History

Human habitation of the Australian continent is estimated to have begun between 42,000 and 48,000 years ago, possibly with the migration of people by land bridges and short sea-crossings from what is now South-East Asia. These first inhabitants may have been ancestors of modern Indigenous Australians. The first recorded European sighting of the Australian mainland, and the first recorded European landfall on the Australian continent, are attributed to the Dutch navigator Willem Janszoon. He sighted the coast of Cape York Peninsula in early 1606, and made landfall on 26 February at the Pennefather River near the modern town of Weipa on Cape York. The Dutch charted the whole of the western and northern coastlines and named the island continent "New Holland" during the 17th century, but made no attempt at settlement. 

With the loss of its American colonies in 1780, the British Government sent a fleet of ships, the "First Fleet", under the command of Captain Arthur Phillip, to establish a new penal colonyin New South Wales. A camp was set up and the flag raised at Sydney Cove,Port Jackson, on 26 January 1788,a date which became Australia's national day, Australia Day although the British Crown Colony of New South Wales was not formally promulgated until 7 February 1788. The first settlement led to the foundation of Sydney, the establishment of farming, industry and commerce; and the exploration and settlement of other regions.

The United Kingdom formally claimed the western part of Western Australia (the Swan River Colony) in 1828. On 1 January 1901, federation of the colonies was achieved after a decade of planning, consultation and voting. The Commonwealth of Australia was established and it became a dominion of the British Empire in 1907. The Federal Capital Territory (later renamed the Australian Capital Territory) was formed in 1911 as the location for the future federal capital of Canberra. 

The shock of the United Kingdom's defeat in Asia in 1942 and the threat of Japanese invasion caused Australia to turn to the United States as a new ally and protector. Since 1951, Australia has been a formal military ally of the US, under the ANZUS treaty. The final constitutional ties between Australia and the UK were severed with the passing of the Australia Act 1986, ending any British role in the government of the Australian States, and closing the option of judicial appeals to the Privy Council in London