The history of the Australian Capital Territory as a Territory of Australia began after the Federation of Australia in 1901, when it was created in law as the site for Australia's capital city Canberra. The region has a long prior history of human habitation before the Territory's creation, however, with evidence of Indigenous Australian settlement dating back at least 21,000 years. The region formed the traditional lands associated with the Ngunnawal people and several other linguistic groups, an association known through both early European settler accounts and the oral histories of the peoples themselves. Following the colonisation of Australia by the British, the 19th century saw the initial European exploration and settlement of the area and their encounters with the local indigenous peoples, beginning with the first explorations in 1820 and shortly followed by the first European settlements in 1824. In the early 20th century, the development of the region took an unusual turn when it was chosen as the site for the creation of Australia's capital city in 1908. The planning and construction of Canberra followed, with the Parliament of Australia finally moving there in 1927, and the Territory officially becoming the Australian Capital Territory in 1938. The political development of the Territory began in 1949, when it was given its first representative in the Parliament of Australia, and was completed when it became an autonomous territory when self-government was granted in 1988.