30,000-year-old Ice Age civilisation discovered in Indonesia
Share this on

30,000-year-old Ice Age civilisation discovered in Indonesia

A CAVE dig in Indonesia has unearthed a unique collection of prehistoric ornaments and artworks that date back, in some instances, to at least 30,000 years ago. The site is thought to have been used by some of the world’s earliest cave artists.

Published today, our findings challenge the long-held view that hunter-gatherer communities in the Pleistocene (“Ice Age”) of Southeast Asia were culturally impoverished.

They also imply the spiritual lives of humans transformed as they encountered previously unknown species on the journey from Asia to Australia.

SEE ALSO: Two new bird species discovered in Borneo

The human journey beyond Asia

Modern humans had colonised Australia by 50,000 years ago. It was a journey that required people crossing by boat from continental Eurasia into Wallacea, a vast swathe of island chains and atolls spanning the ocean gap between mainland Asia and Australia.

image-20170403-19455-1uqs94r

Wallacea, the zone of oceanic islands positioned east of the Wallace Line, one of the world’s major biogeographical boundaries, and lying between the continental regions of Asia and Australia-New Guinea. Source: Adam Brumm, author-provided.

Archaeologists have long speculated about the cultural lives of the first Homo sapiens to enter Wallacea, as part of the great movement of our species out of Africa.

Some have argued human culture in the Late Pleistocene attained a high level of complexity as Homo sapiens spread into Europe and as far east as India. Thereafter, culture is thought to have declined in sophistication as people ventured into the tropics of Southeast Asia and Wallacea.

But new research in Wallacea is steadily dismantling this view.

New findings from ‘Ice Age’ Sulawesi

In the latest addition to this rash of discoveries, we describe a suite of previously undocumented symbolic artefacts excavated from a limestone cavern on Sulawesi, the largest island in Wallacea.

The artefacts were dated using a range of methods to between 30,000 and 22,000 years ago. They include disc-shaped beads made from the tooth of a babirusa, a primitive pig found only on Sulawesi, and a “pendant” fashioned from the finger bone of a bear cuscus, a large possum-like creature also unique to Sulawesi.

image-20170403-19420-17ir5sc

Prehistoric ornaments excavated from the Sulawesi cave site Leang Bulu Bettue. Source: Michelle Langley and Adam Brumm. Bear cuscus bone image Source: Luke Marsden. Bear cuscus and babirusa Source: Shutterstock. Author-provided.

Also recovered were stone tools inscribed with crosses, leaf-like motifs and other geometric patterns, the meaning of which is obscure.

Further evidence for symbolic culture was shown by the abundant traces of rock art production gleaned from the cave excavations. They include used ochre pieces, ochre stains on tools and a bone tube that may have been an “airbrush” for creating stencil art.

image-20170403-19462-1mp63d0

Hollow bone tube (top) with red and black pigments, made from the long bone of a bear cuscus, may have been used as an ‘air-brush’ to create human hand stencils on rock surfaces (bottom) (Top) Source: Michelle Langley (bottom) Source: Yinika Perston, Author provided.

All are from deposits the same age as dated cave paintings in the surrounding limestone hills.

It is very unusual to uncover buried evidence for symbolic activity in the same places where Ice Age rock art is found. Prior to this research, it also remained uncertain whether or not the Sulawesi cave artists adorned themselves with ornaments, or even if their art extended beyond rock painting.

image-20170403-19417-1l8kmyn

A drilled and perforated finger bone from a bear cuscus. The hole at one end of the bone formerly bore a string, while wear marks on the ornament show that it repeatedly rubbed against human skin or clothing. These suggest the perforated bone was suspended for use as a ‘pendant’ or similar jewellery object. Source: Luke Marsden, author-provided.

Early art and ornaments from Wallacea

Previous cave excavations in Timor-Leste (East Timor) have unearthed 42,000-year-old shells used as “jewellery”, as reported in 2016. In 2014, archaeologists announced cave art from Sulawesi is among the oldest surviving on the planet.

At one cave, a depiction of a human hand is at least 40,000 years old. It was made by someone pressing their palm and fingers flat against the ceiling and spraying red paint around them.

Next to the hand stencil is a painting of a babirusa that was created at least 35,400 years ago.

These artworks are compatible in age with the spectacular cave paintings of rhinos, mammoths and other animals from France and Spain, a region long thought to be the birthplace of modern artistic culture.

Some prehistorians have even suggested  the presence of 40,000-year-old art in Indonesia means rock art probably arose in Africa well before our species set foot in Europe, although an Asian origin is also conceivable.

Based on the new evidence emerging from Timor and Sulawesi, it now appears the story about early humans in Wallacea being less culturally advanced than people elsewhere, especially Palaeolithic Europeans, is wrong.

The weird world of Wallacea

Owing to the unique biogeography of Wallacea, the first modern humans to enter this archipelago would have encountered a strangely exotic world filled with animals and plants they had never imagined existed.

Surrounded by deep ocean troughs, the roughly 2,000 islands of Wallacea are extremely difficult for non-flying organisms to reach. Because of their inaccessibility, these islands tend to be inhabited by relatively few land mammals. Endemic lineages would have arisen on many islands as a result of this evolutionary isolation.

Sulawesi is the weirdest island of them all. Essentially all of the island’s terrestrial mammals, except for bats, occur nowhere else on earth. Sulawesi was probably where human beings first laid eyes on marsupials (cuscuses).

SEE ALSO: Indonesian farmers find missing friend after cutting open python

The discovery of ornaments manufactured from the bones and teeth of babirusas and bear cuscuses – two of Sulawesi’s most characteristic endemic species – implies that the symbolic world of the newcomers changed to incorporate these never-before-seen creatures.

Our excavations have unearthed thousands of animal bones and teeth, but only a tiny fraction is from babirusas. The near-absence of babirusas from the cave inhabitants’ diet, coupled with the portrayal of these animals in their art, and use of their body parts as “jewellery”, suggests these rare and elusive creatures had acquired particular symbolic value in Ice Age human culture.

Perhaps the first Sulawesians felt a strong spiritual connection with these odd-looking mammals.

This ‘social interaction’ with the novel species of Wallacea is likely to have been essential to the initial human colonisation of Australia with its unprecedentedly rich communities of endemic faunas and floras, including many species of megafauna that are now extinct.

In fact, elements of the complex human-animal spiritual relationships that characterise Aboriginal cultures of Australia could well have their roots in the initial passage of people through Wallacea and the first human experiences of the curious animal life in this region.
count

By Adam Brumm, Principal Research Fellow, Griffith University and Michelle Langley, DECRA Research Fellow, Griffith University

** This article originally appeared on The Conversation. Read the original article.