According to the Rabatak inscription, Kujula Kadphises was the great grandfather of the great Kushan king Kanishka I. He is considered as the founder of the Kushan Empire. He died in the year 80 A.D.
Seven major pillar edicts have been found at Lauriya-Araraj, Lauriya Nandangarh, Rampurva, Nigali Sagar, Sarnath, Topra, and Meerut. Ashokan pillars probably signify the axis of the world (axis mundi) that separated heaven and earth.
The Ashokan Pillar Edict-VII mentions the Dhamma Mahamattas. It propagated a proper courtesy to slaves and servants, obedience to parents, respectful behaviour towards Brahmans and Sharmanas and generiosty towards friends, acquaintances and relatives.