Australia, officially the Commonwealth of Australia, is a country in the Southern Hemisphere comprising the world's smallest continent and a number of islands in the Southern, Indian, and Pacific Oceans. Neighbouring countries include Indonesia, East Timor and Papua New Guinea to the north, the Solomon Islands, Vanuatu and the French dependency of New Caledonia to the northeast, and New Zealand to the southeast.
The continent of Australia has been inhabited for more than 42,000 years by Indigenous Australians. After sporadic visits by fishermen from the north and by European explorers and merchants starting in the seventeenth century, the eastern half of the continent was claimed by the British in 1770 and officially settled through penal transportation as the colony of New South Wales on 26 January 1788. As the population grew and new areas were explored, another five largely self-governing Crown Colonies were successively established over the course of the nineteenth century.
On 1 January 1901, the six colonies federated and the Commonwealth of Australia was formed. Since federation, Australia has maintained a stable liberal democratic political system and remains a Commonwealth Realm. The capital city is Canberra, although the current national population of around 20.6 million is concentrated mainly in the large coastal cities of Sydney, Melbourne, Brisbane, Perth, and Adelaide.
The name Australia is derived from the Latin Australis, meaning of the South. Legends of an "unknown land of the south" (terra australis incognita) dating back to Roman times were commonplace in mediaeval geography, but they were not based on any actual knowledge of the continent. The Dutch adjectival form Australische was used by Dutch officials in Batavia to refer to the newly discovered land to the south as early as 1638. The first use of the word "Australia" in English was a 1693 translation of Les Aventures de Jacques Sadeur dans la Découverte et le Voyage de la Terre Australe, a 1692 French novel by Gabriel de Foigny under the pen name Jacques Sadeur.[1] Alexander Dalrymple then used it in An Historical Collection of Voyages and Discoveries in the South Pacific Ocean (1771), to refer to the entire South Pacific region. In 1793, George Shaw and Sir James Smith published Zoology and Botany of New Holland, in which they wrote of "the vast island, or rather continent, of Australia, Australasia or New Holland."
The name "Australia" was popularised by the 1814 work A Voyage to Terra Australis by the navigator Matthew Flinders who was the first person to circumnavigate Australia. Despite its title, which reflected the view of the Admiralty, Flinders used the word "Australia" in the book, which was widely read and gave the term general currency. Governor Lachlan Macquarie of New South Wales subsequently used the word in his dispatches to England. In 1817, he recommended that it be officially adopted. In 1824, the British Admiralty agreed that the continent should be known officially as Australia.