Damon Mcknight
The first humans are thought to have arrived in Australia around 65,000 years ago, marking a significant turning point in our evolution. This date has been debated for decades, with previous estimates suggesting human arrival in Australia between 47,000 and 60,000 years ago. The journey to Australia demonstrates the advanced capabilities of these early humans, who likely sailed east from Borneo to Sulawesi and then island-hopped to New Guinea before continuing their journey by foot. This theory, proposed by Joseph Birdsell in 1977, suggests two possible routes: a northern route through Sulawesi to West Papua, and a southern route through Timor ending with a sea crossing to the Northern Territory or Kimberley coastline.
| Characteristics | Values |
|---|---|
| Migration Period | Between 50,000 and 65,000 years ago |
| Migration Route | From Borneo to Sulawesi, through smaller islands to Misool Island, and then to New Guinea |
| Migration Type | Land bridges and short sea crossings |
| Migrants | Ancestors of modern Aboriginal Australians |
| Motive | Deliberate settlement or accidental arrival due to monsoon winds |
| Transport | Small boats, canoes, or rafts made of bamboo |
| Genetic Influence | Interbreeding with Denisovans, resulting in 3-5% of Denisovan DNA in Melanesians and Aboriginal Australians |
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What You'll Learn
- Humans likely migrated to Australia from Southeast Asia
- They may have sailed from Borneo to Sulawesi and island-hopped to New Guinea
- They may have crossed from Timor when the sea level was low
- They may have walked from New Guinea when it was connected by land to Australia
- They may have used watercraft to cross narrow straits
Humans likely migrated to Australia from Southeast Asia
Modern humans (Homo sapiens) reached Asia by 70,000 years ago and then moved down through Southeast Asia and into Australia. However, they were not the first species of humans to inhabit this region, as Homo erectus had already been in Asia for at least 1.5 million years. It is possible that these two species coexisted, as some dates suggest that Homo erectus may have survived in Indonesia until as recently as 50,000 years ago. However, no remains of Homo erectus have ever been found in Australia.
The prehistory of Australia refers to the period between the first human habitation of the continent and the colonisation of Australia in 1788, which marks the start of consistent written documentation. This period is estimated to have begun between 50,000 and 65,000 years ago, with human occupation of the Australian coast taking place around this time. The earliest dates for human occupation come from sites in the Northern Territory, such as the Madjedbebe rock shelter in Arnhem Land, which has a widely accepted date of about 50,000 years old. Archaeological evidence also indicates human habitation at the upper Swan River in Western Australia by about 40,000 years ago.
It is believed that the ancestors of modern Aboriginal Australians migrated to Australia from Southeast Asia by crossing land bridges and making short sea crossings during the Pleistocene epoch when sea levels were much lower than they are today. One theory suggests that the first humans to reach Australia sailed east from Borneo to Sulawesi and then island-hopped to New Guinea, before walking down through what is now Cape York to the rest of the continent. This theory is supported by the fact that New Guinea was connected to Australia by land until about 10,000 years ago.
Another theory proposes that the first humans arrived in Australia by crossing the water from Timor to the Australian continental shelf when the sea level was low. This crossing would have been about 90 kilometres, and although it is considered a remarkable maritime achievement, it is argued to be less likely than first landing in New Guinea, as the final crossing distance to the continental shelf was more than 80 kilometres. Additionally, it was once thought that the Australian landmass was not visible from any Indonesian island, but recent computer technology and ocean floor data have suggested that now-submerged islands off the Australian continental shelf may have been visible from Timor.
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They may have sailed from Borneo to Sulawesi and island-hopped to New Guinea
Modern humans had reached Asia by 70,000 years ago before moving down through Southeast Asia and into Australia. The earliest dates for human occupation of Australia come from sites in the Northern Territory. The Madjedbebe rock shelter in Arnhem Land has a widely accepted date of about 50,000 years old, though some reports suggest a date of around 65,000 years old.
The first people to arrive in Australia likely sailed east from Borneo to Sulawesi and island-hopped to New Guinea. This theory was put forward in a study led by Australian National University PhD candidate Shimona Kealy, published in the Journal of Human Evolution. Kealy modelled the most likely route from Southeast Asia to the Australian mainland based on which pathway would have required the least expenditure of energy and resources.
Kealy's modelling identified the least-cost route as going from Borneo to Sulawesi and through a series of smaller islands to Misool Island off the coast of West Papua. New Guinea was connected by land to Australia until about 10,000 years ago, meaning the first people could have walked down through what is now Cape York to the rest of the continent. The visibility and shorter distances between the islands made this route much more feasible for travel.
The northern route identified by Kealy goes through Sulawesi to West Papua, while the southern route goes through Timor and ends with a significant sea crossing to the Northern Territory or Kimberley coastline. Archeologists have found a number of sites in East Timor that show proof of human occupation, but none are older than 45,000 years old. Artefacts from the oldest known site in Australia, a rock shelter at Madjedbebe in the Jabiluka mining lease within the Kakadu national park, on Mirarr country, have been dated at 65,000 years old.
The settlement of Australia is the first unequivocal evidence of a major sea crossing and rates as one of the greatest achievements of early humans.
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They may have crossed from Timor when the sea level was low
Modern humans reached Asia by 70,000 years ago before moving down through Southeast Asia and into Australia. However, the earliest evidence of humans in Australia has been estimated to be between 50,000 and 65,000 years ago. There is much discussion among archaeologists regarding the route taken by the first migrants to Australia, who are widely considered to be the ancestors of modern Aboriginal peoples.
One theory suggests that the first humans to arrive in Australia came from the area that is now Timor. To get to Australia, they would have had to cross about 90 to 150 kilometres of open water, which would have been a remarkable maritime achievement. During times of low sea levels, the travelling distance between Timor and Sahul (a single landmass formed by Australia and New Guinea) would have been reduced to about 90 kilometres. Present sea levels are higher than they have been for most of the last million years. When water is locked up in the polar ice caps during an Ice Age, the sea level drops. As a result, during an Ice Age, it would have been possible to cross from Timor to Sahul.
In his 2013 book, *First Footprints: The Epic Story of the First Australians*, Scott Cane writes that the first humans may have arrived in Australia around 70,000 years ago, when the sea level was low. At that time, they could have crossed the water from Timor. If they came later, around 50,000 years ago, they would have likely taken a different route through the Moluccas to New Guinea. Given that the likely landfall regions have been underwater for the last 15,000 years, it is unlikely that the timing of the first crossing will ever be established with certainty.
The first humans to reach Australia likely island-hopped to New Guinea and then walked down through what is now Cape York to the rest of the continent. Shimona Kealy, a PhD candidate at the Australian National University, modelled the most likely route from Southeast Asia to Australia. According to her research, the first people sailed east from Borneo to Sulawesi and island-hopped to New Guinea.
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They may have walked from New Guinea when it was connected by land to Australia
The arrival of the first humans in Australia is a matter of conjecture. One theory is that they may have sailed from Borneo to Sulawesi and island-hopped to New Guinea, before walking to Australia. This theory is supported by the findings of a study published in the Journal of Human Evolution, which modelled the most likely route from Southeast Asia to Australia. The study, led by Australian National University PhD candidate Shimona Kealy, found that the shorter distances and shore-to-shore visibility between the islands made this route more feasible for travel.
Kealy's modelling also took into account factors such as the changes in coastline and sea level over time, as well as the possibility of traversing over or around hills, to determine the most probable path of travel. The research suggests that New Guinea was connected to Australia by land until about 10,000 years ago, allowing people to walk down through what is now Cape York to the rest of the continent. This route is further supported by the fact that the islands across northern Indonesia are relatively close together, making it easier for early humans to voyage from one island to the next.
The migration of humans to Australia is believed to have taken place during the closing stages of the Pleistocene epoch, when sea levels were much lower than they are today. Repeated episodes of extended glaciation during this time resulted in decreases in sea levels by more than 100 metres in Australasia. The lower sea levels would have reduced the distance between Timor and Sahul to about 90 kilometres, making it more feasible for humans to expand into new areas.
While the exact timing of human arrival in Australia is uncertain, most evidence suggests that it occurred between 50,000 and 65,000 years ago. This estimate is based on various sites in Australia that provide evidence of human occupation during this time period, including the Madjedbebe rock shelter in Arnhem Land, which has been dated to about 50,000 years ago. However, some reports and studies have suggested dates closer to 65,000 years ago, with one study using archaeobotany to date evidence of human habitation at Karnatukul in Western Australia to around 50,000 years ago.
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They may have used watercraft to cross narrow straits
Humans likely arrived in Australia by sailing from Borneo to Sulawesi and island-hopping to New Guinea, which was connected to the Australian mainland by a land bridge. This route, known as Birdsell's northern route, is supported by archaeological evidence and modelling of the most likely path of travel based on factors like visibility and shore-to-shore distances.
During the Pleistocene epoch, sea levels were much lower, and Australia and New Guinea formed a single landmass known as Sahul, connected by an extensive land bridge across the Arafura Sea, Gulf of Carpentaria, and Torres Strait. While humans likely crossed narrow straits using watercraft, the specific type of boat or raft used remains unknown due to the lack of preservation of ancient boats. However, rafts made of bamboo, a common material in Asia, are considered the most likely suggestion.
The earliest evidence of human occupation in Australia is dated to around 65,000 years ago, although some reports suggest dates as early as 70,000 years ago. These early humans were likely the ancestors of modern Aboriginal peoples, and their migration occurred during a period of glaciation, when sea levels were lower, reducing the travelling distance between landmasses.
While the exact motive and circumstances of the first Australians' arrival remain a matter for conjecture, it may have been a deliberate attempt to settle new territories or an accidental result of being caught in monsoon winds. The settlement of Australia stands as one of the greatest achievements of early humans, demonstrating their adaptability and determination to explore and expand into new regions.
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Frequently asked questions
Humans first arrived in Australia around 65,000 years ago. This conclusion was reached after researchers found and dated artifacts in northern Australia.
The first humans to reach Australia likely sailed east from Borneo to Sulawesi and island-hopped to New Guinea before walking into Australia. This northern route was theorised by US anthropologist Joseph Birdsell in 1977.
The climate in northern Australia was wetter and colder when human ancestors arrived.
