抄録
Isidoros was an important geographer of Parthian Period, who was born in a Greek city called Charax Spasinu which was located at the mouth of the Tigris. His survived work “Mansiones Parthicae” is one of the very few records of the two great overland routes of the Parthian Empire, and it is also one of the most valuable materials for Parthian History since the works of the Parthian historians, that is, Apollodoros and other anonymous authors, have been lost.
However, the details of Isidoros' works and the era in which he lived in uncertain, so many scholars have studied them. For that reason, concerning my treatise I will investigate the proofs of scholars from the following points: 1) Isidoros' works of which there are at least three; The Geography of the World, The Description of Parthia, and Mansiones Parthicae. 2) The possible era in which his writing flourished; Isidoros' flourishing age was probably in the latter half of the first century A. D. and might be a little after Plinius the Elder. 3) Mansiones Parthicae in detail; above all, Mansiones Parthicae was an independent itinerary and it was written during the latter part of the Parthian Period, though his information was derived from an official survey of the Parthian Empire in the great period of Mithridates II (ca. 123-88/87 B. C.). 4) Comparison of the description of Parthia of Plinius' Naturalis Historia with Isidoros' Mansiones Parthicae.
