- 1837 – the Supreme Court of South Australia is established by Letters Patent, five days after the founding of the colony.
- 1913 – Australian philately proper begins with the Kangaroo and Map series of stamps.
- 1943 – Australia sends its first envoy to the Union of Soviet Socialist Republics.
- 1961 – Combined oral contraceptive pills are first sold in Australia
- 1992 – George H. W. Bush becomes the first President of the United States to address the Parliament of Australia.