 In 1071, it helped to restart the Theravada Buddhism in Ceylon whose Buddhist clergy had been wiped out by the Cholas.Another key development according to traditional scholarship was the emergence of the Burmese script, believed to have been derived from the Mon script in 1058, one year after the conquest of Thaton.However recent research, though not yet settled, suggests that the Burmese script may have been derived in the 10th century from the Pyu script instead.