History of Sydney
With the inauguration of the Commonwealth of Australia on 1 January 1901, Sydney ceased to be a colonial capital and became the capital of the Australian state of New South Wales. With industrialisation, Sydney expanded rapidly, and by the early 20th century it had a population well in excess of one million.
History of New South Wales
A golden age of a new kind began in 1851 with the announcement of the discovery of payable gold at Ophir near Bathurst by Edward Hargraves. In that year New South Wales had about 200,000 people, a third of them within a day's ride of Sydney, the rest scattered along the coast and through the pastoral districts, from the Port Phillip District in the south to Moreton Bay in the north. The gold rushes of the 1850s brought a huge influx of settlers, although initially the majority of them went to the richest gold fields at Ballarat and Bendigo, in the Port Phillip District, which in 1851 was separated to become the colony of Victoria.