Where was ancient Parthia located?
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Ancient Parthia was an ancient land located in southwestern Asia, corresponding roughly to the modern region of Khorāsān in northeastern Iran.12
Historically, the region was often linked with Hyrcania (modern Gorgān, Iran), and by 200 BCE, the Parthian empire had established a firm presence along the southern shore of the Caspian Sea. At its height, the empire expanded to encompass the entire Iranian Plateau and the Tigris-Euphrates valley.1