Appian of Alexandria (/ˈæpiən/; Greek: Ἀππιανὸς ἈλεξανδρεύςAppianòs Alexandréus; Latin:Appianus Alexandrinus; c.AD 95–c.AD 165) was a Roman historian of Greek origin who flourished during the reigns of Emperors of Rome Trajan, Hadrian, and Antoninus Pius.