Adelaide is the capital city of South Australia, the state's largest city and the fifth-most populous city in Australia. "Adelaide" may refer to either Greater Adelaide (including the Adelaide Hills) or the Adelaide city centre. The demonym Adelaidean is used to denote the city and the residents of Adelaide. The Traditional Owners of the Adelaide region are the Kaurna. The area of the city centre and surrounding Park Lands is called Tarndanya in the Kaurna language.
Early colonial Adelaide was shaped by the diversity and wealth of its free settlers, in contrast to the convict history of other Australian cities. It was Australia's third most populated city until the post-war era. It has been noted for its leading examples of religious freedom and progressive political reforms, and became known as the "City of Churches" due to its diversity of faiths. Today, Adelaide is known by its many festivals and sporting events, its food and wine, its coastline and hills, its large defence and manufacturing sectors and its emerging space sector, including the Australian Space Agency being headquartered here. Adelaide's quality of life has ranked consistently highly in various measures through the 21st century, at one stage being named Australia's most liveable city.
