Чжан Цянь
The Chinese explorer Zhang Qian, who visited the neighbouring countries of Bactria and Parthia along with Transoxiana in 126 BCE, made the first known Chinese report on this region. Zhang Qian clearly identifies Parthia as an advanced urban civilisation that farmed grain and grapes, and made silver coins and leather goods. It was ruled successively by Seleucids, the Greco-Bactrian Kingdom, the Parthian Empire and the Kushan Empire before Sassanid rule.