A hand stencil discovered in a cave on Muna Island, southeastern Sulawesi, Indonesia, has been dated to at least 67,800 years ago, positioning it as potentially the oldest known rock art globally. This discovery provides insights into early human artistic expression and migration patterns, while also prompting discussion among researchers regarding the identity of its creators.
Discovery and Dating
The ancient hand stencil was found in the Liang Metanduno cave on Muna Island, where it had previously gone unnoticed among more recent paintings. Researchers determined its minimum age by analyzing overlying mineral crusts and tiny calcite deposits that had formed over the artwork. This dating places the Indonesian stencil approximately 1,100 years earlier than the previous record holder, a hand stencil located in Spain.
Artistic Technique and Features
The artwork was created using a spray-painting technique. An artist likely pressed a hand against the cave wall and then blew or spat pigment, such as ochre mixed with water, around it to leave a negative outline. The red outline of the hand features fingers that appear to have been intentionally reworked, described by some researchers as creating a "claw-like" or "pointy" motif. Those who interpret this modification as deliberate suggest it indicates an early instance of symbolic imagination and creative transformation, seen as a distinct human characteristic. However, one expert has questioned whether these features were accidental or intentional.
Implications for Human Art and Migration
The discovery challenges theories suggesting that art and abstract thinking originated suddenly in Ice Age Europe. Instead, it supports the view that creativity was an inherent trait of Homo sapiens, with evidence tracing back potentially to Africa. This find is seen as making a Eurocentric argument for the origin of modern human behaviors, including narrative art, more difficult to sustain, as such behaviors are now observed in Indonesia. The existence of this artwork, along with previous finds, suggests that the practice of creating images on cave walls was widespread and deeply embedded in regional cultures of Indonesia, rather than being a localized experiment.
Additionally, archaeologists state the discovery offers further insight into the timeline and methods of human settlement in Australia. The stencil is considered likely the work of ancestors of Indigenous Australians, suggesting a northern migration route that crossed Sulawesi. While the exact timing of human arrival in Sahul (the ancient landmass connecting Australia, New Guinea, and Tasmania) is debated, the rock art supports evidence that northern Australia was settled at least 65,000 years ago. During that period, sea levels were lower, creating land bridges, although island hopping remained necessary for regional dispersal.
Scientific Perspectives and Attribution Debate
Fieldwork for this discovery was led by Professors Maxime Aubert and Adam Brumm, archaeologists at Griffith University in Queensland. Aubert noted that dating rock art provides a view into the past and the minds of ancient people.
The authors of the study propose that the complexity of the hand stencil, particularly its modifications, is attributable to Homo sapiens. However, they acknowledge that other human species cannot be definitively ruled out. Professor Paul Pettitt of Durham University, who worked on Spanish cave markings, suggested that attributing such complexity solely to Homo sapiens might be an over-interpretation. He noted that Neanderthals also modified hand stencils, citing ochre wall markings and hand stencils in Spanish caves dated to at least 64,000 years ago, which are attributed to Neanderthals. Denisovans, another ancient human group, also occupied vast areas of Asia, reaching as far as Indonesia, leading to suggestions they could also have created the artwork.
Broader Context of Indonesian Rock Art
The Liang Metanduno cave shows evidence of continuous artistic activity spanning at least 35,000 years, with some younger paintings found on the same panel dating to approximately 20,000 years ago. This latest finding follows previous discoveries in Sulawesi, including hand stencils and animal figures from at least 40,000 years ago, a hunting scene from at least 44,000 years ago, and a narrative painting depicting a pig and human dated to at least 51,200 years ago. Each subsequent discovery in the region has contributed to pushing back the timeline for sophisticated image-making.