Australian Capital Territory
The Australian Capital Territory, often abbreviated ACT, is the capital territory of the Commonwealth of Australia and is the smallest self-governing internal territory. It is enclaved within New South Wales and is regularly referred to as Australia's "Bush Capital".
Its capital is Canberra, which is also the capital of the Commonwealth of Australia.
Its population is around 360,000.
The need for a National Territory was flagged by colonial delegates during the Federation conventions of the late 19th century. Section 125 of the Australian Constitution provided that following Federation in 1901, land would be ceded freely to the new Federal Government. The territory was transferred to the Commonwealth by the state of New South Wales in 1911, two years prior to the naming of Canberra as the National Capital in 1913.
For more details see http://en.wikipedia.org/wiki/Australian_Capital_Territory