"Although the term 'prehistory' simply indicates a period without evidence for written documents, a hierarchy was created when the subject of archaeology was in its developmental stages in the eighteenth and nineteenth centuries. During this period, societies with writing were deemed to have more scholarly importance and relevance than those without a written language (Schnapp 1996). In certain respects, this division is still maintained, though there is, it is hoped, a growing awareness that societies without writing in both the past and present have rich traditions of oral histories and complex social rules. Groups without a written record should not be thought of as primitive and, therefore, less worthy of investigation ( 2007: 8)."