Since the 1970s and following the abolition of the White Australia policy, immigration from Asia and elsewhere was also promoted.The passing of the Australia Act 1986 ended all possibility for any vestigial role of the British government in the government in Australia and removed the already seldom-used option of judicial appeals to the Privy Council in London.Traditional ownership of land ("native title") was not recognised in law until 1992, when the High Court of Australia held in Mabo v Queensland (No 2) that the legal doctrine that Australia had been terra nullius ("land belonging to no one") did not apply to Australia at the time of British settlement.
Australia is a member of the United Nations, G20, Commonwealth of Nations, ANZUS, Organisation for Economic Co-operation and Development (OECD), World Trade Organization, Asia-Pacific Economic Cooperation, and the Pacific Islands Forum.
The population of 25 million Until the early 19th century, Australia was best known as "New Holland", a name first applied by the Dutch explorer Abel Tasman in 1644 (as Nieuw-Holland) and subsequently anglicised.
Australia has since maintained a stable liberal democratic political system that functions as a federal parliamentary constitutional monarchy comprising six states and several territories.
Australia has the world's 13th-largest economy and tenth-highest per capita income (IMF).
Other epithets include "the Great Southern Land", "the Lucky Country", "the Sunburnt Country", and "the Wide Brown Land".