areas encouraged further squatting. By 1844 wool accounted for half of the colony's exports and by 1850 most of the eastern third of New South Wales was controlled by fewer than 2,000 pastoralists. In 1825, the western boundary of New South Wales was extended to longitude 129° East, which is the current boundary of Western Australia. As a result, the territory of New South Wales reached its greatest extent, covering the area of the modern state as well as modern Queensland, Victoria, Tasmania, South Australia and the Northern Territory. By 1850 the settler population of New South Wales had grown to 180,000, not including the 70–75 thousand living in the area which became the separate colony of Victoria in 1851. Establishment of further colonies Van Diemen's Land After hosting Nicholas Baudin's French naval expedition in Sydney in 1802, Governor Phillip Gidley King decided to establish a settlement in Van Diemen's Land (modern Tasmania) in 1803, partly to forestall a possible French settlement. The British settlement of the island soon centred on Launceston in the north and Hobart in the south. For the first two decades the settlement relied heavily on convict labour, small-scale farming and sheep grazing, sealing, whaling and the "dog and kangaroo" economy where emancipists and escaped convicts hunted native game with guns and dogs. From the 1820s free settlers were encouraged by the offer of land grants in proportion to the capital the settlers would bring. Almost 2 million acres of land was granted to free settlers in the decade, and the number of sheep in the island increased from 170,000 to a million. The land grants created a social division between large landowners and a majority of landless convicts and emancipists. Van Diemen's Land became a separate colony from New South Wales in December 1825 and continued to expand through the 1830s, supported by farming, sheep grazing and whaling. Following the suspension of convict transportation to New South Wales in 1840, Van Diemen's land became the main destination for convicts. Transportation to Van Diemen's Land ended in 1853 and in 1856 the colony officially changed its name to Tasmania. Victoria Pastoralists from Van Diemen's land began squatting in the Port Phillip hinterland on the mainland in 1834, attracted by its rich grasslands. In 1835, John Batman and others negotiated the transfer of 100,000 acres of land from the Kulin people. However, the treaty was annulled the