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.
Demographics of Sydney
Sydney overtook Melbourne as Australia's most populous city in the early twentieth century, and reached the million inhabitants milestone around 1925. The opening of the Sydney Harbour Bridge helped pave the way for further urban development north of Sydney Harbour. Post-war immigration and a baby boom helped the population reach two million by 1962. Sydney remained Australia's most populous city throughout the 20th century, and is projected to retain this position for much of the 21st century.