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10 January – John Gorton is sworn in as Prime Minister of Australia after the disappearance of Harold Holt.
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8 April – Fluoridation of Sydney's water supply begins.
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5 May – Three Australian journalists are killed by the Viet Cong in Saigon.
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2 July – Fifty students are arrested during an anti-Vietnam War protest in Martin Place, Sydney.
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14 December – A referendum is held in Tasmania to allow the granting of Australia's first casino license to the Wrest Point Hotel. The referendum is passed.
Plan projects on a visual timeline
Map milestones, phases, deadlines, and key events in one place so the sequence is easier to see and share. Timetoast is a timeline maker for work, school, research, and stories.