The Colony of New South Wales was a colony of the British Empire from 1788 to 1901, when it became a State of the Commonwealth of Australia. At its greatest extent, the colony of New South Wales included the present-day Australian states of New South Wales, Queensland, Victoria, Tasmania, and South Australia, the Northern Territory as well as New Zealand. The first "responsible" self-government of New South Wales was formed on 6 June 1856 with Sir Stuart Alexander Donaldson appointed by Governor Sir William Denison as its first Colonial Secretary.

The Colony of Queensland was a colony of the British Empire from 1859 to 1901, when it became a State in the federal Commonwealth of Australia on 1 January 1901. At its greatest extent, the colony included the present-day State of Queensland, the Territory of Papua and the Coral Sea Islands Territory.