Based on stylistic and technical analysis, it is possible to establish a tentative chronological orders for the pillars. The earliest one seems to be the Vaishali pillar, with its stout and short column, the rigid lion and the undecorated square abacus. Next would follow the Sankissa elephant and the Rampurva bull, also not yet benefiting from Mauryan polish, and using a Hellenistic abacus of lotus and palmettes for decoration. The abacus would then adopt the Hamsa goose as an animal decorative symbol, in Lauria Nandangarh and the Rampurva lion. Sanchi and Sarnath would mark the culmination with four animals back-to-back instead of just one, and a new and sophisticated animal and symbolic abacus (the elephant, the bull, the lion, the horse alternating with the Dharma wheel) for the Sarnath lion.