History of Tasmania
Tasmania was inhabited by an indigenous population, the Tasmanian Aborigines, and evidence indicates their presence in the territory, later to become an island, at least 35,000 years ago. At the time of the British occupation and colonisation in 1803 the indigenous population was estimated at between 3000 and 10,000. Historian Lyndall Ryan's analysis of population studies led her to conclude that there were about 7000 spread throughout the island's nine nations; Nicholas Clements, citing research by N.J.B. Plomley and Rhys Jones, settled on a figure of 3000 to 4000. The combination of the so-called Black War, internecine conflict and, from the late 1820s, the spread of infectious diseases to which they had no immunity, reduced the population to about 300 by 1833. Almost all of the indigenous population was relocated to Flinders Island by George Augustus Robinson. Until the 1970s, most people thought that the last surviving Tasmanian Aborigine was Trugernanner, who died in 1876. However this "extinction" was a myth, as documented by Lyndall Ryan in 1991.
History of Australia
Van Diemen's Land, now known as Tasmania, was settled in 1803, following a failed attempt to settle at Sullivan Bay in what is now Victoria. Other British settlements followed, at various points around the continent, many of them unsuccessful. The East India Trade Committee recommended in 1823 that a settlement be established on the coast of northern Australia to forestall the Dutch, and Captain J.J.G. Bremer, RN, was commissioned to form a settlement between Bathurst Island and the Cobourg Peninsula. Bremer fixed the site of his settlement at Fort Dundas on Melville Island in 1824 and, because this was well to the west of the boundary proclaimed in 1788, proclaimed British sovereignty over all the territory as far west as longitude 129° East.