Since 1970, when Church History last published a review of Pietist scholarship, there have been significant contributions to almost all areas of the field. Research on Pietism—once the distinct province of German church historians—has become increasingly international as well as interdisciplinary in scope as Germanists, musicologists, social historians, and historians of Christianity explore the influence of this movement in Europe and the New World. The yearbook Pietismus und Neuzeit, the magisterial four volume handbook Geschichte des Pietismus, and the first International Pietism Congress in 2001 all testify to the vitality of current scholarship in this field. As much recent scholarship makes clear, Pietist research can contribute significantly to how historians understand the development of Christianity in the last three hundred years.