Portal:Australia/Anniversaries/December/December 17
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- 1794 – Acting Governor of New South Wales Francis Grose leaves New South Wales for England.
- 1927 – Batsman Bill Ponsford scores 437 for Victoria against Queensland at the Melbourne Cricket Ground.
- 1967 – Prime Minister Harold Holt goes swimming at Cheviot Beach on Point Nepean, Victoria and is never seen again.
- 1980 – Two gunmen kill Turkish Consul-General Mehmet Baydar in Sydney, the killers were never apprehended.