The Deuteronomistic view is that an early version of the history was composed in the time of king Hezekiah (8th century BC); the bulk of the first edition dates from his grandson Josiah at the end of the 7th BC, with further sections added during the Babylonian exile (6th century BC) and the work was substantially complete by about 550 BC. Further editing was apparently done even after then. For example, A. Graeme Auld, Professor of Hebrew Bible at the University of Edinburgh, contends that the silver quarter-shekel which Saul's servant offers to Samuel in 1 Samuel 9 "almost certainly fixes the date of this story in the Persian or Hellenistic period" because a quarter-shekel was known to exist in Hasmonean times.