Society and culture
Since 1788, the primary basis of Australian culture has been Anglo-Celtic Western culture. Distinctive(that is characteristic or typical of something) cultural features have also arisen(to start to exist) from Australia's natural environment and Indigenous(native to a land or region) cultures. Since the mid-20th century, American popular culture has strongly influenced Australia, particularly through television and cinema. Other cultural influences come from neighbouring Asian countries, and through large-scale(large in amount, scope or extent) immigration from non-English-speaking nations.
Population
Most of the estimated 22 million Australians are descended(to come down, as from a source, original, or stock; to be derived; to proceed by generation) from colonial-era settlers(someone who settles in a new location, especially one who makes a previously uninhabited place his home) and immigrants from Europe, with almost 90% of the population being of European descent. For generations, the vast(very great in size, amount, degree, intensity, or especially extent) majority of immigrants came from the British Isles, and the people of Australia are still mainly of British or Irish ethnic origin. In the 2006 Australian Census(an official count of members of a population), the most commonly nominated ancestry(ancestral lineage; hence, birth or honourable descent) was Australian (37.13%), followed by English (31.65%), Irish (9.08%), Scottish (7.56%), Italian (4.29%), German (4.09%), Chinese (3.37%), and Greek (1.84%).
Languages
English is the national language. Australian English has a unique(being the only one of its kind) accent and a small number of unique terms(a word or phrase, especially one from a specialised area of knowledge), some of which have found their way into other dialects(a variety of a language that is characteristic of a particular area, community or group) of the English-speaking world. Grammar and spelling are largely based on those of British English. According to the 2006 Census, English is the only language spoken at home for close to 79% of the population. The next most common languages spoken at home are Italian (1.6%), Greek (1.3%) and Cantonese (1.2%).
Religion
Australia has no state religion. In the 2006 Census, 64% of Australians listed themselves as Christian, including 26% as Roman Catholic and 19% as Anglican. The second-largest religion in Australia is Buddhism (2.1%), followed by Islam (1.7%), Hinduism (0.8%), and Judaism (0.5%). Overall, fewer than 6% of Australians identify with non-Christian religions. About 19% of the population cited "No religion", and a further 12% did not answer (the question is optional). Religion does not play a central role in the lives of much of the population, although young adults are somewhat more religious than their elders(an older person).