South Australia on the Eve of War

May marks the annual South Australia's History Festival. South Australia on the Eve of War was launched on Tuesday as part of the festival. Here we have an excerpt from book's introduction, written by Melanie Oppenheimer and Margrette Kleinig. Three individuals – David Unaipon, Catherine Helen Spence and Douglas Mawson – encapsulate the spirit of South Australia in the years between Federation in 1901 and the eve of war. All, too, have graced our paper currency at one point…