This twenty cent piece was released by the Royal Australian Mint in 2001 as part of their extensive program celebrating the Centenary of Federation. The piece commemorates the inclusion of Northern Territory in the Australian Federation. The
The coin was included in two sets issued throughout the year - the Northern Territory three coin set, and the twenty coin Centenary of Federation collection. Each set was issued in both proof and uncirculated varieties.
Attempts to settled in the north of Australia failed multiple times due to the areas isolation and harsh conditions.(Ted Ling, 2017) In the early 1860s northern Australia was taken under the control of the South Australian Government. In 1869 the northern settlement of Darwin was established. In the following decade gold was discovered in the area helping to promote settlement in the area. In 1889 the premier of New South Wales, Henry Parks, proposed the creation of a united Australian government. 1901 the plan came to fruition with the establishment of the new Australian Commonwealth. Within the commonwealth was state of South Australia which remained in control of northern Australia. In 1911 the Northern Territory assumed the responsibility of the Commonwealth from South Australia.