# Rongorongo, the glyph system of Easter Island, is a genuine lost writing system whose meaning is recoverable and, some say, already cracked **No verdict.** The objects are real and the mystery is genuine: roughly two dozen wooden pieces from Rapa Nui (Easter Island), carrying about 15,000 carved glyphs in a distinctive reverse-boustrophedon layout, have resisted reading for more than 150 years. What remains unresolved is the larger claim rated here: that rongorongo is a fully developed writing system encoding the spoken Rapanui language, and that its lost meaning can be recovered (indeed, that it has been partly deciphered). On the evidence, that claim is unsettled. No proposed decipherment is accepted by specialists, only a single passage (a lunar calendar on the Mamari tablet) has a function scholars agree on, and even it cannot actually be read; yet nothing rules out that the signs are true writing, and honest researchers simply do not yet know. Category: Lost History & Ancient Mysteries · Era: 15th–19th c. (script in use); 1860s (first recorded by outsiders) · First circulated: The tablets were first reported to outsiders in 1864 by the French missionary Eugene Eyraud; the modern framing of rongorongo as a great undeciphered ancient script took shape across the 20th century, through Thomas Barthel's 1958 catalogue and a long series of failed decipherment claims · Believed by: A broad popular audience drawn to Easter Island's mystique, alongside a small community of linguists and epigraphers who take the script seriously as an open research problem rather than a solved one URL: https://theconspiratory.com/theory/rongorongo ## Summary On Rapa Nui, the remote Pacific island famous for its moai statues, a handful of wooden tablets and objects survive carved with tiny, precise glyphs: stylized humans, birds, fish, plants, and abstract shapes, set out in a rare reverse-boustrophedon pattern where each line is read in the opposite direction and flipped upside down. The islanders called such inscribed boards kohau rongorongo. By the time Europeans grew curious in the 1860s, the Peruvian slave raids and epidemics of 1862 to 1863 had shattered the population and carried off the class of trained scribes and chanters, so no reliable reader remained. Roughly 26 objects and about 15,000 legible glyphs are all that is left. This case file keeps two things apart: a real, undeciphered sign system, genuinely old, genuinely lost; and the claim it rates, that it is full writing whose meaning is recoverable, or already recovered. No accepted decipherment exists, so that claim stays open: a live scholarly question, not a settled one, and not a hoax. ## The claim That rongorongo is a genuine, fully developed writing system that encodes the spoken Rapanui language in the same way an alphabet or syllabary would; that its meaning was lost only through catastrophe and neglect rather than because it was never true writing; and that this meaning is recoverable, with some proponents holding that parts of it have already been correctly deciphered. ## Origin and timeline - c. 1500: Rapa Nui (Easter Island) is a settled Polynesian society. Wood from one of four rongorongo tablets held in Rome was later radiocarbon-dated to roughly 1493 to 1509, which, if the carving is close in age to the wood, would place the script well before any recorded outside contact. - 1722: The Dutch navigator Jacob Roggeveen makes the first recorded European landfall on Easter Island. Neither he nor the Spanish expedition of 1770 leaves any clear description of inscribed tablets, a silence later cited by both sides of the age debate. - 1862-1863: Peruvian slave raids, followed by smallpox and other epidemics, collapse the island's population from thousands to roughly a hundred survivors. Those taken or killed include the paramount chief and, by tradition, nearly the entire class of tangata rongorongo, the trained scribes and chanters who could use the boards. - 1864: The French lay missionary Eugene Eyraud reports seeing wooden tablets and staffs covered in rows of small carved figures in many island households. He is the first outsider on record to note them, but treats them as curiosities and no one there can still read them for him. - 1868-1869: Florentin-Etienne Jaussen, the Catholic bishop of Tahiti, acquires inscribed tablets and enlists a Rapanui laborer, Metoro Tau'a Ure, to chant readings of them. Jaussen compiles a list matching glyphs to meanings, but the readings prove inconsistent and are later judged unreliable as a key. - 1886: William Thomson, aboard the USS Mohican, spends twelve days on the island and records a recitation of a tablet by an elderly man, Ure Va'e Iko, said to have been trained before the raids. His account and photographs become a core primary source, though the chants cannot be reliably aligned to specific glyphs. - 1958: The German ethnologist Thomas Barthel publishes a foundational catalogue of the corpus, assigning code letters to the surviving objects and a numbered inventory of sign shapes. He identifies three lines of the Mamari tablet as a lunar calendar, the one passage whose function scholars still broadly accept. - 1995-1998: Steven Roger Fischer announces a partial decipherment, reading many texts as procreation chants of the form X copulated with Y, there issued forth Z. Other specialists do not accept it, arguing it overextends a single pattern and rests on thin corroboration, and no consensus decipherment follows. - 2024: A study in Scientific Reports reports new radiocarbon dates for the four Rome tablets: three fall in the 19th century, but one dates to roughly 1493 to 1509, reopening the possibility that rongorongo, or the tradition behind it, is a pre-European invention. ## The evidence, claim by claim - Claim: The glyphs are laid out with the regularity of real writing, so rongorongo must be a genuine script encoding a language. Evidence: The formal case is real and is why the objects are taken seriously. The signs are standardized and repeated, run in orderly lines, and follow a rare reverse-boustrophedon order in which each line is inverted relative to the one before, all of which looks like a deliberate notation rather than decoration. But looking like writing is not the same as being shown to be writing. Statistical studies of the small corpus have not settled whether rongorongo is full glottographic writing (signs standing for the sounds or words of Rapanui) or a mnemonic and proto-writing system that cued chants without spelling them out. The structure earns the script serious study; it does not by itself prove it records language. - Claim: Rongorongo has already been deciphered, at least in part, by researchers such as Fischer. Evidence: No claimed decipherment is accepted by other rongorongo specialists, and at least a score have been announced since the 1930s. Fischer's procreation-chant reading is the best known modern attempt; critics note it generalizes from one recurring pattern and leans heavily on limited informant material, and it has not unlocked the rest of the corpus. The one point of broad agreement is narrow: Barthel's identification of a lunar calendar on the Mamari tablet, whose subject scholars accept even though the passage still cannot be read word for word. Recognizing what a section is about is a long way from reading it. - Claim: The script is an ancient, independent invention of writing, one of only a few in human history. Evidence: This is plausible and genuinely important, but not established. The 2024 radiocarbon result placing one Rome tablet's wood at about 1493 to 1509 is the strongest hint of pre-European origin, and would make rongorongo a rare independent invention. The caveats are real: wood can predate its carving, driftwood or reused timber complicates dating, and the other three tablets tested fall in the 19th century. Some scholars have argued the impulse to write was sparked by seeing Europeans make marks, pointing to the 1770 Spanish annexation document that islanders signed with glyph-like signs. Independent ancient invention is a live and well-supported hypothesis, not a closed question. - Claim: The meaning is lost only because catastrophe wiped out the people who could read it. Evidence: This part of the record is solid and poignant. The Peruvian raids of 1862 to 1863 and the epidemics that followed reduced the island to roughly a hundred people and, by tradition, took nearly the whole class of trained scribes. By the time Jaussen and later Thomson sought readings, in 1869 and 1886, no one demonstrably retained the skill, and the chants they recorded could not be locked to particular glyphs. So the loss of a living tradition is well documented. What that loss does not tell us is what the system was: an interrupted reading tradition is equally consistent with true writing and with a memory aid, and cannot decide between them. - Claim: The old islanders' chants recorded by Jaussen and Thomson are authentic readings that preserve the key to the script. Evidence: The recitations are valuable primary evidence, but they do not function as a Rosetta Stone. Metoro's readings for Jaussen were inconsistent, and the linguist Jacques Guy found that Metoro even chanted the Mamari lunar calendar backwards and missed an obvious full-moon sign, suggesting improvisation rather than genuine reading. Ure Va'e Iko's recitation for Thomson likewise cannot be reliably matched line by line to the glyphs on the tablet shown to him. The chants may well preserve real Rapanui oral tradition; they have not delivered a stable mapping from sign to sound or word. - Claim: With modern tools, decipherment is only a matter of time. Evidence: The obstacles are structural, not merely technical. The entire corpus is about two dozen objects and roughly 15,000 glyphs, tiny beside the material that cracked Egyptian or Maya writing, and there is no bilingual text pairing rongorongo with a known language. High-resolution 3D scanning has improved transcription and revealed overlooked sign variants, which helps; but better images of an unreadable text do not supply the missing bilingual key or enlarge the corpus. A decipherment is possible and worth pursuing, yet the data may simply be too thin to ever compel one, and that uncertainty is itself part of the fair answer. ## Why people believe it - Easter Island already carries an aura of mystery. The moai, the isolation, and the popular story of a vanished civilization prime people to expect secrets, so a genuinely unreadable script slots neatly into an existing sense that the island hides something profound. - It is the only script of its kind. Rongorongo is the sole pre-20th-century writing (or writing-like system) known from Oceania, with no close relatives, which makes it feel like a unique key to a lost world rather than one more inscription among many. - An undeciphered code is irresistible. There is a deep human pull toward the idea of a message we can almost see but not read, and that romance draws attention and belief in a coming solution far beyond what the thin evidence supports. - Periodic decipherment headlines keep hope alive. Every few years a scholar or enthusiast announces a breakthrough, and each announcement, even when specialists reject it, reinforces the popular sense that the script is basically readable and nearly solved. - The tragedy gives it moral weight. That the readers were carried off by slave raids turns the puzzle into a story of stolen knowledge, and recovering the meaning can feel like an act of justice, which raises the emotional stakes of believing it can be done. ## Open questions - Is rongorongo full glottographic writing that spells out Rapanui, or a mnemonic and proto-writing system that cued memorized chants without encoding them fully? Statistical work has not settled this, and it is the question on which the whole reading of the script depends. - When and how did it originate? The 2024 date of about 1493 to 1509 for one tablet's wood points toward pre-European invention, but wood-versus-carving age and the possibility of contact-inspired origin after 1770 remain genuinely unresolved. - Could any decipherment ever be compelling, given a corpus of only about 15,000 glyphs on two dozen objects and no bilingual text? The limits may be structural, meaning the honest ceiling might be partial understanding rather than full reading. - What did the texts record? Fragments and analogy suggest genealogies, chants, ritual and calendrical material (the Mamari lunar calendar is the firmest example), but the actual content of nearly every object is still unknown. ## Sources - Rongorongo, Wikipedia: https://en.wikipedia.org/wiki/Rongorongo - Decipherment of rongorongo, Wikipedia: https://en.wikipedia.org/wiki/Decipherment_of_rongorongo - The invention of writing on Rapa Nui (Easter Island). New radiocarbon dates on the Rongorongo script, Scientific Reports (Nature) (2024): https://www.nature.com/articles/s41598-024-53063-7 - Undeciphered script from Easter Island may predate European colonization, Live Science (2024): https://www.livescience.com/archaeology/undeciphered-script-from-easter-island-may-predate-european-colonization - Rongorongo, the Easter Island Language, May Be Unique and Older Than Previously Thought, Atlas Obscura (2024): https://www.atlasobscura.com/articles/easter-island-rongorongo-discovery - Research Reveals the Natives of Easter Island Invented a Written Language From Scratch, Smithsonian Magazine (2024): https://www.smithsonianmag.com/smart-news/research-reveals-the-natives-of-easter-island-invented-a-written-language-from-scratch-180983793/ - Rapa Nui's Rongorongo Tablets in Rome Radiocarbon Dated, Archaeology Magazine (2024): https://archaeology.org/news/2024/02/09/240212-rongorongo-tablet-glyph/ - Language at the End of the World, Cabinet Magazine (2017): https://www.cabinetmagazine.org/issues/64/mikanowski.php Rated by The Conspiratory, a neutral, sourced encyclopedia of conspiracy theories. Full page: https://theconspiratory.com/theory/rongorongo