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Australia has been inhabited for at least 50,000 years, since the remote ancestors of the current Australian Aboriginal people arrived from Southeast Asia. The land was not discovered by Europeans until the 17th century. It was claimed for Britain in 1770, and first colonised in 1788 as a penal colony. Five other colonies, some penal and some free, were founded in the early 19th century.

Australia is a constitutional monarchy, with Elizabeth II reigning as 'Queen of Australia'. In 1999, a referendum was held on the question of constitutional change to a republic, with an appointed President replacing the Queen as head of state, but this was rejected. Various surveys held before and since the referendum suggest that the majority of Australians favour some form of republic, and hence many people ascribe the negative result of the referendum to dissatisfaction with the particular republican model that was proposed.

The sharing of animal and plant species between adjacent parts of Australia, Papua New Guinea, and Papua and nearby Indonesian islands point to early land bridges closed when sea levels rose. The historically traditional movement of people between these places in primitive sailing craft for trade and fishing, point to the possibility of Arab and Chinese traders to the northern islands learning of and then visiting the shores of the southern continent from as early as the 9th century. Maps compiled in Europe from the late 1400s show parts of the coastline.

The publicly funded Special Broadcasting Service carries TV and radio programmes in a variety of languages, as well as world news and documentary programming in English, and is seen as less highbrow than the ABC. SBS does have a small following, having the distinction of being the TV channel most likely to show soccer, the most played sport in Australia but said to be the least watched.

Despite being considered by some almost an anathema to literature the Australian born business man Rupert Murdoch is one of the most powerful men in media worldwide. His influence on literature includes the ownership of numerous newspapers in several countries and the publishing firm HarperCollins.

In 1901, Australia adopted a federal constitution and became a self-governing dominion of the British Empire. Australian troops took part in both world wars. Since World War II Australia has been transformed by a massive immigration programme. Australia remains a constitutional monarchy with Queen Elizabeth II as head of state: a referendum to establish a republic was defeated in 1999.

Perth is set on the Swan River, so named because of the native black swans. It is a sprawling city, extending to Joondalup in the north, Mandurah in the south and Mundaring in the east. The coastal suburbs take advantage of Perth's oceanside location and clean beaches. To the east, the city is bordered by a low escarpment called the Darling Scarp. Perth is on generally flat, rolling land - largely due to the high amount of sandy soils and deep bedrock.

Sydney is located in a coastal basin between the Pacific Ocean to the east and the Blue Mountains to the west. Sydney features the largest natural harbour in the world, Port Jackson, and also enjoys more than 70 beaches, including the famous Bondi Beach.

The earliest music of Australia was the folk music of the Australian Aborigines. Aboriginal music declined after European colonisation, and has only recently begun to be revived, often with modernised influences. Bands like Yothu Yindi have begun the popularisation of Aboriginal folk in Australia, New Zealand, the United Kingdom and elsewhere. Australia has also been home to notable classical composers as well as artists working in popular music genres such as rock, jazz, country and electronic music.

Although Australia was initially largely of British origin, and by the early 21st century was an overwhelmingly city-based society, receiving a large proportion of its cultural communication from either Hollywood and American TV networks, or home-grown productions that some claim are merely imitators.

The British Crown Colony of New South Wales began by the establishment of a settlement (later to become Sydney) in Port Jackson by Captain Arthur Phillip on January 26, 1788. The date of arrival of the First Fleet was later to become the date of Australia's national day, Australia Day.

According to Reporters Without Borders in 2004, Australia is in 41st position on a list of countries ranked by Press Freedom; well behind New Zealand (9th) and United Kingdom (28th). With the Howard government taking control of the Senate in mid-2005 after the 2004 election, media ownership regulations are likely to be relaxed so as to allow the further concentration of media ownership in the hands of a couple of entities.

The exact date of the first human habitation of Australia is still a subject of considerable research. There is strong scientific evidence for a presence around 50,000 years ago, a period of massive ecological upheaval in Australia which is believed to be consistent with human colonisation. However, there is some speculation about considerably earlier arrivals, even as far as 100,000 or more years ago. These first Australians were the remote ancestors of the current Australian Aborigines, and arrived via land bridges and navigation of significant sea crossings from present-day Southeast Asia.

Australia is home to the Great Artesian Basin - an important source of water for people and cattle in the parched outback. This basin is the world's largest and deepest fresh water basin.