AU Citizenship

History & Heritage

Federation in 1901

Federation is when the six separate British colonies in Australia joined together to form one nation. This happened on 1 January 1901, when the Commonwealth of Australia came into being and the Constitution took effect.

Key facts

  • Australia became a federation on 1 January 1901.
  • The six colonies became the six states of the new Commonwealth.
  • The first federal Parliament met in Melbourne in 1901.
  • Edmund Barton became Australia's first Prime Minister.

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