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Oceania · The modern island states
Papua New Guinea
1975–present
Papua New Guinea is the most linguistically diverse country on earth — more than 800 languages among some ten million people — and one of the last to be decolonised: it became independent on 16 September 1975, after a century of German, British and Australian rule, and it has since combined a Westminster constitution with a political culture that runs on kinship, patronage and provincial power.
- Existed
- 1975–present
- Shown on the map
- 1946–present
- Peak area
- 486k km²
- Region
- Oceania
At a glance
| Name | Independent State of Papua New Guinea |
| Dates | 1975–present (the site draws 1946–2024) |
| Where | Eastern New Guinea, the Bismarck Archipelago, Bougainville and islands |
| Capital | Port Moresby |
| Population | About 10 million |
| Government | Parliamentary democracy and constitutional monarchy |
| Economy | Minerals, oil and gas, agriculture and aid |
| Independence | 16 September 1975 |
How did it become independent?
Through Australian decolonisation. The territory was divided between German New Guinea (1884–1914) and British Papua, both administered by Australia after the First World War and united as the Territory of Papua and New Guinea after 1949. A legislative council, then a house of assembly, were created in the 1960s; self-government came in 1973, and independence on 16 September 1975.
The new state inherited a Westminster system, a constitution with a strong bill of rights and a national goals framework, and a country of extraordinary linguistic and ecological diversity.

What happened in Bougainville?
A secessionist war, then a peace agreement. The Panguna copper mine, one of the largest in the world, generated a large share of the country's exports and revenue; its environmental damage and the grievances of Bougainvillean landowners led to a rebellion in 1988, a decade of fighting, and a peace agreement in 2001 that provided for autonomy and a referendum.
The referendum, held in November 2019, produced a 97.7 per cent vote for independence on a turnout of about 87 per cent (98.3 per cent of valid votes). The result was non-binding, and the process of consultation with the national parliament has continued since.
What is the economy?
Minerals, oil and gas. Gold, copper, oil and liquefied natural gas dominate exports; agriculture employs most people but produces little of the cash income; and the state's revenue depends heavily on a few large projects, which makes it vulnerable to price swings and to disputes over land and royalties.
The Panguna mine has been closed since 1989, and its reopening is one of the country's unresolved questions. With Solomon Islands and Vanuatu it forms the Melanesian Spearhead Group, and it contributed troops to the 1980 intervention in Vanuatu and police to Timor-Leste in 2006.
What happened in 2024?
Riots and a change of government. In January 2024 a pay dispute among police and public servants escalated into riots in Port Moresby, with shops burned and lives lost; the government declared a state of emergency, and James Marape retained the premiership after a parliamentary vote. The episode exposed the fragility of state capacity in a country where services depend on a few institutions.
Common myths about Papua New Guinea
| Myth | What the evidence says |
|---|---|
| PNG was a German colony throughout | German New Guinea was only the northern half; the south was British Papua. |
| Independence came in 1946 | It came on 16 September 1975; 1946 is a dataset date. |
| Bougainville voted to stay | It voted 97.7 per cent for independence in 2019. |
| The country is monocultural | It has over 800 languages. |
| The economy is agricultural | Minerals, oil and gas dominate exports. |
| The 2024 riots were a coup | They began as a pay dispute and ended with the government surviving a vote. |
| Panguna is operating | It has been closed since 1989. |
Timeline of Papua New Guinea
| Year | Event |
|---|---|
| 1884 | German New Guinea and British Papua |
| 1914 | Australia occupies German New Guinea |
| 1949 | The two territories unite |
| 1973 | Self-government |
| 16 September 1975 | Independence |
| 1988 | Bougainville rebellion begins |
| 2001 | Bougainville peace agreement |
| November 2019 | Referendum: 97.7% for independence |
| January 2024 | Port Moresby riots |
What the map shows next
At 1985 on the map the country is ten years old, and the Bougainville conflict is three years away.
At 2024 on the map the riots have shaken Port Moresby, and the Solomon Islands is its closest neighbour.
Common questions
- When did PNG become independent?
- On 16 September 1975, from Australia.
- Who was the first prime minister?
- Michael Somare.
- What was the Bougainville conflict?
- A secessionist war from 1988, ended by the 2001 peace agreement.
- What did the 2019 referendum decide?
- 97.7 per cent voted for independence; the result is being consulted on with the national parliament.
- What is the economy based on?
- Minerals, oil and gas, with agriculture employing most people.
- Why does the map start in 1946?
- It is a dataset date; the territory was administered by Australia from 1914.
- What happened in January 2024?
- Riots in Port Moresby over a pay dispute, with a state of emergency declared.
- What is Panguna?
- The copper mine at the centre of the Bougainville conflict, closed since 1989.
- Is PNG a monarchy?
- Yes, a constitutional monarchy with the British monarch as head of state.
- How many languages are spoken?
- More than 800.
Sources
Every source below was consulted while writing this entry.
- PNG National Statistical Office.
- Bougainville Referendum Commission results.
- Australian National Archives, on the territories.
- Regan and Griffin, on Panguna and Bougainville.
- Fraenkel, on Pacific politics.
Data sources for the map
- Cliopatria v0.12 (Seshat Global History Databank, CC BY 4.0).
- Historical Basemaps (GPL-3.0).
This entry was written from the sources above and last updated .
Text available under CC BY-SA 4.0: reuse it with a credit to The World Through Time and a link to this page.
Border geometry for the map itself comes from Cliopatria v0.12 (Seshat Global History Databank, CC-BY-4.0).
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