Australia, or Commonwealth of Australia, is found in the Southern Hemisphere and includes the Australian mainland, the island of Tasmania and a number of islands in the Pacific and Indian Oceans. There are six states, Western Australia, South Australia, Victoria, New South Wales, Tasmania and Queensland, with two mainland territories, Australian Capital Territory and the Northern Territory. Inhabited for at least 40,000 years before the arrival of the Europeans, Australia has a rich natural history and unique flora and fauna. Australia is known for its beautiful beaches, diving possibilities, the outback and the laid back attitude of its inhabitants.