"1967-02-07Z"^^ . . . "1872-09-28Z"^^ . "1967Z"^^ . . . "David Ngunaitponi"@en . "David Unaipon (born David Ngunaitponi) (28 September 1872 \u2013 7 February 1967) was a well-known Indigenous Australian of the Ngarrindjeri people, a preacher, inventor and writer. Unaipon's contribution to Australian society helped to break many Indigenous Australian stereotypes, and he is featured on the Australian $50 note in commemoration."@en . . . . . . . . . "Indigenous Australianinventor and writer" . "Unaipon, David"@en . "1872Z"^^ . "David Unaipon (Anglicisation)"@en . .