trends in historical method and modes of interpretation. Post-structuralist ideas on the relationship between language and meaning were influential in the 1980s and 1990s, for example, in Greg Dening's Mr Bligh's Bad Language (1992). Memory studies and Pierre Nora's ideas on the relationship between memory and history influenced work in a number of fields including military history, ethnographic history, oral history and historical work in Australian museums. Interdisciplinary histories drawing on the insights of fields such as sociology, anthropology, cultural studies and environmental studies have become more common since the 1980s. Transnational approaches which analyse Australian history in a global and regional context have also flourished in recent decades. Historians such as McKenna, MacIntyre and others point out that in the 21st century most historical works are not created by academic historians, and public conceptions of Australia's history are more likely to be shaped by popular histories, historical fiction and drama, the media, the internet, museums and public institutions. Popular histories by amateur historians regularly outsell work by academic historians. The internet and developments in digital technology mean that individuals and community groups can readily research, produce and distribute their own historical works. Local histories and family histories have proliferated in recent decades. A 2003 survey by the University of Technology, Sydney found that 32 per cent of respondents had engaged in family history or a history-related hobby. These developments, along with the prevalence of interdisciplinary histories, have led some Australian historians to question the boundaries of history as an academic discipline. MacIntyre has questioned the claim that specialised procedures and forms of communication can protect the discipline from "the natural impulses of humanity" and "popular history". Clark and Ashton have stated that: "The accessibility of history has fundamentally changed how we perceive the discipline and raises an important question: Can anyone be an historian today?" Historians have also questioned the boundaries between historical writing and other activities, particularly when they argue that groups have been marginalised by academic histories. Peter Reid states that "Aboriginal history today takes form in dance, art, novel, biography, autobiography, oral history, archival research, family papers, drama, poetry and film." History wars The history wars were a series of public disputes about interpretations of Australian history involving historians, politicians and media commentators which occurred between approximately 1993 and 2007 but which had their roots in the revisionist histories from the 1970s and political debates about