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.
Seat of Government Act 1908
The act repealed the earlier "Seat of Government Act 1904" which had previously selected a site at Dalgety for the new capital. The actual creation of the Federal Capital Territory (now Australian Capital Territory) did not occur until after Charles Robert Scrivener had surveyed the area and defined a potential border. The "Seat of Government Acceptance Act 1909" and "Seat of Government Surrender Act 1909" transferred the land from the state of New South Wales to the Commonwealth to create the territory. The new territory's laws were created through the "Seat of Government (Administration) Act 1910".