Evidence map›Paper›PMID 38307972›Full record

ArticleScientific reports2024

The invention of writing on Rapa Nui (Easter Island). New radiocarbon dates on the Rongorongo script.

Silvia Ferrara, Laura Tassoni, Bernd Kromer, Lukas Wacker, Michael Friedrich, Francesca Tonini, Lorenzo Lastilla, Roberta Ravanelli, Sahra Talamo

Abstract read
In one paragraph

Article in Scientific reports, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

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Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

2 citing papers in PubMed.

  1. Humans 40,000 y ago developed a system of conventional signs.Proceedings of the National Academy of Sciences of the United States of America · 2026
    Article
  2. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

9 authors.

Silvia FerraraDepartment of Classical Philology and Italian Studies, Alma Mater Studiorum, University of Bologna, Via Zamboni 32, 40126, Bologna, Italy. s.ferrara@unibo.it.
Laura TassoniDepartment of Chemistry G. Ciamician, Alma Mater Studiorum, University of Bologna, Via Selmi 2, 40126, Bologna, Italy.
Bernd KromerInstitute for Environmental Physics, University of Heidelberg, 69120, Heidelberg, Germany.
Lukas WackerLaboratory for Ion Beam Physics, ETH Zurich, 8093, Zurich, Switzerland.
Michael FriedrichHohenheim Gardens, University of Hohenheim, 70599, Stuttgart, Germany.
Francesca ToniniAlma Mater Studiorum, Università di Bologna-Ravenna Scientific Campus SCoRe, 48121, Ravenna, Italy.
Lorenzo LastillaDepartment of Computer, Control and Management Engineering Antonio Ruberti (DIAG), Sapienza University of Rome, 00185, Rome, Italy.
Roberta RavanelliDepartment of Civil, Constructional and Environmental Engineering (DICEA), Sapienza University of Rome, 00184, Rome, Italy.
Sahra TalamoDepartment of Chemistry G. Ciamician, Alma Mater Studiorum, University of Bologna, Via Selmi 2, 40126, Bologna, Italy. sahra.talamo@unibo.it.

Funding

European Research Council 771127European Research Council 803147
6 · The paper itself

Abstract

Placing the origin of an undeciphered script in time is crucial to understanding the invention of writing in human history. Rapa Nui, also known as Easter Island, developed a script, now engraved on fewer than 30 wooden objects, which is still undeciphered. Its origins are also obscure. Central to this issue is whether the script was invented before European travelers reached the island in the eighteenth century AD. Hence direct radiocarbon dating of the wood plays a fundamental role. Until now, only two tablets were directly dated, placing them in the nineteenth c. AD, which does not solve the question of independent invention. Here we radiocarbon-dated four Rongorongo tablets preserved in Rome, Italy. One specimen yielded a unique and secure mid-fifteenth c. date, while the others fall within the nineteenth c. AD. Our results suggest that the use of the script could be placed to a horizon that predates the arrival of external influence.

Indexed as

InventionsWoodHumansItalyPolynesiaWriting

Identifiers

PMID38307972
PMCPMC10837134

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.