"Church History, Volume 2 (of 3)" by J. H. Kurtz is a historical account written in the late 19th century. This volume delves into the development and events surrounding the Germano-Romanic Church from the 10th to the 13th century, addressing significant themes such as missionary efforts, the impact of the Crusades, and the relationships between the Church and various political entities. The opening of this volume introduces the spread of Christianity across Europe and the various missionary enterprises that facilitated this process. It discusses key figures, including Viking converts who played a critical role in bringing Christianity to their homelands, as well as the political dynamics that influenced conversion efforts, such as rulers applying pressure or forming alliances. The text sets the stage for exploring how Christianity took root in regions like Scandinavia, Poland, and Hungary, and also touches on the subsequent Crusades that aimed to secure Christian dominance in the Holy Land and its broader implications for European society. (This is an automatically generated summary.)