
I know that the answer to the question "What unique thing did Bonner do in 1971?" is in "During McMahon's period in office, Neville Bonner joined the Senate and became the first Indigenous Australian in the Australian Parliament. Bonner was chosen by the Liberal Party to fill a Senate vacancy in 1971 and celebrated his maiden parliamentary speech with a boomerang throwing display on the lawns of Parliament. Bonner went on to win election at the 1972 election and served as a Liberal Senator for 12 years. He worked on Indigenous and social welfare issues and proved an independent minded Senator, often crossing the floor on Parliamentary votes.". Can you tell me what it is? 


boomerang throwing display on the lawns of Parliament
