Portal:Australia/Anniversaries/January/January 18
- 1788 – HMS Supply of the First Fleet arrived in Botany Bay.
- 1878 – Construction of The Ghan railway line starts in Port Augusta, South Australia.
- 1934 – Qantas and Imperial Airways join forces and establish Qantas Empire Airways.
- 1977 – A train derailment and bridge collapse kills 83 in the Granville railway disaster.
- 2003 – The Canberra bushfires reach the city, killing four people and destroying in excess of 400 houses.