The book "The Formation of Christianity, Volume II" was written by T. V. Allis and is the second volume of the publication. In this book, the author examines the far-reaching consequences of early Christian events, recreating the complex relationship between the Church and secular power in medieval times. In his work, he examines how these relations have changed over the centuries, influencing the formation of the socio-cultural face of Europe. The book "The Formation of Christianity, Volume II" is an important source for understanding the history of religion and civilization in the Middle Ages.