This is the design that was adopted by India in the 3rd century BCE for some of its sculptural friezes, such as on the abaci of the Pillars of Ashoka, or the central design of the Pataliputra capital, probably through the Seleucid Empire or Hellenistic cities such as Ai-Khanoum."Reflections on The origins of Indian Stone Architecture", John Boardman, p.16
