Portal:Australia/Anniversaries/September/September 20

The iconic view of the penitentiary originally built as a flour mill, across the water.

• 1830 – The Port Arthur penal settlement was established.
• 1975 – Thirteen miners are killed in an underground coal mine explosion at the Kianga Mine at Moura, Queensland.
• 1999 – Australian troops commanded by Peter Cosgrove arrive in East Timor as a part of INTERFET peacekeeping operations.