Arrian is regarded as the most authoritative of the extant sources for the reign of Alexander the Great. It is his work that is usually chosen to provide the narrative core of modern histories, and very often a mere reference to ‘the reliable Arrian’ is considered sufficient to guarantee the veracity of the information derived from him. What gives Arrian his prestige is his reliance on contemporary sources, Ptolemy and Aristobulus. It is recognized that Arrian's narrative is based primarily upon (...) Ptolemy, and, as long as Ptolemy is regarded as an impeccable mine of facts for Alexander's reign and Arrian's work is accepted as a faithful reproduction of Ptolemy, the Anabasis Alexandri stands out as a uniquely authoritative record of Alexander's reign. (shrink)