Researchers Dated Rongorongo Tablet to Pre-Contact Era
Radiocarbon dating of an artifact from Rapa Nui reveals the wood was felled before European arrival.
Updated on Sept. 29, 2026 in Botany
Live Poll
Do you believe new archaeological evidence should change how we view independent human development?
Researchers have determined through radiocarbon testing that a wooden tablet inscribed with the undeciphered Rongorongo script dates to between 1493 and 1509. This finding challenges timelines regarding the script, which was not documented by Europeans until 1864.
Why it matters
Determining the age of these rare artifacts is critical to establishing whether the Rongorongo writing system developed independently on Rapa Nui. The study addresses long-standing questions about the cultural history of the region prior to European contact in the 1720s.
Analysis of the material identified the wood as Podocarpus latifolius, a species native to Africa and South America. Researchers examined four tablets currently held in Rome from the fewer than 30 total inscribed objects known to survive today.
The players
Eugene Eyraud
The European who provided the first documented record of the Rongorongo script in 1864.
The details
Researchers utilized radiocarbon testing—a method that measures the decay of carbon isotopes to determine the age of organic material—to date the wooden tablets. The discovery that the wood originated from a species not native to Rapa Nui raises questions about the procurement of materials for these inscriptions. The script itself, which ceased usage in the 19th century, remains one of the world's few undeciphered writing systems.
Timeline
1493-1509: The wood used for the tablet was felled.
1720s: Europeans made their first recorded arrival on Rapa Nui.
1864: Eugene Eyraud provided the first European documentation of the script.
19th century: Usage of the Rongorongo script concluded.
The Tech Race
This analysis represents a significant milestone in the effort to decode the surviving corpus of fewer than 30 Rongorongo objects. It provides a baseline for comparing the age of these artifacts against the timeline of human arrival and cultural development on Rapa Nui.
This research provides historians and linguists with a more accurate timeline for studying the origins of isolated writing systems. Future scientific efforts will aim to test the remaining known tablets to refine the chronology of Rapa Nui culture.
The takeaway
The discovery suggests that the development of this unique script may predate initial European contact by centuries. Watch for upcoming research as the team aims to subject all remaining Rongorongo tablets to radiocarbon dating to confirm this timeline.
What happens next
Researchers plan to conduct further testing on the remaining tablets in the collection to confirm the current findings and build a broader chronological framework.
Further reading
For more on the intersection of materials science and historical artifacts, visit the Botany archive.
Source note: This article includes information reported by Economic Times.
Live Poll
Do you believe new archaeological evidence should change how we view independent human development?
