"But Clement, Origen and Eusebius are not the only early Christian scholars to say that St. Thomas went to Parthia. There is also the fourth century priest, Rufinus of Aquileia, who translated Greek theological texts into Latin, and the fifth century Byzantine church historian and legal consultant, Socrates of Constantinople, who also wrote an Ecclesiastical History after Eusebius, the second edition which is still completely extant and considered an indispensable documentary source of early church history."