In the 1st century BCE in his "Parthian stations", Isidorus of Charax mentions the rule of the Parthians over Arachosia, an area south of the Hindu Kush and next to today's Afghanistan, and populated by Greek colonies:
In his "Parthian stations", Isidorus of Charax discusses the Parthian Empire's control over Arachosia in the 1st century BCE, a region situated south of the Hindu Kush and adjacent to modern-day Afghanistan. The area was inhabited by Greek colonies at that time.