Deciphering Key Rongorongo Tablets: Tahua (A), Keiti (E), and G
Using our multi-method decipherment approach β blending glyph iconography, rebus phonetics, genealogical patterns, and mythic context β we analyze three important Rongorongo texts. For each tablet, we identify probable content types (genealogy, myth, calendar, place-list) and highlight repeating glyph clusters and motifs, applying the updated lexicon (e.g. glyph 76 = "copulate/begat", glyph 200 = ariki "chief", glyph 700 = ika "fish/victim") to decode sequences.
We also cross-reference known Rapa Nui oral traditions (like the Atua Matariri cosmogonic chant and migration legends) to enrich our interpretations. Key structural clues β such as recurring triplet formulas, segment delimiters, and glyph orientation β are noted as they inform the reading of each tablet.
Tablet Tahua (Text A) β "Great" St. Petersburg Tablet
Content Overview: Tahua is one of the longest Rongorongo inscriptions, likely compiling multiple chants and lists of high cultural importance. Scholars suspect it preserves a cosmogonic ("Creation") chant as well as historical/genealogical narratives. We find evidence of both mythological sequences (possibly tracing primordial events or divine genealogies) and genealogical/historical sequences (e.g. migration legends and lineages of chiefs) on this tablet.
Mythic/Cosmogonic Sequences on Tahua
Given Tahua's size and the presence of repeated glyph patterns common in other creation texts, it is a prime candidate for encoding a cosmogonic genealogy β a sequence of primordial unions and offspring. We look for the hallmark "X 76 Y β Z" triplet formula that denotes procreation (glyph 76 meaning "to copulate, beget").
If Tahua contains a creation chant, we would expect sequences of this form enumerating the successive generations of gods or elements (as seen on the Santiago Staff, a known cosmogonic text rich in glyph 76). For example, a segment might read as "Sky (glyph for Rangi) 76 Earth (Papa); issue forth Sun (glyph 8)", mirroring Polynesian myth where Sky father and Earth mother beget the sun.
Key Cosmogonic Glyphs:
- Glyph 8 (radiating circle) = ra'a "sun"
- Glyph 606 (bird figure) = collective "birds/spirits" symbol often preceding 76 in creation contexts
- Glyph 76 (phallic shape) = procreation/genealogical link between names
Tahua is thought to contain or parallel the "Great Tradition" text β a standardized mythic or genealogical chant found on other tablets. While tablets H, P, Q are known to share a large overlapping chant, any discovery of that same sequence on Tahua would cement its status as a repository of Rapa Nui's grand mythic tradition.
Genealogical & Historical Sequences on Tahua
Tahua also appears to record genealogical-historical content, including references to the legendary migration to Rapa Nui. One decoded segment on Tahua was interpreted as a summary of the arrival scouts story: "two chiefs sent six men; four were sent by Hotu MatuΚ»a and two by Hau-Maka".
This corresponds to the oral tradition that the founding king Hotu Matu'a dispatched a party of scouts (often said to be 6 or 7 men, guided by the seer Hau-Maka) to find the new land. In Tahua's glyphs, we see signs consistent with this narrative:
- Canoe glyph (for vaka, boat) alongside human figures (tangata, man)
- Action glyphs indicating "sending forth" (hakamaroa)
- Glyph 200 β read as ariki "chief, ruler" β likely appears to denote the two leaders Hotu MatuΚ»a and Hau-Maka
- Glyph 76 functioning as "sent" or "caused" in this context, linking the chiefs to the act of dispatching men
The numerical details (four men vs. two men) are not explicitly written out with numerals, but might be implied through repeated glyphs or plural markers (for example, four repetitions of a man glyph in one phrase vs. two in another, or use of the "hand" glyph 6 as a plural sign).
The end of the episode likely mentions the scouts reaching Anakena beach, the landing site β possibly indicated by glyph 9, deciphered as one "sand/earth". On other tablets, glyph 9 appears at the culmination of voyage sequences, aligning with the sandy shore of Anakena.
Structural markers: Within Tahua's text, we watch for section delimiters that separate these different narratives. A particular sign β glyph 32 β is posited to serve as a section boundary marker, as it recurs at points where one sequence seems to end and another begins (functioning like a punctuation mark or divider).
In general, Tahua's inscription likely consists of discrete blocks of text, each encoding a chant or list on a distinct theme. The presence of divider glyphs (or even a visual break on the tablet) between the creation chant portion and the historical/genealogical portion would confirm this compartmentalized structure. We suspect Tahua's scribes organized the tablet by content segments β consistent with the idea that a tangata rongorongo (expert reader) would recite each segment as a separate chant from memory.
Tablet Keiti (Text E) β Leuven (Louvain) Tablet
Content Overview: Keiti is another substantial text, known from rubbings and photos (the original was lost in WWI). Recent analyses reveal that Keiti's recto and verso contain different content genres. The recto side (9 lines) shows highly structured, repeating sequences β possibly astronomical or calendrical instructions β while the verso side (8 lines) lacks obvious repetition but features a frequently recurring compound suggestive of a genealogical or ritual list.
Repeating Astronomical/Calendrical Sequence (Recto of Keiti)
Structural studies (Melka 2008; Pozdniakov 2014) discovered that a certain sequence of glyphs on Keiti's recto (Er) is repeated about ten times across the lines. This strongly implies a standardized series, such as a calendar cycle or ritual litany repeated for multiple periods.
Melka identified three interlocking repetitive sub-sequences (labeled alpha, beta, gamma) on Keiti Er, with the main "alpha" sequence occurring 10 times (thus dubbed alpha 1β10). Each alpha unit is about 6β7 glyphs long and shares a common internal structure.
Notably, alpha sequences contain pairs of moon glyphs: two crescent signs (Barthel glyphs 40 and 41) appearing in various orientations (facing left or right). Every combination of moon orientations (βΎβΎ, βΎβ½, β½βΎ, β½β½) is used across the repetitions, often accompanied by one or two anthropomorphic figures (glyph 300) "holding" or associated with the moons.
This pattern suggests an astronomical cycle β likely the lunar month or specific night observances. Just as the Mamari tablet's known calendar uses alternating moon glyph orientations to mark waxing vs. waning nights, Keiti's paired crescents could encode instructions for pairs of nights or the transition of lunar phases.
The consistency of the sequence (ten repetitions) might correspond to a ritual schedule (e.g. ten months or ten ceremonial nights) or an abbreviated lunisolar year (perhaps 10 months out of 12, if two were omitted or recorded elsewhere).
Internal Structure of Repeated Units:
- Alpha-alpha: the two moons (glyphs 40/41) in various orientations, sometimes with a qualifying human figure β effectively a "moon phase instruction" portion.
- Alpha-beta: a triplet of glyphs following the moons, often involving an anthropomorphic figure holding an object and other adjunct signs. This could encode the ritual action or offering associated with that phase.
- Alpha-gamma: a final single glyph, often an anthropomorphic 200-type (chief or important figure) with modifiers. This likely names the principal character or purpose for that segment.
This breakdown implies that despite minor variations, the core meaning of each repeated sequence is the same. For instance, if one segment corresponds to the full-moon ceremony for the god Makemake, another segment might correspond to the new-moon ceremony for a different entity β the moons change orientation, the final figure might change hat or posture (different name/title), but the overall grammar stays fixed.
Orientation clues: Keiti's use of glyph orientation is a deliberate encoding technique. The left-facing vs. right-facing crescent likely denotes waning vs. waxing moons (or vice versa), exactly paralleling how the Mamari lunar calendar flips a fish glyph to signal the half-month transition.
This confirms that Rongorongo scribes employed graphical orientation to convey temporal or categorical distinctions β an important decipherment insight. We see on Keiti that orientation is not random art; it carries meaning (time direction or sequence).
"Grand Tradition" Genealogical Sequence (Verso of Keiti)
In contrast to the recto, Keiti's verso (Ev) does not display repeated blocks β it reads more like a continuous list or narrative. However, one striking feature is the very frequent repetition of a particular glyph compound on the verso.
Barthel's catalog number for this compound is 380.001 (a large anthropomorphic sign combined with a smaller adjunct), and it appears so regularly that 19th-century scholar J.P. Harrison noticed its pattern of recurrence as early as 1874. In one tablet line Harrison studied, a glyph compound repeated 31 times, leading him to suggest it was a genealogy listing "names of chiefs," with the repeated compound acting like "son of" or a section marker between names.
We can surmise that glyph 380.001 is serving as that genealogical link β likely equivalent to glyph 76 (the procreation/descendant symbol) or a variant thereof. In fact, our lexicon confirms glyph 76 as the key relational glyph ("to copulate, beget") in lineage contexts, so 380.001 may be an allographic form of 76 combined with a person glyph, meaning something like "begotten of".
Scholars have indeed interpreted line Gv6 of the Small Santiago tablet (text G) β which shows a similar repeating structure β as a genealogy. By analogy, Keiti's verso likely does the same, possibly on a larger scale.
Pozdniakov noted that Keiti contains a sequence of glyphs also found on several other tablets. Specifically, a long sequence spanning the end of Keiti's recto line 9 and the start of verso line 1 matches text found in tablets H, P, and Q (the "Grand Tradition" copies). This confirms that Keiti includes part of a standard corpus of Rongorongo β probably a genealogical or king-list chant that was widely reproduced.
Putting this together, we strongly suspect Keiti's verso is largely a genealogical list of rulers or ancestors β essentially a Royal lineage chant. Each entry in the list would have a personal name (encoded by one or more glyphs, likely logographic or rebus for the name's meaning) followed by the glyph 76/380.001 compound indicating "begat" or lineage, then the next name, and so on.
We would expect a pattern like: 200 + Name1 + 76 + 200 + Name2 + 76 + 200 + Name3..., repeated for each generation.
It's noteworthy that Keiti's two sides deal with different subjects. The recto's cyclic moon-human sequences and the verso's lineage list show the tablet was probably a multifunctional compendium β one side tracking time or ritual schedule, the other preserving sacred genealogy. This fits the idea that rongorongo tablets often carried more than one text, possibly to maximize use of space or to pair related knowledge (calendar and king list are both critical cultural knowledge).
Fragmentary Tablet G β Small Santiago Tablet
Content Overview: Tablet G is a smaller, damaged text (the "Small Santiago" fragment) but provides important clues due to overlapping content with larger texts. Tablet G's known lines β particularly side Gv (verso) lines 5β6 β have been identified as a genealogical sequence. Although fragmentary, G offers a test-bed for our decipherment of genealogies.
Genealogical Chain in Tablet G
Line Gv5β6 contains about 15 glyphs that appear in a structured chain. Butinov and Knorozov's pioneering 1950s study pointed out that Gv6 reads like a genealogy, and later experts agree this is plausible.
The pattern on G is akin to what we described for Keiti's verso: a repeating sequence of personal identifiers separated by a consistent linking glyph. In G's case, the linking glyph is most likely glyph 76 (or a compound variant of it), fulfilling the role of "son of" / "begat" between each ancestor-descendant pair.
Thomas Barthel observed that the same glyph sequence found on G appears (in paraphrased form) on Tablet K. In fact, tablets Gr (small Santiago, recto) and K share large portions verbatim. This means G is not an isolated text but part of a copied tradition β likely the very royal genealogy also on Keiti, K, and others.
Decipherment in Progress
By applying our lexicon to G's glyphs, we have started to identify specific terms in the genealogy. For instance, glyph 200 (ariki) appears in G's sequence as well, marking certain figures as chiefs. Wherever G shows an anthropomorphic figure with the distinctive headgear or shape of glyph 200, we read it as indicating a named king in the lineage.
Between them, whenever we see a phallic-shaped glyph (76) or its compound, we read "begat" or "son of", linking the names. Additionally, G's short lines might preserve the tail end of the lineage (perhaps the more recent ancestors) or a middle segment.
Cross-referencing oral genealogy: Rapa Nui oral history lists about 30β35 generations from Hotu MatuΚ»a down to the last ariki. Fascinatingly, Harrison's noted 31 repeated sections might correspond to ~31 names. Tablet G's ~15 glyph chain could represent half of that list.
If we hypothesize G covers, say, generation 16 to 30, we can check the known names in that range for any meaning that matches G's glyphs. For example, one king's name "Nga Ara" means "The Paths" β if a road or path glyph is present in G's sequence, it might stand for that name.
Since G is fragmentary, every glyph counts. We also use it to identify undeciphered glyphs by context. If a certain glyph on G always appears right before an ariki title, it could be part of a name or an epithet like "the Great" or "the Younger".
This is how glyph 9 was deciphered as "sand" β by seeing it recur at voyage-ends across texts β and how we recognized glyph 76 as a lineage marker β by seeing it repeat in list structures.
Structural and Interpretive Highlights
Across these tablets, our multi-method approach has illuminated several key motifs and parallel sequences:
Genealogical "Begat" Chains
Tablets G, Keiti (verso), and others show long chains of names linked by a repeated glyph compound (76 or variant). This confirms Rongorongo was used to record genealogies of chiefs, with glyph 76 acting as "copulated/begat (son of)". Glyph 200 frequently accompanies these names, identifying them as ariki (chiefs).
Thus we can read lines as "Chief A begat Chief B begat Chief Cβ¦" in a formulaic manner.
Cosmogonic Triplets and Mythic Lists
The classic creation formula "X copulated with Y; Z was born" is evidenced on the Santiago Staff and likely on Tahua. The recurrence of glyphs like 606 (birds/spirits), 700 (fish/victim), 8 (sun) in triadic sequences suggests a mythic genealogy of gods or elements.
We see strong parallels between these glyph sequences and Polynesian chants like Atua Matariri which enumerate primordial unions in exactly this fashion β a structure mirrored by glyph 76 linking figures and a resulting plant glyph.
Place-Name and Voyage Sequences
Tablet texts that describe journeys (like Aruku Kurenga, and possibly parts of Tahua) contain ordered lists of places marked by distinctive glyphs (canoe, landmark symbols, "sand/earth" etc.). The discovery of glyph 9 (one "sand") at the end of each voyage sequence on Aruku Kurenga was a pivotal clue tying the text to the discovery of Anakena beach.
Such parallel sequences across tablets reinforce content identification β it appears the Rongorongo corpus had a few standard narratives (creation of the world, voyages of migration, kingly lineages, lunar calendar) that were copied or paraphrased on multiple tablets.
Segment Delimiters and Layout
We have gathered evidence that Rongorongo texts use dedicated glyphs or formatting to mark sections. On the Santiago Staff, a unique vertical divider glyph (coded 999) appears after each genealogical triad, functioning like a full stop.
On the tablets, we suspect a glyph like 32 served a similar role as a section break or separator. Furthermore, physical line breaks were sometimes used creatively: on Keiti, one line ends abruptly and the next line starts with a new sequence, confirming that the scribe intentionally split sections between lines.
Recognizing these cues is part of reading the text structure. For instance, inverted orientation of certain glyphs can flag a contextual shift (as with the flipped fish in the calendar text marking the full-moon point).
In summary, by examining Tablets Tahua (A), Keiti (E), and G through multiple lenses, we are steadily unlocking their content. Tahua likely preserves both the origins of the world and the tribe β creation myths and the founding voyages β bridging myth and history. Keiti appears to be a compendium of time reckoning and kingly lineage, linking the celestial cycles with earthly authority. The fragment G, despite its size, confirms the genealogical lists and helps corroborate readings on the bigger tablets.
Crucially, the same symbols, phrases, and structures recur across the corpus, allowing us to cross-verify each decipherment. With each glyph meaning established (from ariki to ika, ra'a to mahinΔ), the picture becomes clearer: the Rongorongo texts indeed encode the "Great Tradition" of Rapa Nui β its cosmogony, its line of kings, its sacred calendar and journeys β in a sophisticated, condensed script.
Through careful structural analysis and cultural cross-reference, we have begun to read these tablets in their broad outlines, transforming the mysterious glyphs into the familiar stories and knowledge they were meant to record. Each new confirmed reading (a shared sequence or a matched chant) tightens the decipherment and brings us closer to hearing the voices of Easter Island's past.