Portal:Australia/Anniversaries/April/April 15
- 1903 – Electric trams begin operating in Bendigo.
- 1944 – Fred Paterson is elected to the Parliament of Queensland, representing the seat of Bowen. He remains the only member of the Communist Party of Australia to ever be elected to an Australian Parliament.
- 1981 – Foreign Minister Andrew Peacock resigns from cabinet accusing the Prime Minister of gross disloyalty.
- 1991 – The Royal Commission into Aboriginal Deaths in Custody hands down its findings.
- 1999 – A massive hailstorm hits Sydney, with most of the damage being centred on the Eastern Suburbs.