Socrates of Constantinople

Socrates of Constantinople (c. 380 – after 439), also known as Socrates Scholasticus (Ancient Greek: Σωκράτης ὁ Σχολαστικός), was a 5th-century Greek Christian church historian, a contemporary of Sozomen and Theodoret.

He is the author of a Historia Ecclesiastica ("Church History", Ἐκκλησιαστική Ἱστορία) which covers the history of late ancient Christianity during the years 305 to 439.

Notable works: Ecclesiastical history

Source: Wikipedia — https://en.wikipedia.org/wiki/Socrates_of_Constantinople