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15 May 2026

The History of Australian Federation: From Colonies to Nation

Understand how Australia became a nation in 1901 — the story of Federation and why it matters for your citizenship test.

On 1 January 1901, six British colonies came together to form a single nation: the Commonwealth of Australia. Understanding this story is essential for the Australia and Its People section of your citizenship test.

Before Federation: Six Separate Colonies

From the late 1700s to the 1800s, Britain established six separate colonies across the continent:

  • New South Wales (1788)
  • Van Diemen's Land — now Tasmania (1825)
  • Western Australia (1829)
  • South Australia (1836)
  • Victoria (1851)
  • Queensland (1859)

Each colony had its own government, its own laws, and even its own railway gauges — which is why Australian trains still have different track widths in different states.

Why Did They Federate?

By the late 1800s, there were strong practical reasons to unite:

  • To create a national defence force
  • To control immigration at a national level
  • To allow free trade between colonies (removing internal tariffs)
  • To build national infrastructure like railways and telegraph
  • A growing sense of shared Australian identity

The Push for Federation

Australian politicians and leaders debated and drafted a constitution through the 1890s. The people of each colony then voted in referendums to approve it. When sufficient colonies voted yes, the Commonwealth of Australia Constitution Act was passed by the British Parliament in 1900.

1 January 1901: A New Nation

Australia officially became a nation on 1 January 1901. Edmund Barton became the first Prime Minister of Australia. The federal Parliament first sat in Melbourne (the temporary capital) before moving to Canberra, the purpose-built capital, in 1927.

Early Milestones

  • 1902: Australian women won the right to vote in federal elections — one of the first countries in the world to do so (though Aboriginal women were excluded until 1962)
  • 1907: Australia introduced a minimum wage
  • 1914–1918: Australia served in World War I; the Gallipoli campaign (1915) became a defining moment of national identity
  • 1927: Federal Parliament moved to Canberra
  • 1942: Australia formally adopted the Statute of Westminster, gaining full legislative independence from Britain
  • 1986: The Australia Acts ended all remaining British legislative power over Australia

What Federation Means Today

Federation created the structure of government that Australia still uses today — a federal system balancing national and state powers, governed by the Constitution. Understanding Federation helps you understand why Australia has the three-tiered government system it does.

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