 Complete the following phrase:  While the full extent of the current bushfires is yet to be measured, there have been a number of large scale bushfires recorded in Australian history. The widespread 1938-9 fires in Victoria, NSW, South Australia and the ACT similarly gained international headlines when the fires entered the Sydney suburbs, as did the 1994 eastern seaboard fires. The 1851 Black Thursday bushfires shocked colonial Australia with their ferocity, burning a quarter of what is now Victoria around . Lesser known is that about , or 15 per cent of Australias land mass, experienced fire in the summer of 19745. NSW was again badly affected, and three people killed, however the fires were mainly in sparsely populated inland areas. The five most deadly blazes were: 