Recent research has identified the oldest known rock art, dated at over 67,000 years, on the Indonesian island of Sulawesi. This discovery provides significant insights into early human migrations, particularly suggesting a potential link between ancient populations and the ancestors of Aboriginal Australians. The findings were published in the journal Nature.
The newly discovered rock art features a faint outline resembling a human hand, and it was found in the Liang Metanduno cave. According to study author Maxime Aubert from Griffith University, this stencil predates other known cave paintings in the region by approximately 16,600 years, marking a pivotal moment in the understanding of early artistic expression. Aubert noted, “It is now evident from our new phase of research that Sulawesi was home to one of the world’s richest and most longstanding artistic cultures.”
Sulawesi has long been recognized as a critical site in human history, not only for its artistic heritage but also for its role in human migration. Prior research has highlighted the island’s significance as a stepping stone for Homo sapiens migrating from Asia to Sahul, the ancient landmass that connected Australia, New Guinea, and Tasmania.
The recent study focused on various rock art forms, including stencils of human hands. The oldest of these, discovered in the Liang Metanduno cave on the island of Muna, has a claw-like appearance. Utilizing advanced techniques such as uranium-series dating and mineral deposit analysis, researchers confirmed that this stencil dates back to around 67,800 years ago and is attributed to an artist belonging to a population closely related to the ancestors of modern Australians.
Adhi Agus Oktaviana from Indonesia’s National Research and Innovation Agency emphasized the implications of the discovery, stating, “It is very likely that the people who made these paintings in Sulawesi were part of the broader population that would later spread through the region and ultimately reach Australia.” This aligns with the notion that the ancestors of the First Australians may have arrived in Sahul by around 65,000 years ago.
Previously, scholarly debate had centered around two timelines for the arrival of Homo sapiens in Sahul: the “long chronology” at around 65,000 years and the “short chronology” at approximately 50,000 years. Two island-hopping routes were proposed for their migration, with the northern route passing through Sulawesi and the southern route through Timor.
The findings from the Liang Metanduno cave indicate a long-standing human presence, with some artworks showing evidence of continuous occupation for over 35,000 years. Study author Renaud Joannes-Boyau from the Geoarchaeology and Archaeometry Research Group at Southern Cross University remarked, “With the dating of this extremely ancient rock art in Sulawesi, we now have the oldest direct evidence for the presence of modern humans along this northern migration corridor into Sahul.”
Looking ahead, researchers aim to further investigate human art and migration patterns across other Indonesian islands, which may shed light on the routes taken by early humans. Aubert highlighted the archaeological significance of these islands, stating, “These discoveries underscore the archaeological importance of the many other Indonesian islands between Sulawesi and New Guinea.”
The revelations from this study not only enrich the narrative of human artistic development but also enhance the understanding of our ancestors’ movements across ancient landscapes. As research continues, the legacy of these findings will likely reshape the historical context of human migration and cultural expression in Southeast Asia.
