Australia

• 1. Introduction

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  Australia is the world's flattest and driest inhabited continent, a land area of 7,688,287 square kilometres that ranks sixth-largest among all countries. Its average elevation is just 325 metres, against 870 metres for the continents as a whole. Yet flatness hides extremes. Deserts fill the interior while tropical rainforests crowd the coast, and the oldest zircon crystals on Earth, dating back 4.4 billion years, sit in the rock of Western Australia.

  Here is a country where about 95% of people live within 100 kilometres of the sea, against a world average of 39%. The ancestors of Aboriginal Australians arrived 50,000 to 65,000 years ago, building one of the oldest living cultures on the planet. By contrast, the federation called the Commonwealth of Australia is barely more than a century old, formed in 1901. How did a place this old in human terms become a nation this young? What kind of society fills a continent where the rivers barely reach the sea, and why does so much of its wildlife exist nowhere else?

• 2. A Name From Imagination

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  Terra Australis Incognita was a hypothetical southern continent that mapmakers imagined since ancient times, and from that Latin phrase the name Australia eventually came. Several 16th-century cartographers wrote the word on maps, but none of them meant the real place. The land itself went unnamed in European terms for centuries.

  The Dutch called the continent New Holland when they began visiting and mapping it in the 17th century. The explorer Matthew Flinders, who circumnavigated the continent in 1803, popularised the name Australia, though the published account of his voyage in 1814 still used Terra Australis. Lachlan Macquarie, Governor of New South Wales, officially recommended Australia to replace New Holland in December 1817.

  Government by paperwork did the rest. The British Admiralty adopted the name in 1824, the British Parliament used it in legislation in 1828, and the United Kingdom Hydrographic Office printed it in The Australia Directory of 1830. The federation's formal title, Commonwealth of Australia, arrived in the Commonwealth of Australia Constitution Act 1900. Colloquially the place answers to other names too, including Oz, Straya and Down Under.

• 3. The First Australians

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  The Madjedbebe rock shelter in Arnhem Land is possibly the oldest site showing human presence on the continent, and the Lake Mungo remains, dated to roughly 42,000 years ago, are the oldest human remains found. People crossed by land bridges and short sea voyages from what is now Southeast Asia. How many waves of migration contributed to these ancestors of modern Aboriginal Australians remains uncertain.

  At the time of first European contact, Aboriginal Australians belonged to a wide range of societies spread across at least 250 different language groups. Estimates of the population before British settlement range from 300,000 to 3 million. Stories of The Dreaming were kept alive through oral tradition, song, dance and painting, and certain groups practised fire-stick farming, fish farming and built semi-permanent shelters.

  Torres Strait Islanders, a distinct Melanesian people, first settled their islands at least 2,500 years ago. They were seafarers who lived from seasonal horticulture and the resources of their reefs and seas, and villages appeared on some islands by the 1300s. By the mid-18th century in northern Australia, Aboriginal groups had established trade and cross-cultural engagement with Makassan trepangers visiting from present-day Indonesia.

• 4. Convicts And Conflict

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  On the 26th of January 1788, the First Fleet under Captain Arthur Phillip arrived at Sydney Cove in Port Jackson, raised the Union Flag, and that date later became the national day. Most early settlers were convicts, transported for petty crimes and assigned as labourers or servants to free settlers. Once emancipated, they tended to integrate into colonial society.

  Willem Janszoon had reached this coast long before, his Dutch ship Duyfken making the first documented European landing in 1606. Abel Tasman's voyage of 1642 first reached Van Diemen's Land, and Captain James Cook mapped the east coast in 1770, naming it New South Wales and claiming it for Great Britain. The 1808 Rum Rebellion, carried out by officers of the New South Wales Corps, briefly installed a military junta.

  The indigenous population declined for 150 years after European settlement, mainly due to infectious disease. British colonial authorities signed no treaties with Aboriginal groups. As settlement expanded, tens of thousands of Indigenous people and thousands of settlers died in frontier conflicts that many historians argue included acts of genocide, and survivors were dispossessed of most of their land. From 1886, colonial governments began removing many Aboriginal children from their families, justified on grounds of child protection and forced assimilation.

• 5. Colonies Into A Nation

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  In 1813, Gregory Blaxland, William Lawson and William Wentworth crossed the Blue Mountains west of Sydney, opening the interior to European settlement. Separate colonies were then carved from New South Wales: Tasmania in 1825, South Australia in 1836, Victoria in 1851 and Queensland in 1859. South Australia and Victoria never accepted transported convicts, while Western Australia took them from 1850 to 1868.

  Gold rushes beginning in the early 1850s drew migrants from China, North America and continental Europe, along with civil unrest. That unrest peaked in 1854 when Ballarat miners launched the Eureka Rebellion against gold licence fees. The six colonies gained responsible government between 1855 and 1890, managing their own affairs while the Colonial Office in London kept control of matters like foreign affairs.

  On the 1st of January 1901, federation produced the Commonwealth of Australia under a new constitution, after a decade of conventions and referendums. Melbourne served as the temporary capital from 1901 to 1927 while Canberra was built, and the Australian Capital Territory was formed in 1911 for the future federal capital. Growing autonomy from Britain continued through the Statute of Westminster, adopted in 1942, and culminated in the Australia Act 1986.

• 6. Forged In War

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  Of the 324,000 Australians who served overseas in the First World War, about 60,000 were killed and another 152,000 wounded. Many regard the defeat of the Australian and New Zealand Army Corps at Gallipoli in 1915 as the baptism of fire that forged the new nation's identity. That campaign's beginning is commemorated each year on Anzac Day, a date that rivals Australia Day as the most important.

  Britain's defeat at Singapore in 1942, followed by the bombing of Darwin and other Japanese attacks on Australian soil, shook the country. A widespread belief took hold that a Japanese invasion was imminent. This drove a shift from the United Kingdom to the United States as Australia's principal ally, and since 1951 the two have been allied under the ANZUS treaty.

  After 1945, Australia encouraged a large wave of immigration from across Europe, calling the arrivals New Australians, and justified high intake with the slogan populate or perish. During the Cold War it joined the Korean War, the Malayan Emergency and the Vietnam War from 1962 to 1973. The Menzies Government tried unsuccessfully to ban the Communist Party of Australia, and the Labor Party suffered a bitter split in 1955.

• 7. Land Of Endemic Life

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  About 94% of Australia's amphibians, 93% of its reptiles and flowering plants, 69% of its mammals and 46% of its birds are endemic, found nowhere else, the result of long geographic isolation. The continent completely separated from Antarctica about 35 million years ago and drifted northwards. It is one of 17 megadiverse countries, with 168,386 named species on the Australian National Species List in January 2025.

  Two-thirds of the world's 330 species of marsupials are native to Australia. Nutrient-poor leaves favour creatures that feed on nectar and pollen, like the honey possum, while the koala specialises in eucalyptus leaves. Variable rainfall and poor soil favour low-energy animals such as snakes, lizards and hopping marsupials like the kangaroo and wallaby.

  Convergent evolution shaped many of these animals to resemble placental mammals on other continents. The extinct thylacine, or Tasmanian tiger, had similarities with the placental wolf, and marsupial moles echo the golden moles of Africa. Over the past two centuries Australia has lost more mammal species than any other continent, with 100 species listed as extinct or extinct in the wild, threatened by introduced animals like the feral cat and red fox.

• 8. The Modern Commonwealth

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  The population of Australia was estimated at 27,724,744 as of September 2025, making it the most populous Oceanian country and the 54th most populous in the world. Immigrants account for 30% of that population, the highest proportion among major Western nations, and at the 2021 census 3.8% identified as Indigenous. English is the de facto national language, though it has no legal status.

  A constitutional monarchy, parliamentary democracy and federation, Australia has kept a mostly unchanged constitution since 1901. Charles III reigns as King of Australia, represented by the governor-general, while Anthony Albanese became prime minister after elections on the 3rd of May 2025. The governor-general's reserve powers were most notably used in the dismissal of the Whitlam government in the constitutional crisis of 1975.

  The economy is highly developed and rich in natural resources, with China as the largest trading partner taking roughly 40% of exports. Australian achievements include atomic absorption spectroscopy, the essential components of Wi-Fi technology and the first commercially successful polymer banknote. Paterson's 1895 bush poem Waltzing Matilda is regarded as the unofficial national anthem, and the country is set to host the 2032 Olympic Games in Brisbane.