 The authority supplying information from which possible vital data on Livy can be deduced is Eusebius of Caesarea, a bishop of the early Christian Church.One of his works was a summary of world history in ancient Greek, termed the "Chronikon," dating from the early 4th century AD.This work was lost except for fragments (mainly excerpts), but not before it had been translated in whole and in part by various authors such as St. Jerome.