Socrates of Constantinople, also known as Socrates Scholasticus, was a Greek Christian church historian, a contemporary of Sozomen and Theodoret, who used his work; he was born at Constantinople c. 380: the date of his death is unknown. Even in ancient times nothing seems to have been known of his life except what can be gathered from notices in his Historia Ecclesiastica ("Church History"), which departed from its ostensible model, Eusebius of Caesarea, in emphasizing the place of the emperor in church affairs and in giving secular as well as church history. The history covers the years 305-439, and experts believe it was finished in 439 or soon thereafter, and certainly during the lifetime of Emperor Theodosius II, i.e., before 450. The purpose of the history is to continue the work of Eusebius of Caesarea (1.1). It relates in simple Greek language what the Church experienced from the days of Constantine to the writer's time. Ecclesiastical dissensions occupy the foreground, for when the Church is at peace, there is nothing for the church historian to relate (7.48.7). In the preface to Book 5, Socrates defends dealing with Arianism and with political events in addition to writing about the church. This edition of Church History is specially formatted with a Table of Contents.