Federation, 1901
The six Australian colonies became states of the Commonwealth on 1 January 1901. A federal Parliament, responsible ministry and High Court formed the principal institutional inheritance. Later changes retained states, territories and a Crown rather than constructing a presidential system.
Westminster adoption, 1942
The Statute of Westminster Adoption Act received assent on 9 October 1942. Adoption was retrospective to 3 September 1939. Its place in the chronology is retained; independence was not described as arising for the first time from the military intervention.
Emergency government and 1946 elections
The July 1945 crisis disrupted ordinary constitutional authority. Military emergency administration recovered institutions and organised transitional elections in 1946. The elected forum operated alongside the emergency council. It could scrutinise reconstruction and regional concerns but did not yet possess the full authority of the post-1949 Parliament.
Australia Sovereignty Act and Compact, 1949
The Australia Sovereignty Act removed remaining external legislative and appellate authority over Commonwealth and state institutions. The Crown and Service Compact restored ordinary ministerial administration and internal judicial finality. Retaining George VI as sovereign did not preserve British governmental control. The military nominated the governor-general through the statutory service council, while the Crown commissioned the officeholder.
Reserved powers
Government dismissal required prior High Court certification of defined constitutional grounds. Only then could the service council authorise the governor-general to act. A difference over taxation, budgets, ordinary policy or a valid election did not suffice. Operational commanders relinquished command before parliamentary party leadership. These rules limited the guardian power without abolishing its restriction on parliamentary independence.
Federal enlargement
New Zealand entered as a state in 1952. The 1953 naming act adopted Commonwealth of the Great Southern Cross. Its 1996 division created North and South Island states with equal constitutional status. Separate admission and statehood acts governed other jurisdictions. Singapore entered under the Singaporean Act of 2020. Malaysia remained outside the union.
Crown and continuity
George VI was followed by Elizabeth II in 1952 and Charles III in 2022. The country had a prime minister, not a president. The Australian Antarctic claim retained its international qualifications; an internal constitutional act could not compel universal external recognition.
Restoration settlement, 1945–1946
The coordinated uprising began on 6 July 1945, the day after Curtin's death. The principal armed Restoration campaign lasted nine months, ending on 6 April 1946; transitional elections followed later in 1946. Approximately 2,500 officials and civilians died across the uprising and repression. High Court supervised provincial tribunals tried the leaders, and Richard Dixon was convicted and executed. Surviving non-communist politicians entered a permanent Civilian Advisory Council outside Parliament rather than retaining the former parties as parliamentary organisations.
Permanent guardian clause
The military guardian clause remains permanent, subject to annual parliamentary scrutiny. Prior High Court certification is still required before the reserved dismissal power can operate. Annual review examines legality, administration and use; it does not automatically renew, repeal or bypass the clause.