which the beginning church was nourished. It then goes on to show how important it is for the church to establish order and unity amidst threats of persecution and heresy. The emergence of apologists helps not only the expansion of the church but also the construction of Christian doctrine. At the same time, controversies abound as the church encountered many different cultural and sociological challenges while trying out in reaction a variety of ideas. With chapter seven, the relation between church and state changes, resulting in a stronger influence of the state upon the church while accelerating the split between the Latin West and the Greek East. The Arian controversy shows a period of instability between state and church, and also deepens the split of East and West. But within the turmoil, ascetic practice, papacy, liturgy, and art are established, helping to transmit a common European culture while the Roman Empire begins to degenerate.