The material provided in this section is additional material pertaining to the chapter content but not found in the textbook. Instructors may choose to assign this material to students or students may simply use it for further study on particular topics.   Interactive Maps The Early Christian Councils The Spread of Christianity Palestine under the Romans, 30 CE Early Medieval Religions and Monastic Sites Readings Imperial Decrees of Constantine from Ecclesiastical History, Book 10, Ch. 5 The Letters of Pliny, Book 10, Letters 97 and 98 The Gospel According to Mark Augustine Confessions, Book 1 Augustine Confessions, Book 3 Augustine Confessions, Book 8 The Six Enneads, Book 1, Ch. 4-6