Empire · since 1901 · Australasia & Oceania
Commonwealth of Australia
Also known as Australia
Britain founded a convict colony at Sydney in 1788, claiming the land despite more than 50,000 years of Aboriginal occupation. Six separate colonies grew, driven by wool, wheat and the gold rushes of the 1850s, while frontier violence and disease devastated Aboriginal and Torres Strait Islander peoples.
On 1 January 1901 the colonies federated as the Commonwealth of Australia, a self-governing dominion with a parliament modelled partly on Britain's and partly on that of the United States. One of its first laws began the White Australia policy restricting non-European immigration. Australians fought in both world wars, notably at Gallipoli in 1915, and from 1942 the country turned to the United States as its main ally. Mass immigration from Europe and later Asia transformed the country, and the White Australia policy was dismantled by 1973.

- Years
- since 1901
- Capital
- Melbourne (temporary), then Canberra from 1927
- Greatest extent
- 1901, about 7.69 million km²
- Region
- Australasia & Oceania
The whole continent and Tasmania, excluding external territories and the Antarctic claim
Legacy
Australia is a prosperous, multicultural federation that remains a constitutional monarchy under the British Crown, while recognition of Indigenous Australians is still a central national debate.
Rulers
- Edmund Barton 1901–1903
First prime minister
- Alfred Deakin 1903–1904, 1905–1908, 1909–1910
Shaped the young federation
- Billy Hughes 1915–1923
Wartime prime minister
- John Curtin 1941–1945
Turned to the United States as Japan advanced
- Robert Menzies 1939–1941, 1949–1966
Longest-serving prime minister
- Gough Whitlam 1972–1975
Reforming prime minister dismissed by the governor-general
- Bob Hawke 1983–1991
Opened up the economy
Realms on the map
- Commonwealth of Australia since 1905
Wars
- First World War 28 July 1914 – 11 November 1918
- Second World War 1 September 1939 – 2 September 1945
- Korean War 25 June 1950 – 27 July 1953
- Vietnam War 1955 – 30 April 1975