The Kushans built one of the most intriguing political power in world history. Contemporary to the Roman Empire and the Han Empire, across millenniums around the Common Era, this regime lasted more than three hundred years counting from its dominance at Bactria around the beginning of the first century BCE to the its submission to the Sassanian Empire in the third century CE. At the apex of imperial expansion, the Kushan Empire encompassed a large territory from Central Asia to South Asia. Yet the Kushan regime was probably among the least understood ancient empires in world history. Scholars who study various aspects of the Kushan culture have encountered many insurmountable difficulties to set up a historical frame, chronologically and geographically, for the e