Much of Australia's culture is derived from European and more recently American roots, but distinctive Australian features have evolved from the environment, aboriginal culture, and the influence of Australia's neighbours. The vigor and originality of the arts in Australia—films, opera, music, painting, theater, dance, and crafts—are achieving international recognition.
Melbourne's restaurants are numerous, and are generally of reasonable quality and good value. Below are some of the major restaurant strips, however there are many other restaurants not in these locations which offer similar or better-quality food and usually at lower cost. The Age newspaper produces two "Good Restaurant" guides - one for low-cost eating and another for more elaborate restaurants.
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.
Emigration now also plays a role in changing Australian demographics. The term, Australian Diaspora, refers to the 850,000 Australian citizens who today live outside Australia. This phenomena is relatively new in Australia's history, estimated as having occurred over the last 40 years. Awareness of this demographic (almost 5% of the Australian population) is growing and supported by government initiates.
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.