Respected historian Doron Mendels poses a daring new theory that Eusebius's monumental ECCLESIASTICAL HISTORY (325 C.E.) was meant to serve as a publicity tool to further the cause of early Christianity. Reading THE ECCLESIASTICAL HISTORY through the lenses of modern media studies, Mendels argues that Eusebius viewed the spread of Christianity as a media revolution and invented a new type of history writing, "media history," to promote it. By carefully examining Eusebius's methods, Mendels shows that Eusebius worked much like modern journalists do in selecting, shaping, and presenting stories for popular consumption.