Analysis of information sources in references of the Wikipedia article "Seleucid Empire" in English language version.
The Greco-Macedonian Elite. The Seleucids respected the cultural and religious sensibilities of their subjects but preferred to rely on Greek or Macedonian soldiers and administrators for the day-to-day business of governing. The Greek population of the cities, reinforced until the second century BC by immigration from Greece, formed a dominant, although not especially cohesive, elite.
Most of the Asiatic occupations of Alexander, Iran as the core of them, were given to Seleucus I at first. Thus, Iran came under the ruling of the Seleucid. The Seleucid was a Greek state that commanded Western Asia between 312 and 64 BC. The Seleucid Empire was founded by Seleucus I.
By 201–200 it appeared that the old structure would be replaced by a tremendous expansion in the power of two already formidable Greek states –Antigonid Macedon and the Seleucid Empire– or perhaps even that one of these two formidable powers would emerge the sole victor.
In addition to the court and the army, Syrian cities were full of Greek businessmen, many of them pure Greeks from Greece. The senior posts in the civil service were also held by Greeks. Although the Ptolemies and the Seleucids were perpetual rivals, both dynasties were Greek and ruled by means of Greek officials and Greek soldiers. Both governments made great efforts to attract immigrants from Greece, thereby adding yet another racial element to the population.
