Portal:Australia/Anniversaries/March/March 23
- 1887 – 81 miners are killed during a coal gas explosion at Bulli, New South Wales.
- 1911 – The steamer SS Yongala sinks in a cyclone off the coast of Townsville, Queensland killing 122 people.
- 1922 – An act is passed in the Queensland parliament abolishing the Legislative Council of Queensland; Queensland is the only Australian state with a unicameral parliament.