National timeline
National events from Indigenous and colonial foundations through federation, the 1936 divergence, Restoration and the Commonwealth’s position in 2026. The confirmed chronology includes the 1962 restricted test record, 1967 satellite, 1972 Vanuatu admission and subsequent statehood settlements.
- 1788
Colonial settlement
British settlement at Sydney begins the colonial period, alongside continuing Indigenous societies and the consequences of dispossession.
- 1901
Australian federation
The six founding colonies become states of the Commonwealth of Australia on 1 January.
- 1936–1939
Mining boom and CPA growth
Major mineral discoveries accelerate industrial expansion. Communist electoral support and militant industrial committees grow.
- 1940
Three-way electorate
Labor, the CPA and the combined non-Labor bloc account for approximately one-third each of the national vote.
- 1941
Curtin ministry
John Curtin becomes prime minister on 7 October, leading Labor with CPA parliamentary supply support.
- 1942
Westminster adoption
The adoption act receives assent on 9 October, retrospectively effective from 3 September 1939.
- 5–6 July 1945
Curtin’s death and the coordinated uprising
Curtin dies on 5 July; the CPA uprising begins on 6 July. Attacks on Canberra and state parliaments lead to the nine-month Restoration campaign.
- 6 April 1946
Main Restoration campaign ends
Nine months of armed restoration conclude. About 2,500 officials and civilians die across the uprising and repression. High Court supervised provincial tribunals try the leaders; Dixon is convicted and executed after trial.
- 1946
Transitional elections and reconstruction
A transitional Parliament and veterans’ congress supervise recovery under emergency guardianship. Morshead begins his governorship.
- 1946
Civil Rights Charter
Gay and lesbian people gain protection from persecution and freedom of civil marriage.
- 1946–1954
Morshead governorship
The first governor-general spans emergency administration and the civilian Compact; his commission is regularised in 1949.
- 1948
Republic of China alliance
Cooperation with Nationalist China establishes the continuous treaty partnership later maintained with Taiwan.
- 1949
China war remains unresolved
CGSC and the ROC enter the continuing conflict with the newly established CCP-led PRC. No final peace treaty is reached through 2020.
- 1949
Parliamentary settlement
The Crown and Service Compact restores civilian parliamentary government. Nathaniel Mercer becomes prime minister; reserved dismissal requires prior High Court approval.
- 1949
Australia Sovereignty Act
The new national act removes remaining external legislative and appellate authority while retaining the Crown.
- 1950–1953
Korean War
The enlarged intervention brings heavy casualties. The armistice remains on 27 July 1953; a parliamentary inquiry follows.
- 1951
Swell Act
Voluntary membership applications are restricted to island nations of Southeast Asia and the Pacific.
- 1952
Papua New Guinea compact
Papua and New Guinea enter an internally self-governing Commonwealth territory with local institutions and federal representation.
- 1952
New Zealand state union
A negotiated union after economic crisis admits New Zealand as a state, with Wellington as its capital.
- 1953
The Great Southern Cross name
The expanded federation adopts Commonwealth of the Great Southern Cross after New Zealand’s admission.
- 1954
Civil defence and Japanese cooperation
The Civil Defence Act establishes shelter requirements. A separate Industrial Cooperation Accord begins an early industrial partnership with Japan.
- 1955
West Papua incorporation
Australian forces establish control, followed by a Dutch transfer agreement. Indonesian claims continue.
- 1956
East Timor invasion
A regional crisis triggers the seizure of Portuguese East Timor. Contested integration is followed by later diplomatic regularisation.
- 1956
Amphibious division
The 2nd Australian Amphibious Division is founded around the 2 RAR tradition.
- 1958
Bougainville territory
Negotiations establish a separate Australian territorial administration.
- 1960
Fiji joins
A British transfer and local constitutional votes establish Commonwealth territorial status.
- 1962
Concealed national nuclear test
The restricted historical annex records the first national test. Government acknowledgement remains absent through 2026.
- 1963–1966
Indonesian Confrontation
Regional fighting and territorial disputes conclude in an uneasy armed peace that continues through 2020.
- 1964 and 1968
Original missile families
The M1 air-defence family enters service in 1964; the M2 coastal and ship-launched anti-ship system follows in 1968.
- 1965
Solomon Islands admission
The Solomon Islands enter as a separate territory with Honiara as capital.
- 1966
Allied-Asian migration reform
Approved Asian allies receive treaty-based permanent entry pathways during the Vietnam commitment.
- 1966
Southern Dollar decimalisation
The common decimal currency adopts 100 cents to the Southern Dollar.
- 1966–1972
Nuclear fleet emerges
The first Australian nuclear submarine enters service in 1966, missile cruiser in 1969 and carrier in 1972.
- 1967
First national satellite
The first Commonwealth satellite launch establishes the orbital programme under the Air Force’s space and rocket institution.
- 1968
Nauru admission
Nauru enters as a territory; Yaren district is the administrative centre.
- 1972, 1977, 1982
Commonwealth-class carriers
HMSCS Melbourne, HMSCS Sydney and HMSCS Australia successively create the three-nuclear-carrier force.
- 1972
Vanuatu admission
Vanuatu joins as a territory with its capital at Port Vila.
- 1975
South Vietnam survives
Continued Australian and regional support prevents the collapse of South Vietnam.
- 1975
PNG statehood
Papua New Guinea meets the public-service and institutional assessment and becomes a state, remaining separate from West Papua and Bougainville.
- 1980
Naval F-111 enters service
Four specialised branches begin the first service block. Each large nuclear carrier has a planned total wing of 72 aircraft across all types.
- 1980
Fiji statehood
Fiji becomes a state with Suva as capital, preserving its communities and customary institutions.
- 1982
Falklands commitment
An Australian nuclear carrier group, naval support, intelligence and replenishment assist Britain.
- 1985, 1995, 2003
Naval Wing modernisation
Successive aircraft blocks update weapons and flight systems. The later two editions adopt USN-inspired grey with Australian markings.
- 1990
West Papua statehood
West Papua becomes a state with Jayapura as capital and remains separate from PNG.
- 1991
Soviet collapse
The Soviet Union dissolves in 1991. Strategy shifts to remaining communist powers, regional instability and maritime pressure.
- 1995
Queensland divides
North Queensland and South Queensland become equal states, with capitals at Townsville and Brisbane. The council-based settlement keeps Rockhampton in the north and Gladstone in the south. North retains UTC+10 throughout the year; South adopts summer daylight saving.
- 1996
New Zealand divides
North and South Island become separate states, with capitals at Whangārei and Christchurch. Recognised outlying groups enter the Federal Pacific District administration.
- 1998–2006
Vietnamese federation
A joint commission begins in 1998, a Federal Compact is agreed in 2004 and peaceful federal reunification takes effect in 2006.
- 2005, 2012, 2019
Federation-class successors
HMSCS New Zealand, HMSCS Pacific and HMSCS Southern Cross replace the first nuclear carrier generation.
- 2016
Commonwealth Network Crisis
Supplier compromise disrupts logistics and administration. The High Court refuses to certify dismissal grounds, and a national recovery programme follows.
- 2020
Mature Commonwealth
Population reaches 100 million. Three principal carriers each have a planned total wing of 96 aircraft; nuclear electricity is about 50% of generation.
- 2020
Singapore joins
The Singaporean Act admits Singapore directly as a state following a locally supported response to Indonesian threats. Equivalent military or public service is recognised. Malaysia remains a sovereign partner.
- 2022
Charles III succeeds
The Crown’s succession follows Elizabeth II’s death. The parliamentary and service settlement continues.
- 2026
National economic estimate
The working estimate is 104 million residents and US$100,000 output per resident, producing nominal GDP of US$10.4 trillion.
The thirty development decisions were incorporated on 3 October 2026. The decision record preserves each accepted answer and four-choice proposal controls.