Apiano.

"Appian of Alexandria (/æpin/; Greek: Appianòs Alexandreús; Latin: Appianus Alexandrinus; c.95 c.AD 165) was a Greek historian with Roman citizenship who flourished during the reigns of Emperors of Rome Trajan, Hadrian, and Antoninus Pius. He was born c. 95 in Alexandria. After holding the senior offices in the province of Aegyptus (Egypt), he went to Rome c. 120, where he practised as an advocate, pleading cases before the emperors (probably as advocatus fisci, an important official of the imperial treasury). It was in 147 at the earliest that he was appointed to the office of procurator, probably in Egypt, on the recommendation of his friend Marcus Cornelius Fronto, an influential rhetorician and advocate. Because the position of procurator was open only to members of the equestrian order (the "knightly" class), his possession of this office tells us about Appian's family background. His principal surviving work ( Romaiká, known in Latin as Historia Romana and in English as Roman History) was written in Greek in 24 books, before 165. This work more closely resembles a series of monographs than a connected history. It gives an account of various peoples and countries from the earliest times down to their incorporation into the Roman Empire, and survives in complete books and considerable fragments. The work is very valuable, especially for the period of the civil wars. The Civil Wars, books 1317 of the Roman History, concern mainly the end of the Roman Republic and take a conflict-based view and approach to history. Despite the lack of cited sources for his works, these books of the Roman History are the only extant comprehensive description of these momentous decades of Roman history. The other extant work of Appian is his "The Foreign Wars", which includes an ethnographic style history recounting the various military conflicts against a foreign enemy in Roman history, until the time of Appian."