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In Parthian time (from 250 B.C to 224 A.d.), Iran Was affected by Hellenic culture. High classes of Parthian community, mostly possessing several properties and lands in different parts of the country, admired Greek literature and art. In fact, they praised this culture or probably pretended to love it.
Iran has constantly been under sovereignty of such a wealthy and pretender people, disregarding the poor, and often being xenophile.
Whereas, the poor and hard working people followed their ancient customs and were not in favor of Greek language and writing. They despised people admiring foreign culture.
The Parthian kings', perhaps having no place in people's hearts, were influenced by Greek art and culture. They were interested in countless Greek gods and occasionally founded
temples to worship them. Some Parthian kings were familiar with Greek language and spoke in this language. They had entitled themselevs as "Philhelene" (admirer of Greece).
The tendency to Iranian culture began gradually since the time of king "Belash I ", and the trend continued up to the end of that dynasty.
Nevertheless, the influence of Hellenic culture in Iran was lasting and continued during some period of Sasanicles dynasty.