In this sweeping introduction to O’Neill’s work as an American dramatist, Dr. White argues the relevance and even necessity of understanding literature, history, and Catholicism in order to appreciate the significance of O’Neill’s play. Explaining that O’Neill was the creator of a genuine American drama, White also suggests that he could not have done so without his Catholicism, nor, the doctor provocatively maintains, without losing it. This introduction to O’Neill is consequently a tour de force review of the history of the interaction between Americanism, Modernism, and Catholicism on the cultural, literary, and artistic battlefields of the beleaguered nineteenth and twentieth centuries.