Radicalism has been inherent in South Australian history from its founding as a free settlement. Based upon the English radical liberal thought of its founders, the State's reputation grew as a progressive colony and the first to entirely separate church from state.
Before and after the arrival of Europeans, Aboriginal peoples had a well-developed cultural understanding and practical knowledge of plants, animal behaviour, local geology and meteorological conditions. Information they provided was frequently vital to the success – and even survival – of early European navigators and explorers.
Sir Charles Todd was a leader in the fields of meteorology, astronomy and communications, and is best remembered for masterminding the construction of the Overland Telegraph Line.
The bronze bust of Sir Mellis Napier, sculpted by eminent South Australian artist John Dowie, commemorates his distinguished community service, including to the law and legal profession in South Australia