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.
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.