred to Protestantism as