 The Rabatak inscription is written on a rock in the Bactrian language and Greek script and found in 1993 at the site of Rabatak, near Surkh Kotal in Afghanistan.The inscription relates to the rule of the Kushan emperor Kanishka and gives remarkable clues to the genealogy of the Kushan dynasty.The Halmidi inscription is the oldest known inscription in the Kannada language.