Portal:Australia/Anniversaries/October/October 18
- 1790 – HMS Supply returns from Batavia with more supplies for the colony.
- 1854 – Billy Murdoch, regarded as the finest cricket batsman of his day, was born in Sandhurst, Victoria.
- 1869 – The Lithgow Zig Zag Railway was opened.
- 1919 – Adrian Knox is appointed as the second Chief Justice of Australia.
- 1934 – Charles Prince of Morphettville is found guilty of fraud for the "ring in" of Redlock at the Murray Bridge Racing Club on July 28.
- 1942 – Larry Pickering, political cartoonist, caricaturist and illustrator, was born.
- 1980 – The federal election sees Malcolm Fraser's Liberal/National coalition government re-elected for a third consecutive term, albeit with an almost halved majority.