We are becoming very familiar with the dictum that August, 1914, marked the close of an age, and that, since the Armistice, we are living in an entirely new world. Everything is changing, and it is beyond the wit of man to forecast the resultant social, economic, political and religious order. Of course, all pursuits are affected by this prodigious shifting of the human outlook, and it seemed as if it would be appropriate to this annual meeting of the American Society of Church History if I should devote the time given to the preliminary address to an attempt to appraise briefly the influence of the Great War upon the studies to which we are devoted.