- 1787 – Charter of Justice signed providing the authority for the establishment of the first New South Wales Courts of Criminal and Civil Jurisdiction.
- 1844 – The first permanent synagogue in Australia opens in Sydney.
- 1845 – Ludwig Leichhardt discovers and names the Burdekin River.
- 1856 – South Australia introduces the secret ballot.
- 1905 – The Tasmanian General Post Office opens in Hobart, Tasmania.
- 1930 – Isaac Isaacs appointed as the third Chief Justice of Australia.
- 2005 – A Royal Australian Navy Westland Sea King helicopter crashes on the Indonesian island of Nias while providing humanitarian support.
