4,000-year-old rock painting in Indonesia offers clues to one of humanity’s greatest migrations
The age of the rock art at Wetar means it could be one of the earliest places outside of Taiwan to document the Austronesian migration.
Around 4,200 years ago, a significant migration occurred as people from what is now Taiwan embarked on journeys to islands scattered across the Indian and Pacific Oceans. This mass movement created the largest-scale language dispersal in prehistory, with the Austronesian language family becoming widely spoken across Malaysia, Indonesia, Madagascar, and the Pacific Islands.
The Austronesians were known for their exceptional seafaring skills, primarily due to their use of outrigger canoes. However, the driving force behind this migration remains a subject of debate. While some theories suggest that advancements in rice farming and storage may have encouraged population growth and migration, others propose that a shared cultural identity could have been a powerful motivator.
Recent archaeological findings in southeastern Indonesia provide intriguing evidence to support the latter theory.
In the 1990s, anthropologist Chris Ballard identified a distinctive style of red rock paintings, known as the Austronesian Painting Tradition (APT), in areas where Austronesian languages are spoken today. These paintings featured small human figures often depicted wielding weapons or sailing on canoes, as well as geometric sun rays composed of concentric circles with radiating spokes.
The APT's age had long remained unknown due to the challenges of dating rock art. However, in 2023, an archaeological investigation was conducted on the island of Wetar in southeastern Indonesia. During this survey, a rock overhang called Huknaur was discovered, adorned with APT art. Excavations in 2024 revealed a stone plaque painted with the characteristic APT sun ray motif, dated to approximately 4,000 years ago.
The APT's sun ray motif matches designs documented on cliff walls across the APT region, including the Philippines, Timor-Leste, and southeastern Indonesia. Historical documents also indicate that these sun ray symbols were applied to boat prows in the region, serving as protective symbols and clan identity markers. This connection between the APT's visual motifs and the Austronesians' seafaring capabilities suggests that the shared cultural identity represented by the paintings may have played a crucial role in maintaining the Austronesian identity and facilitating their remarkable oceanic migrations.
Written by urgent.news from The Conversation AU's reporting — not their text. Machine-written — may contain errors; check the original before relying on it.
