History of Sydney
From 1788 to 1900 Sydney was the capital of the British colony of New South Wales. An elected city council was established in 1840. In 1900, Sydney became a state capital, when New South Wales voted to join the Australian Federation. Sydney today is Australia's largest city and a major international capital of culture and finance. The city has played host to many international events, including the 2000 Summer Olympics.
History of Cardiff
The city was proclaimed capital city of Wales on 20 December 1955, by a written reply by the Home Secretary Gwilym Lloyd George. Caernarfon had also vied for this title. Cardiff therefore celebrated two important anniversaries in 2005. The Encyclopedia of Wales notes that the decision to recognise the city as the capital of Wales "had more to do with the fact that it contained marginal Conservative constituencies than any reasoned view of what functions a Welsh capital should have". Although the city hosted the Commonwealth Games in 1958, Cardiff only became a centre of national administration with the establishment of the Welsh Office in 1964, which later prompted the creation of various other public bodies such as the Arts Council of Wales and the Welsh Development Agency, most of which were headquartered in Cardiff.