
The Indigenous peoples of Australia, broadly defined as Aboriginal Australians and Torres Strait Islanders, have a long and complex history of settlement on the continent. Human habitation of Australia began with the migration of the ancestors of today's Aboriginal Australians from Southeast Asia via land bridges and short sea crossings. This migration occurred during a period of lowered sea levels, allowing for more accessible crossings between Asia and Australia. The first settlement is estimated to have taken place between 50,000 and 65,000 years ago, with some evidence suggesting an even earlier arrival. Over time, Aboriginal people spread throughout the continent, adapting to diverse environments and developing one of the oldest continuous cultures on Earth. The arrival of British settlers in 1788 marked a significant turning point, as it led to conflict, disease, and a drastic decline in the Indigenous population.
| Characteristics | Values |
|---|---|
| Migration from | Southeast Asia |
| Migration date | 50,000 to 65,000 years ago |
| Migration mode | Land bridges and short sea crossings |
| Population at the time of migration | 300,000 to 1 million |
| Population decline causes | Diseases, warfare, and other actions of British settlers |
| Population decline by | 50% due to smallpox |
| Population decline after British settlement | 30,000 by 1820 |
| Number of Aboriginal languages at the time of British settlement | Over 200 |
| Number of Aboriginal and Torres Strait Islander languages in 2022 | 167 |
| Number of deaths in frontier massacres from 1788 to 1930 | 8,270 |
| Number of deaths in the Myall Creek station massacre | 28 |
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What You'll Learn

Migration from Southeast Asia
The Indigenous population of Australia, comprising Aboriginal Australians and Torres Strait Islanders, has a long and complex history of migration and settlement. The ancestors of today's Aboriginal Australians migrated from what is now Southeast Asia to the Australian continent between 50,000 and 65,000 years ago. This migration occurred during a period of lowered sea levels, allowing for land bridges and short sea crossings between Asia and Australia. The earliest confirmed seafaring in the world took place during this period, with watercraft used for crossings exceeding 120 miles (200 km) between islands in modern-day Indonesia and Australia.
The Aboriginal people rapidly spread throughout the continent, adapting to diverse environments and surviving significant climate changes. They developed one of the oldest continuous cultures on Earth, with distinct languages, cultures, and belief structures. At the time of first European contact, the Aboriginal population is estimated to have been between 300,000 and 1 million people. They were complex hunter-gatherers with diverse economies and societies.
The Tasmanian Aboriginal population, for example, is believed to have crossed into Tasmania approximately 40,000 years ago via a land bridge connecting the island to the Australian mainland during the last glacial period. Genetic studies and Indigenous oral traditions suggest that the pre-contact population was significantly higher than previously estimated, with introduced diseases causing a substantial decline before and after European settlement.
The colonisation of Australia by Europeans in 1788 marked a drastic decline in the Indigenous population. Diseases such as smallpox, influenza, and measles, which the Aboriginal people had no resistance to, ravaged their communities. Additionally, random killings, punitive expeditions, and organised massacres further contributed to the population collapse. The assumption of European superiority and entitlement to the land, as described by scholars like Karskens, led to conflict with the traditional owners of the land.
The impact of colonisation disrupted traditional lifestyles and trading networks. For example, the introduction of steel axes replaced the stone axes traditionally used by older men, leading to a loss of authority within their communities. The exchange of new tools for work further altered social dynamics and economic practices.
Despite the challenges and losses faced by the Indigenous peoples of Australia, their resilience and deep connection to their land and culture have ensured their survival and ongoing presence in the country they have called home for thousands of years.
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Development of one of the world's oldest continuous cultures
The Indigenous history of Australia began 50,000 to 65,000 years ago when humans first populated the Australian continent. The ancestors of today's Aboriginal Australians migrated from what is now Southeast Asia, via land bridges and short sea crossings. By about 35,000 years ago, all of the continent had been occupied.
The Aboriginal people spread throughout the continent, adapting to diverse environments and climate change. They developed one of the world's oldest continuous cultures, with complex hunter-gatherer societies and diverse economies. At the time of first European contact, the Aboriginal population is estimated to have been between 300,000 and one million.
The British settlement of Australia, which began in 1788, had a devastating impact on Indigenous peoples. The settlers arrived with the assumption that British civilisation was superior and that they were entitled to the land. Diseases such as smallpox, which was unknown in Australia, ravaged the Indigenous population, and the settlers' cattle disrupted traditional food sources. Reprisal attacks and collective punishments were perpetrated by both colonists and Aboriginal groups, with mass killings of Indigenous people and the burning of crops and livestock by the Aboriginal people in resistance to the loss of their traditional land and resources.
The introduction of new economic products also disrupted traditional lifestyles. For example, steel axes replaced stone ones, resulting in a loss of authority for older men who had traditionally had access to them. The settlers and missionaries gave the new axes to younger people in exchange for work, further diminishing old trading networks.
Despite the devastating impact of colonisation, the Aboriginal people of Australia have maintained a strong connection to their land and culture, with many unique languages and beliefs still surviving today.
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Arrival of British settlers
Human habitation of the Australian continent began with the migration of the ancestors of today's Aboriginal Australians by land bridges and short sea crossings from what is now Southeast Asia. The Aboriginal people spread throughout the continent, adapting to diverse environments and climate change, developing one of the oldest continuous cultures on Earth. The history of Indigenous Australians began 50,000 to 65,000 years ago when humans first populated the Australian continent. At the time of British settlement, there were over 200 distinct languages spoken by the Indigenous Australians.
The arrival of the British settlers in Australia, also known as the First Fleet, occurred in January 1788 under the command of Captain Arthur Phillip. The fleet consisted of 11 vessels and more than a thousand settlers, including 778 convicts (192 women and 586 men). The colony of New South Wales was established with the arrival of the First Fleet, and its territory included all of Australia eastward of the meridian of 135° East. The settlers were instructed to live in amity and kindness with the Aboriginal population, but the consequences of British settlement soon became apparent.
The first notable consequence was an outbreak of smallpox in April 1789, which struck the Aboriginal people about Port Jackson. The disease killed about half of the Aboriginal population in the Sydney region and greatly reduced the Eora, Dharug, and Kuringgai populations. The outbreak is believed to have been inadvertently or deliberately spread by settlers, who had carried the virus along with other diseases like syphilis and influenza. The Indigenous population, isolated for thousands of years, had little resistance to these introduced diseases.
Following the outbreak, British settlement expanded rapidly, with an increase in the transportation of convicts and the growth of free settlers. From 1821 to 1840, 55,000 convicts arrived in New South Wales, and by 1830, free settlers and the locally born exceeded the convict population. The settlement's economy was based on farming, fishing, whaling, trade, and construction using convict labour. The expansion of the colony led to the displacement of the Aboriginal people, who lost access to their traditional lands and food resources.
The settlers' assumptions about the superiority of British civilisation and their entitlement to land also led to conflict with the traditional owners of the land. Reprisal attacks and collective punishments were perpetrated by both colonists and Aboriginal groups, with sustained Aboriginal attacks on settlers, burning of crops, and mass killing of livestock. The introduction of new economic products, like the steel axe, also disrupted traditional Aboriginal lifestyles and trading networks.
The arrival of British settlers had a devastating impact on the Indigenous population of Australia, with massacres, frontier conflicts, and competition over resources contributing to their decline. The colonisation process has been classified by scholars as comprising genocide against Indigenous Australians.
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Conflict with settlers and loss of land
The Australian frontier wars were a series of violent conflicts between Indigenous Australians and mostly British settlers during the colonial period. The first conflict took place in 1788, several months after the arrival of the First Fleet, and the last conflicts occurred in the early 20th century, with some occurring as late as 1934. Conflict emerged as a series of violent engagements and massacres across the continent.
The first frontier war began in 1795 when British settlers established farms along the Hawkesbury River west of Sydney. Local Darug people raided farms until Governor Macquarie dispatched a detachment of the 46th Regiment of Foot in 1816, ending the conflict by killing 14 Indigenous Australians in an ambush on their campsite. Conflict also occurred when the British expanded into inland New South Wales. War took place across the Liverpool Plains, with 16 British and up to 500 Indigenous Australians being killed between 1832 and 1838. The violence in this region included several massacres of Indigenous people, including the Waterloo Creek massacre and the Myall Creek massacres in 1838.
The British settlement was initially planned to be a self-sufficient penal colony based on agriculture. Conflict broke out between the settlers and the traditional owners of the land because of the settlers' assumptions about the superiority of British civilisation and their entitlement to land which they had "improved" through building and cultivation. The Indigenous people had a deep spiritual connection to their land, and their complex social systems were expressed through this attachment. The coming of Europeans led to the dispossession of land, the destruction of cultures, and the loss of languages, ceremonies, and songs.
The Australian Museum notes that the history of these battles is not often told, but they involved hundreds of incidents and thousands of people. Estimates of the number of people killed in the fighting vary considerably. Broome estimates the total death toll from settler-Aboriginal conflict between 1788 and 1928 as 1,700 settlers and 17–20,000 Aboriginal people. Reynolds suggests a higher "guesstimate" of 3,000 settlers and up to 30,000 Aboriginals killed. A project team at the University of Newcastle, Australia, has reached a preliminary estimate of 8,270 Aboriginal deaths in frontier massacres from 1788 to 1930.
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Population collapse due to disease
The history of Indigenous Australians dates back 50,000 to 65,000 years, when humans first populated the Australian continent. The Indigenous population before European settlement is estimated to have been small, with estimates ranging from 318,000 to over 3,000,000 people. The Indigenous population of Tasmania before European arrival is estimated to have been between 3,000 and 15,000 people, although genetic studies and Indigenous oral traditions suggest that the pre-contact population was significantly higher and that it declined due to diseases introduced by British and American sealers.
The arrival of European settlers in 1788 brought infectious diseases that devastated the Indigenous population, who had been isolated for thousands of years from the diseases of Europe and Asia. Smallpox, syphilis, and influenza spread among the Indigenous people, who had no resistance to these viruses. In less than a year, over half of the Indigenous population living in the Sydney Basin had died from smallpox, and their vibrant clans fell silent. This epidemic, which lasted for three years, was the first apparent consequence of British settlement and caused a population collapse.
The Indigenous people who survived the smallpox epidemic continued to face challenges. Their traditional food sources, such as murnong, kangaroo, and the Australian brushturkey, were replaced by cattle. The introduction of new economic products, such as the steel axe, disrupted traditional trading networks and led to a loss of authority for older men. The British also used alcohol as a means of trade, further shattering traditional social and family structures.
The impact of diseases introduced by European settlers extended beyond the initial population collapse. In 2018, Indigenous Australians lost 240,000 years of healthy life due to illness, injury, and premature death. The rate of disease burden among Indigenous Australians was more than double that of non-Indigenous Australians in the same year. Leading causes of the gap in disease burden between the two groups include coronary heart disease, diabetes, and chronic obstructive pulmonary disease.
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Frequently asked questions
Indigenous Australians have been on the continent for 50,000 to 65,000 years. They are believed to have migrated from Asia via Southeast Asia, using land bridges and short sea crossings.
Estimates of the Indigenous population before British colonisation range from 300,000 to 1 million. They were complex hunter-gatherers with diverse economies and societies.
The British settlers brought new infectious diseases, such as smallpox, influenza, and measles, which devastated the Indigenous population as they had no resistance. There were also massacres, conflict over resources, and competition from new animals such as cattle, which disrupted traditional lifestyles and food sources.







































