Arrian of Nicomedia was a Greek historian, public servant, military commander, and philosopher of the Roman period.
The Anabasis of Alexander by Arrian is considered the best source on the campaigns of Alexander the Great. Wikipedia
Born: Nicomedia
Died: Athens, Greece
Full name: Arrian of Nicomedia
Nationality: Greek
Notable work: The Anabasis of Alexander; Indica; Periplus of the Euxine Sea