Early Inhabitants & Landscapes
70,000 years ago – Migration via Sahul:
Modern humans migrated out of Africa around 60,000–70,000 years ago, and the earliest human settlement in Sahul (Australia + New Guinea) likely occurred around 65,000–50,000 years ago. Archaeological sites in Papua New Guinea and Australia support this. Humans first moved into the Torres Strait Islands via the ancient Sahul landmass, when New Guinea and Australia were joined. This same migration made Melanesia the earliest Pacific region settled by modern humans, as confirmed by archaeological evidence.
≈ 2,500 years ago
Austronesian-speaking peoples began reaching coastal Melanesia around 3,000–2,500 years ago, bringing new crops such as taro and yams, as well as outrigger canoes and advanced navigation techniques. Evidence of their arrival is seen in shared canoe designs, language borrowings, and the distinctive Lapita pottery culture, which spread across coastal Papua New Guinea and other parts of Melanesia through trade and migration
The prehistory of New Guinea dates back more than 50,000–60,000 years.
Fossil evidence and archaeological research confirm human presence in the New Guinea highlands by at least 50,000 years ago.
Origins – Africa to Southeast Asia to Sahul:
Modern humans originated in Africa approximately 60,000–70,000 years ago. From there, they migrated through Southeast Asia to Sahul.
7000 BCE – Highland agriculture:
Accurate. Evidence of early horticulture, irrigation, and domestication in the New Guinea highlands dates to ~7000 BCE, including taro, banana, yam, and sugarcane.
By about 7000 BCE, sedentary agriculture with extensive swamp drainage and irrigation was practiced in the highland basins, making it one of the few areas of original plant domestication in the world.
Sources:
O’Connell, J.F., Allen, J. (2015). The process, pattern, and pace of the peopling of Sahul: Out of Africa and into Oceania.
Current Anthropology, 56(S12), S395–S418.Summerhayes, G.R. et al. (2010). Human adaptation and plant use in highland New Guinea 49,000–44,000 years ago. Science, 330(6000), 78–81.
Kirch, P.V. (2017). On the Road of the Winds: An Archaeological History of the Pacific Islands Before European Contact. University of California Press.
Spriggs, M. (1997). The Island Melanesians. Blackwell.
O’Connell, J.F., Allen, J. (2015), Current Anthropology, 56(S12), S395–S418.
These ancient inhabitants of Papua New Guinea likely originated in Southeast Asia, with their ultimate origins tracing back to Africa 50,000 to 70,000 years ago. New Guinea (formerly known as such) was one of the first landmasses to be populated by modern humans after Africa and Eurasia. Its initial migration occurred at about the same time as Australia's, when both were connected as a single continent known as Sahul.
Denham, T. et al. (2003). Origins of Agriculture in Highland New Guinea. Antiquity, 77, 1–15.
Summerhayes, G.R. et al. (2010), Science, 330, 78–81.