Feb 27


r1Rongorongo is a system of glyphs discovered in the 19th century on Easter Island that appears to be writing or proto-writing. It cannot be read despite numerous attempts at decipherment. Although some calendrical and what might prove to be genealogical information has been identified, not even these glyphs can actually be read. If Rongorongo does prove to be writing, it could be one of as few as three or four independent inventions of writing in human history.

Two dozen wooden objects bearing Rongorongo inscriptions, some heavily weathered, burned, or otherwise damaged, were collected in the late 19th century and are now scattered in museums and private collections. None remain on Easter Island. The objects are mostly tablets shaped from irregular pieces of wood, sometimes driftwood, but include a chieftain’s staff, a bird-man statuette, and two reimiro ornaments. There are also a few petroglyphs which may include short Rongorongo inscriptions. Oral history suggests that only a small elite was ever literate and that the tablets were sacred.

Authentic Rongorongo texts are written in alternating directions, a system called reverse boustrophedon. In a third of the tablets, the lines of text are inscribed in shallow fluting carved into the wood. The glyphs themselves are outlines of human, animal, plant, artifact and geometric forms. Many of the human and animal figures have characteristic protuberances on each side of the head, possibly representing ears or eyes.

Individual texts are conventionally known by a single uppercase letter and a name, such as Tablet C, the Mamari Tablet. The somewhat variable names may be descriptive or indicate where the object is kept, as in the Oar, the Snuffbox, the Small Santiago Tablet, and the Santiago Staff.

Etymology and variant names

Rongorongo is the modern name for the inscriptions. In the Rapa Nui language it means “to recite, to declaim, to chant out”.

The original name—or perhaps description—of the script is said to have been kohau motu mo Rongorongo, “lines incised for chanting out”, shortened to kohau rongorongo or “lines [for] chanting out”. There are also said to have been more specific names for the texts based on their topic. For example, the kohau ta‘u (“lines of years”) were annals, the kohau îka (“lines of fishes”) were lists of persons killed in war (îka “fish” was homophonous with or used figuratively for “war casualty”), and the kohau ranga “lines of fugitives” were lists of war refugees.

Some authors have understood the ta‘u in kohau ta‘u to refer to a separate form of writing distinct from Rongorongo. Barthel recorded that, “The Islanders had another writing (the so-called ‘ta‘u script’) which recorded their annals and other secular matters, but this has disappeared.” However, Fischer writes that “the ta‘u was originally a type of rongorongo inscription. In the 1880s, a group of elders invented a derivative ‘script’ [also] called ta‘u with which to decorate carvings in order to increase their trading value. It is a primitive imitation of rongorongo.” An alleged third script, the mama or va‘eva‘e described in some mid-twentieth-century publications, was “an early twentieth-century geometric [decorative] invention”.

Form and construction

r52The forms of the glyphs are standardized contours of living organisms and geometric designs about one centimeter high. The wooden tablets are irregular in shape and, in many instances, fluted (tablets B, E, G, H, O, Q, and possibly T), with the glyphs carved in shallow channels running the length of the tablets, as can be seen in the image of tablet G at right. It is thought that irregular and often blemished pieces of wood were used in their entirety rather than squared off due to the scarcity of wood on the island.

Writing media

Except for a few possible glyphs cut in stone. all surviving texts are inscribed in wood. According to tradition, the tablets were made of toromiro wood. However, Orliac (2005) examined seven objects (tablets B, C, G, H, K, Q, and reimiro L) with stereo optical and scanning electron microscopes and determined that all were instead made from Pacific rosewood; the same identification had been made for tablet M in 1934. This 15-meter tree, known as “Pacific rosewood” for its color and called mako‘i in Rapanui, is used for sacred groves and carvings throughout eastern Polynesia and was evidently brought to Easter Island by the first settlers. However, not all the wood was native: Orliac (2007) established that tablets N, P, and S were made of South African Yellowwood and therefore that the wood had arrived with Western contact. Fischer describes P as “a damaged and reshaped European or American oar”, as are A (which is European ash, and V; notes that wood from the wreck of a Western boat was said to have been used for many tablets; and that both P and S had been recycled as planking for a Rapanui driftwood canoe, suggesting that by that time the tablets had little value to the islanders as texts. Several texts, including O, are carved on gnarled driftwood. The fact that the islanders were reduced to inscribing driftwood, and were regardless extremely economical in their use of wood, may have had consequences for the structure of the script, such as the abundance of ligatures and potentially a telegraphic style of writing that would complicate textual analysis.

Oral tradition holds that, because of the great value of wood, only expert scribes used it, while pupils wrote on banana leaves. German ethnologist Thomas Barthel believed that carving on wood was a secondary development in the evolution of the script based on an earlier stage of incising banana leaves or the sheaths of the banana trunk with a bone stylus, and that the medium of leaves was retained not only for lessons but to plan and compose the texts of the wooden tablets. He found experimentally that the glyphs were quite visible on banana leaves due to the sap that emerged from the cuts and dried on the surface. However, when the leaves themselves dried they became brittle and would not have survived for long.

Barthel speculated that the banana leaf might even have served as a prototype for the tablets, with the fluted surface of the tablets an emulation of the veined structure of a leaf. Practical experiments with the material available on [Easter Island] have proved that the above-mentioned parts of the banana tree are not only an ideal writing material, but that in particular a direct correspondence exists between the height of the lines of writing and the distance between the veins on the leaves and stems of the banana tree. The classical inscriptions can be arranged in two groups according to the height of the lines (10–12 mm vs. 15 mm); this corresponds to the natural disposition of the veins on the banana stem (on average 10 mm in the lower part of a medium-sized tree) or on the banana leaf (maximum 15mm).

Direction of writing

Rongorongo glyphs were written in reverse boustrophedon, left to right and bottom to top. That is, the reader begins at the bottom left-hand corner of a tablet, reads a line from left to right, then rotates the tablet 180 degrees to continue on the next line. When reading one line, the lines above and below it would appear upside down, as can be seen in the image at left.

However, the writing continues onto the second side of a tablet at the point where it finishes off the first, so if the first side has an odd number of lines, as is the case with tablets K, N, P, and Q, the second will start at the upper left-hand corner, and the direction of writing shifts to top to bottom.

Larger tablets and staves may have been read without turning, if the reader were able to read upside-down.

Writing instruments

According to oral tradition, scribes used obsidian flakes or small shark teeth, presumably the hafted tools still used to carve wood in Polynesia, to flute and polish the tablets and then to incise the glyphs. The glyphs are most commonly composed of deep smooth cuts, though superficial hair-line cuts are also found. A glyph is composed of two parts connected by a hair-line cut; this is a typical convention for this shape. Several researchers, including Barthel, believe that these superficial cuts were made by obsidian, and that the texts were carved in a two-stage process, first sketched with obsidian and then deepened and finished with a worn shark tooth. The remaining hair-line cuts were then either errors, design conventions (as at right), or decorative embellishments.Vertical strings of chevrons or lozenges, for example, are typically connected with hair-line cuts. However, Barthel was told that the last literate Rapanui king, Nga‘ara, sketched out the glyphs in soot applied with a fish bone and then engraved them with a shark tooth.

Tablet N, on the other hand, shows no sign of shark teeth. Haberlandt noticed that the glyphs of this text appear to have been incised with a sharpened bone, as evidenced by the shallowness and width of the grooves. N also “displays secondary working with obsidian flakes to elaborate details within the finished contour lines. No other rongo-rongo inscription reveals such graphic extravagance”.

Other tablets appear to have been cut with a steel blade, often rather crudely. Although steel knives were available after the arrival of the Spanish, this does cast suspicion on the authenticity of these tablets.


The glyphs are stylized human, animal, vegetable and geometric shapes, and often form compounds. Nearly all those with heads are oriented head up and are either seen face on or in profile to the right, in the direction of writing. It is not known what significance turning a glyph head-down or to the left may have had. Heads often have characteristic projections on the sides which may be eyes, but which often resemble. Birds are common; many resemble the frigatebird which was associated with the supreme god Makemake. Other glyphs look like fish or arthropods. A few, but only a few, are similar to petroglyphs found throughout the island.


Oral tradition holds that either Hotu Matu‘a or Tu‘u ko Iho, the legendary founder(s) of Rapa Nui, brought 67 tablets from their homeland. The same founder is also credited with bringing indigenous plants such as the toromiro. However, there is no homeland likely to have had a tradition of writing in Polynesia or even in South America. Thus Rongorongo appears to have been an internal development. Given that few if any of the Rapanui people remaining on the island in the 1870s could read the glyphs, it is likely that only a small minority were ever literate. Indeed, early visitors were told that literacy was a privilege of the ruling families and priests who were all kidnapped in the Peruvian slaving raids or died soon afterwards in the resulting epidemics.

Dating the tablets

Little direct dating has been done. The start of forest-clearing for agriculture, and thus presumably colonization, has been dated to circa 1200, implying a date for the invention of Rongorongo no earlier than the 13th century. Tablet Q is the sole item that has been carbon dated, but the results only constrain the date to sometime after 1680. A Glyph representing an island palm is thought to represent the extinct Easter Island palm, which disappeared from the island’s pollen record circa 1650, suggesting that the script itself is at least that old.

Texts A, P, and V can be dated to the 18th or 19th century by virtue of being inscribed on European oars. Orliac (2005) argued that the wood for tablet C was cut from the trunk of a tree some 15 meters (50 ft) tall, and Easter Island has long been deforested of trees that size. Analysis of charcoal indicates that the forest disappeared in the first half of the 17th century. Roggeveen, who discovered Easter Island in 1722, described the island as “destitute of large trees” and in 1770 González de Ahedo wrote, “Not a single tree is to be found capable of furnishing a plank so much as six inches [15 cm] in width.” Forster, with Cook’s expedition of 1774, reported that “there was not a tree upon the island which exceeded the height of 10 feet [3 m].”

All of these methods date the wood, not the inscriptions themselves. Pacific rosewood is not durable, and is unlikely to survive long in Easter Island’s climate.

1770 Spanish expedition

In 1770 the Spanish annexed Easter Island under Captain González de Ahedo. A signing ceremony was held in which a treaty of annexation was signed by an undisclosed number of chiefs “by marking upon it certain characters in their own form of script.”

Several scholars have suggested that Rongorongo may have been an invention inspired by this visit and the signing of the treaty of annexation. As circumstantial evidence, they note that no explorer reported the script prior to Eugène Eyraud in 1864, and are of the opinion that the marks with which the chiefs signed the Spanish treaty do not resemble Rongorongo. The hypothesis of these researchers is not that Rongorongo was itself a copy of the Latin alphabet, or of any other form of writing, but that the concept of writing had been conveyed in a process anthropologists term trans-cultural diffusion, which then inspired the islanders to invent their own system of writing. If this is the case, then Rongorongo emerged, flourished, fell into oblivion, and was all but forgotten within a span of less than a hundred years.

However, known cases of the diffusion of writing, such as Sequoya’s invention of the Cherokee syllabary after seeing the power of English-language newspapers, or Uyaquk’s invention of the Yugtun script inspired by readings from Christian scripture, involved greater contact than the signing of a single treaty. The glyphs could be crudely written Rongorongo, as might be expected for Rapa Nui representatives writing with the novel instrument of pen on paper. The fact that the script was not otherwise observed by early explorers, who spent little time on the island, may reflect that it was taboo; such taboos may have lost power along with the tangata Rongorongo (scribes) by the time Rapanui society collapsed following European slaving raids and the resulting epidemics, so that the tablets had become more widely distributed by Eyraud’s day. Orliac points out that Tablet C would appear to predate the Spanish visit by at least a century.


Easter Island has the richest assortment of petroglyphs in Polynesia. Nearly every suitable surface has been carved, including the stone walls of some houses and a few of the famous mo‘ai statues and their fallen topknots. Around one thousand sites with over four thousand glyphs have been catalogued, some in bas- or sunken-relief, and some painted red and white. Designs include a concentration of chimeric bird-man figures at Orongo, a ceremonial center of the tangata manu (“bird-man”) cult; faces of the creation deity Makemake; marine animals like turtles, tuna, swordfish, sharks, whales, dolphins, crabs, and octopus (some with human faces); roosters; canoes, and over five hundred komari (vulvas). Petroglyphs are often accompanied by carved divots (“cupules”) in the rock. Changing traditions are preserved in bas-relief birdmen, which were carved over simpler outline forms and in turn carved over with komari. Although the petroglyphs cannot be directly dated, some are partially obscured by pre-colonial stone buildings, suggesting they are relatively old.

Several of the anthropomorphic and animal-form petroglyphs have parallels in Rongorongo, for instance a double-headed frigatebird on a fallen mo‘ai topknot, a figure which also appears on a dozen tablets. McLaughlin (2004) illustrates the most prominent correspondences with the petroglyph corpus of Lee (1992). However, these are mostly isolated glyphs; few text-like sequences or ligatures have been found among the petroglyphs. This has led to the suggestion that Rongorongo must be a recent creation, perhaps inspired by petroglyph designs or retaining individual petroglyphs as logograms (Macri 1995), but not old enough to have been incorporated into the petroglyphic tradition. The most complex candidate for petroglyphic Rongorongo is what appears to be a short sequence of glyphs, one of which is a ligature, carved on the wall of a cave. However, the sequence does not appear to have been carved in a single and the cave is located near the house that produced the Poike tablet, a crude imitation of Rongorongo, so the Ana o Keke petroglyphs may not be authentic.


Eugène Eyraud, a lay friar of the Congrégation de Picpus, landed on Easter Island on January 2, 1864, on the 24th day of his departure from Valparaíso. He was to remain on Easter Island for nine months, evangelizing its inhabitants. He wrote an account of his stay in which he reports his discovery of the tablets that year: In every hut one finds wooden tablets or sticks covered in several sorts of hieroglyphic characters: They are depictions of animals unknown on the island, which the natives draw with sharp stones. Each figure has its own name; but the scant attention they pay to these tablets leads me to think that these characters, remnants of some primitive writing, are now for them a habitual practice which they keep without seeking its meaning. There is no other mention of the tablets in his report, and the discovery went unnoticed. Eyraud left Easter Island on October 11, in extremely poor health. Made a fully fledged priest in 1865, he returned to Easter Island in 1866 where he died of tuberculosis in August 1868, aged 48.


In 1868 the Bishop of Tahiti, Florentin-Étienne “Tepano” Jaussen, received a gift from the recent Catholic converts of Easter Island. It was a long cord of human hair, a fishing line perhaps, wound around a small wooden board covered in hieroglyphic writing. Stunned at the discovery, he wrote to Father Hippolyte Roussel on Easter Island to collect all the tablets and to find natives capable of translating them. But Roussel could only recover a few, and the islanders could not agree on how to read them.

Yet Eyraud had seen hundreds of tablets only four years earlier. What happened to the missing tablets is a matter of conjecture. Eyraud had noted how little interest their owners had in them. Stéphen Chauvet reports that Orliac has observed that the deep black indention, about 10 cm long, on lines 5 and 6 of the recto of tablet H is a groove made by the rubbing of a fire stick, showing that tablet H had been used for fire-making. Tablets S and P had been cut into lashed planking for a canoe, which fits the story of a man named Niari who made a canoe out of abandoned tablets.

As European-introduced diseases and raids by Peruvian slavers, including a final devastating raid in 1862 and a subsequent smallpox epidemic, had reduced the Rapa Nui population to under two hundred by the 1870s, it is possible that literacy had been wiped out by the time Eyraud discovered the tablets in 1866.

Thus in 1868 Jaussen could recover only a few tablets, with three more acquired by Captain Gana of the Chilean corvette O’Higgins in 1870. In the 1950s Barthel found the decayed remains of half a dozen tablets in caves, in the context of burials. However, no glyphs could be salvaged.

Of the 26 commonly accepted texts that survive, only half are in good condition and authentic beyond doubt.





Todd Wayne Knipple

Todd Wayne Knipple

I was awakened to the reality of the paranormal at the age of 12 while at a friend’s home. What happened that one night back in 1983 kept me awake for three days. After that incident I was left with many questions. My determination to find answers to what had happened that night became an obsession that would lead me down a path into investigating the paranormal. I found myself consumed by these strange anomalies that were captured on video, audio and photographs, and the strange feelings and sensations I would have from walking into old buildings or a person’s home.
For nearly 30 years, I have dedicated myself to finding these answers by using a scientific approach to fully understand and bring explanations to those who seek help and who are experiencing themselves the same things I experienced some 30 years ago. I can say that out of all of the cases I have investigated over the years as a paranormal investigator, 99% can be explained as a product of environment. There is, however, that 1% that can only be considered Beyond The Grave.
Todd Wayne Knipple

Latest posts by Todd Wayne Knipple (see all)