Sydney
Under the reign of Queen Victoria federation of the six colonies occurred on 1 January 1901. Sydney, with a population of 481,000, then became the state capital of New South Wales. The Great Depression of the 1930s had a severe effect on Sydney's economy, as it did with most cities throughout the industrial world. For much of the 1930s up to one in three breadwinners was unemployed. Construction of the Sydney Harbour Bridge served to alleviate some of the effects of the economic downturn by employing 1,400 men between 1924 and 1932. The population continued to boom despite the Depression, having reached 1 million in 1925.
Constitutional history of Australia
During the 19th century, separate British colonies were formed in Australia. In 1825, Tasmania, named Van Diemen's Land, was proclaimed a separate colony from the colony of New South Wales. The Swan River Colony of Western Australia was established in 1832, separately from that of New South Wales, effectively taking over by Britain of the remainder of the Australian continent. Following the Treaty of Waitangi, William Hobson declared British sovereignty over New Zealand in 1840 and was part of the colony of New South Wales. In 1841, it was separated from the colony of New South Wales to form the new Colony of New Zealand. South Australia was formed in 1836 separately of the colony of New South Wales, and Victoria in 1851 and Queensland in 1859 both from the colony of New South Wales. By Letters Patent on 6 June 1859, Queen Victoria gave her approval to the separation of the colony of Queensland from New South Wales. On the same day an Order-in-Council gave Queensland its own Constitution. Queensland became a self-governing colony with its own Governor, a nominated Legislative Council and an elected Legislative Assembly. South Australia was founded as a "free province"—it was never a penal colony. Victoria and Western Australia were also founded "free", but later accepted transported convicts. A campaign by the settlers of New South Wales led to the end of convict transportation to that colony; the last convict ship arrived in 1848.