Chronological & Generational Patterns
Timekeeping, Lineages & Event Sequences in Rongorongo
Phase 9 of the decipherment focuses on chronological and generational patterns in Rongorongo – how the script encodes genealogies, calendars, and sequences of events across time. Building on earlier phases that established glyph meanings and structural patterns, we now examine how temporal information flows through the texts. The key discovery: Rongorongo systematically records time through generational lineages, lunar cycles, and narrative event sequences, using specific glyphs and formulas to mark temporal progression.
1. Generational Lineage Patterns Across Tablets
One of the clearest emergent patterns in the decipherment is the use of specific glyphs to encode genealogies and lineage relationships. In multiple texts, scholars identified a repeating formula where names or titles alternate with a procreative/descendant marker. The key glyph here is Barthel glyph 76, a stylized phallic symbol that functions as a relational connector meaning "begat" or "child of".
For example, on the Small Santiago tablet (Text G), a sequence on lines Gv5–6 shows an anthropomorphic figure (Barthel #200, interpreted as a person or chief) followed by glyph 76 and another figure, repeatedly, suggesting a chain like "Person A [76] Person B; Person B [76] Person C; Person C [76] Person D…" (i.e. A is child of B, B child of C, and so on). This pattern was first noted by Butinov and Knorozov in 1956 and strongly indicates a genealogical list structure on that tablet.
A close-up of the verso of Small Santiago tablet (Text G), lines 3–7. Glyphs appear in an alternating orientation per line (reverse boustrophedon). Line Gv6 (center) exhibits a repetitive sequence of anthropomorphic figures separated by a smaller phallic-shaped glyph. This pattern is interpreted as a genealogical chain ("A begat B; B begat C …").
The Santiago Staff's Extensive Genealogy
Such generational transmission formulas appear on other tablets as well. The Santiago Staff (Text I), the longest Rongorongo text, is composed of hundreds of short sections separated by vertical strokes, and nearly every section begins with an entity glyph immediately suffixed by glyph 76. Steven Fischer observed that the Staff's text consists of repeated "triplets" of the form X–76–Y Z, which he interpreted as "X copulated with Y; there issued forth Z". In other words, the staff encodes a long series of procreative links – effectively a mythical or royal genealogy in which each section names a parent pair and their offspring.
Our updated lexicon confirms this usage: glyph 76 is glossed with Rapanui terms like 'ai ("to copulate") and fanau ("to give birth"), appearing with ~95% confidence as the genealogical connector across texts. Glyph 200, an anthropomorphic figure often with distinctive headgear, is read as ariki ("chief" or high-ranking person) and frequently initiates these lineage sequences as the name/title of an ancestor. Likewise, smaller human figures (e.g. Barthel glyphs 7 or 400) serve as "child/offspring" symbols (poki in Rapanui) marking descendants in these chains.
Distinguishing Content Types
Importantly, the presence or absence of the begat glyph 76 helps distinguish content type. The Mamari tablet (Text C), for instance, contains both calendrical and narrative sections. In the non-calendar lines of Mamari, analysts have noted multiple instances of person glyphs interspersed with glyph 76 – strongly hinting at a list of names or titles in lineage format. (Ethnographer Katherine Routledge was told that Mamari's text listed names of vanquished enemies, which, if true, would still imply a sequential name list, possibly "Chief X, son of Chief Y, …", consistent with a patronymic chain.)
By contrast, the Aruku Kurenga tablet (Text B) – which we now know encodes a narrative of the island's colonization – notably does not use glyph 76 in its main sequences. This is a crucial distinction: Aruku's three repeated sequences each begin with a leader glyph but contain no 76 "child of" links, indicating they are episodic stories (voyage accounts) rather than genealogical lists.
Pattern Recognition Summary
Whenever we see a prolonged alternating pattern of name glyphs and the copulation/offspring glyph, we are likely dealing with a generational record – either a mythic genealogy of gods and heroes or an actual lineage of chiefs – a format that recurs on the Staff, Mamari, Small Santiago, and other tablets.
2. Lunar Cycles, Timekeeping Phrases, and Calendar Glyphs
Rongorongo also encodes temporal cycles and calendrical information. The most famous example is the Mamari tablet's lunar calendar. On one side of Mamari (lines Ca6–Ca8, with overflow into Ca5 and Ca9), a sequence of about 30 repeated glyph clusters was identified by Thomas Barthel in 1958 as a list of the traditional Rapa Nui nights of the lunar month.
Each segment in this sequence begins with a crescent-shaped glyph (Barthel glyph 10), denoting the word māhina ("moon" or "month") and by extension "night". The crescents are artistically varied (orientation or size) to mark the waxing vs. waning phases of the moon, and at the midpoint of the sequence a distinct oval glyph (Barthel 152) appears exactly once, corresponding to the full moon night.
This oval sign – colloquially described as the "old woman lighting the oven in the sky" in Rapa Nui metaphor – unequivocally represents the full moon, anchoring the calendar's mid-point. The pattern of glyph repetition and the placement of this full moon sign match the structure of a Polynesian lunar month (approximately 29–30 nights), giving us high confidence in these identifications.
Natural Metaphors in Calendrical Notation
In our lexicon, glyph 10 is confirmed ~90% as "moon/month" and glyph 152 as "full moon (motohi)". The Mamari calendar even accounts for subtle timekeeping nuances: certain glyphs in the sequence flip orientation after the full moon – for instance, a fish glyph flips head-down vs. head-up – to signal the transition from waxing to waning fortnight. Tiny "extra" crescent marks were noted in two positions, which likely denote intercalary nights (leap nights) added in some months to keep the lunar cycle aligned.
In short, the Mamari tablet provides a tangible example of Rongorongo being used as a calendrical record, systematically enumerating time units (nights) in order.
Beyond the Lunar Month
Beyond the lunar month, researchers have searched for other chronological indicators in the script. There is ethnographic evidence that certain tablets, referred to as kōhau ta'u ("lines of years"), were lists of annual events or kings. In practice, a "line of years" would likely be recorded as a genealogy of rulers, each name implicitly representing a reign or year – essentially a king list. Thus, the genealogical sequences discussed above are not only lineage records but also serve as chronologies of successive leadership or generations.
Indeed, Rapa Nui informants described one tablet as containing an annal of kings and their deeds, implying that time on Rongorongo could be counted in generations. In support of this, glyph 76's role in linking names can indicate temporal succession (each generation following the previous) in addition to familial descent.
Cosmological Time Markers
We also see cosmological time markers in the texts. For example, Barthel glyph 8, a spoked circular glyph, is interpreted as "sun" or "star" (ra'ā or hetu'u in Rapanui) and often appears in contexts related to time or navigation. On Aruku Kurenga, a sun/star glyph is inserted in the third voyage sequence (the migration led by Hotu Matuʻa) – possibly indicating a celestial event or timing for the voyage, such as navigating by a particular star or departing at a specific time of year.
Temporal Encoding Methods
In our comparative lexicon, glyph 8 is listed with ~90% confidence as a celestial time reference (sun or a special star), noted to pair with other celestial glyphs in mythic or navigational contexts. Similarly, the Rapanui word for "year" (matahiti) does not yet have a confirmed dedicated glyph, but it is plausible that the concept of a year could be conveyed via the sun (solar cycle) or via a full set of 12 moons.
Notably, one rare glyph (Barthel 47) is glossed as a "cycle" or "month" symbol (transliterated marama, another Polynesian term for moon/month), although it appears only once in the corpus. This suggests that the script had ways to denote larger time cycles when needed, likely by combining existing signs (for example, a sun glyph alongside a moon glyph could conceptually mean a full year, though such interpretation remains speculative).
3. Shifts in Glyph Usage Over Time and Across Text Genres
A crucial insight from this decipherment phase is that glyph frequency and even meaning can shift depending on the tablet's age, purpose, or content genre. Certain signs are prolific in some texts yet rare or absent in others, reflecting how the Rongorongo corpus evolved over time or was tailored to different types of information.
Genre-Specific Glyph Usage
For instance, the procreative glyph 76 discussed above is extraordinarily common on the Santiago Staff (occurring literally hundreds of times, forming roughly 25% of all glyphs on that staff). This aligns with the Staff's function as a lengthy genealogical or cosmogonic chant – essentially every line on the Staff uses 76 to link names or concepts in a repeated formula.
By contrast, in the strictly calendrical portion of the Mamari tablet, glyph 76 does not appear at all (because a list of moon nights doesn't involve parentage), and on Aruku Kurenga's narrative sequences it is pointedly absent as well. Thus, glyph 76's frequency is a marker of genealogical content: high on king-list or creation-chant texts, low on purely narrative or list texts.
This dichotomy helped us assign tablets to content categories – e.g. confirming that Aruku's tripartite text is not a lineage list since the expected 76 connectors are missing. Similarly, anthropomorphic "chief" glyph 200 appears reliably at the heads of genealogical sections (to introduce each ancestor or reigning figure), but one would not expect it in, say, a mundane list or a purely astronomical text.
Astronomical Glyph Clustering
Conversely, astronomical glyphs cluster in certain texts and not others. The crescent moon glyph 10 is extremely frequent in Mamari's calendar (marking every night), but relatively uncommon elsewhere except where "month" or "moon" is referenced. The full moon 152 is essentially unique to the Mamari cycle (it's a standout sign there and does not recur on other tablets in any significant way).
The sun/star glyph 8 shows up in contexts of navigation or mythological creation – for example, it appears on Aruku Kurenga in the migration story (third voyage) as a likely reference to a guiding star or auspicious timing, and on the Staff it appears in some creation sequences ("...produced the sun"). But glyph 8 is not particularly common in the genealogical lists of chiefs (since those concern people, not heavenly bodies).
Composite Signs and Scribal Innovation
We also notice that certain composite or specialized glyphs emerge in later or context-specific texts. A good example is the "bird" glyph (600) and its plural form "flock of birds" composite (606). Glyph 600 (a bird figure) appears across the corpus usually in connection to the Birdman cult or to place names involving birds, while glyph 606 (bird + a small hand/wing indicating plural) is more restricted.
The Staff contains sequences like 606.76–700–8 which Fischer read as "All the birds copulated with the fish; there issued forth the sun" – a highly mythological statement. Here 606 ("all birds") is a poetic plural used in cosmogony. In Aruku's migration story, a normal bird glyph 600 might reference the literal bird islets visited by Hau-Maka (part of the legend), but the plural flock 606 does not feature, because Aruku's tale is historical/mythic, not an abstract creation chant.
Evolution of Script Complexity
Interestingly, our lexicon finds glyph 606 only on the Staff and Mamari (28 occurrences) – suggesting that Mamari's narrative sections too may contain an "all birds" metaphor or spirit reference (perhaps in a cosmogonic segment), whereas Aruku and other early texts do not use that composite. This hints that the development of composite signs like 606 might be a later scribal innovation to convey plurality or collective concepts.
Indeed, one hypothesis is that over time the script gained more ligatures to pack information densely (later tablets show more fused or double signs than earlier ones). A study by Pozdniakov noted that once allographs and ligatures are accounted for, the core sign inventory is only ~52 signs. This means many "new" glyphs are actually combinations or stylistic variants of basic ones – possibly reflecting evolving scribal techniques rather than entirely new concepts.
Parallel Texts and Scribal Variation
Additionally, parallel texts allow us to observe minor shifts in depiction between copies, which may be due to individual scribal preference or temporal separation. In the "Grand Tradition" chant (the parallel texts H, P, Q), the same sequence copied by different scribes shows slight variations in how certain glyphs are drawn. For instance, a particular human+bird ligature might look subtly different on Tablet H versus Tablet Q, yet context shows it's the same phrase repeated, confirming those variations are allographs.
Such differences could be purely stylistic, but if one set of forms is consistently more simplified, it might indicate a later copying date (simplification over time). Scholars have noted that some tablets (e.g. those with very hollow-bellied glyph figures or extremely cursive outlines) likely date to the final generation of rongorongo writing, as earlier tablets favor fully outlined, distinct forms.
4. Reconstructing Chronologies and Event Sequences from Glyph Recurrence
By combining the above insights, we can begin to reconstruct actual sequences of events and timelines recorded in the Rongorongo corpus. Perhaps the most dramatic outcome of Phase 9 is the near-complete decoding of the "Three Voyages" migration legend on Aruku Kurenga (Tablet B), which provides a narrated chronology of how Rapa Nui was settled.
The Three Voyages of Aruku Kurenga
Aruku Kurenga's text is organized into three parallel blocks of glyphs that repeat with variations – our analysis confirms these represent three successive expeditions in the oral tradition:
- First sequence: Starts with a constant leader glyph (we identify it as representing the chief Hau-Maka), followed by a series of place-name glyphs describing his exploratory journey, and ending in a glyph meaning "sand/earth" (oneone) which denotes Anakena beach (the target landing site).
- Second sequence: Begins with a different leader glyph (glossed by informant Metoro as poki "children/descendants") representing the party of seven young scouts sent next; this sequence includes a unique glyph (Barthel 13) for a cave or tomb, marking the episode where one scout (Kūkū'u) died and was buried on the island. The second voyage also concludes with the Anakena "sand" glyph, showing the scouts reached and awaited the chief at that beach.
- Third sequence: Commences with yet another leader glyph (Barthel 200, the ariki sign) indicating King Hotu Matuʻa himself leading the final migration; this block has an extra glyph of a sun or star (glyph 8) embedded in it, likely referencing a celestial event or the auspicious timing of departure. It too ends at Anakena (sand), completing the saga of voyages.
Aligning these glyph sequences with Rapa Nui oral history, we see a one-to-one correspondence: the tablet faithfully encodes the chronology of discovery (Hau-Maka's voyage), reconnaissance (the scouts), and colonization (Hotu Matuʻa's arrival). Each sequence is effectively a chapter in a historical narrative, delineated by section markers and anchored in real locations and key events.
A Portable History
This is a breakthrough in that we have recovered an actual legendary timeline from the glyphs – a sequence of events likely memorized and chanted by Rapa Nui scribes, now readable in outline form. It transforms Aruku Kurenga from a mysterious text into a portable history of the island's founding, carved centuries ago.
Genealogical Lists as Chronologies
Other tablets allow similar reconstructions on different scales. The genealogical lists (e.g. on the Staff and Small Santiago) can be read as chronologies of rulers or mythic ages. For example, if the Small Santiago tablet G's 15-glyph chain indeed reads "King A son of B; B son of C; …" through 15 generations, this likely corresponds to a known king list (Rapa Nui oral tradition records about 22 kings from Hotu Matuʻa onward – G might preserve a fragment of that list).
By identifying where a genealogy starts and ends in a text, we can potentially match it to historical timeframes. The Staff text, which repeats dozens of "procreation triplets," appears to interweave cosmogonic time and human time – it traces lineage from the creation of celestial bodies down to cultural heroes or chiefs. For instance, one can segment the Staff into a cosmic genealogy (primordial deities begetting sun, moon, stars, etc.) followed by a royal genealogy (ancestors begetting the first chiefs, and so on).
War Annals and Historical Records
In doing so, the Staff effectively charts a mythical chronology from the dawn of time to the more recent past. While we may not yet assign absolute dates to each "generation" recorded, the sequence order is clear, and some names or events might be correlatable with known lore. For example, the presence of certain glyph combinations on the Staff that parallel the Atua Matariri creation chant (where specific gods produce specific elements) confirms the sequence of creation events it describes.
Likewise, the Staff or other texts might encode the sequence of tribal migrations or battles – Routledge's account that Mamari was "a list of enemy prisoners" hints that part of Mamari (or a similar text) could recount a chronology of warfare, listing defeated foes in order. If glyph 700 (fish/ika) appears in such contexts, it likely marks those individuals as "victims" (since ika in Rapanui metaphorically means a casualty). Thus a string of personal names followed by fish glyphs might be read as a chronicle of successive killings or battles – essentially a war annal with each entry being "Chief X – (made) into fish" i.e. killed.
The Grand Tradition Chant
We have also been able to piece together broader cultural timelines by comparing texts. The discovery that Tablets H, P, and Q carry the same "Grand Tradition" chant in parallel indicates that this chant was important enough to be widely copied. By aligning them, we can fill in missing pieces on damaged tablets and be more certain of the content's structure.
We find that this Grand Tradition includes both genealogical lines and mythic episodes (creation of sun and moon, origin of certain clans, etc.), suggesting it was a master narrative of the Rapa Nui people. Through it, we glimpse a sequence: beginning with cosmogenesis (sky-earth separation, etc.), proceeding through the birth of natural phenomena, and culminating in perhaps migrations or hero stories. It's as if the tablets collectively preserve a layered timeline – from the mythical past to the historic present – encoded in symbolic form.
Conclusion: Reading Rongorongo in Time
Phase 9's focus on temporal and generational analysis has allowed us to read Rongorongo in time. We can see sequences that correspond to actual timelines: the monthly cycle of the moon, the generational succession of leaders, the stepwise events of voyages, and the ordered steps of creation and migration legends.
By respecting the natural patterns in the texts – repeating structures, section markers, and contextual clues – we avoid forcing interpretations and instead let the glyphs reveal their own chronology. The result is a more coherent picture in which the Rongorongo corpus emerges as a set of complementary records: calendars, king lists, epic narratives, and cosmogonies, each preserving a piece of the Rapa Nui past.
These findings, supported by the Lackadaisical Security August research analysis and cross-tablet comparisons, reinforce that Rongorongo was a sophisticated mnemonic system for encoding time – from nightly cycles to generational eras – in the flow of its symbols.
Sources & References
- Lackadaisical Security (Operator). "August Research Analysis" (2025) – Decipherment research comparative tablet analyses of Mamari (Text C), Aruku Kurenga (Text B), Santiago Staff (Text I), Small Santiago (Text G); and cross-references in the Grand Tradition texts H/P/Q.
- Fischer, Steven R. Rongorongo: The Easter Island Script (1997). [Analysis of Santiago Staff genealogical structure and "procreation triplets"]
- Barthel, Thomas S. Grundlagen zur Entzifferung der Osterinselschrift (1958). [Initial identification of lunar calendar in Mamari tablet]
- Butinov, N. & Knorozov, Y. "Preliminary Report on the Study of the Written Language of Easter Island" (1956). [First identification of genealogical patterns on Small Santiago tablet]
- Pozdniakov, Konstantin. Comparative Polynesian and Rongorongo Studies (2007). [Analysis of core sign inventory and allographs]
- Routledge, Katherine. The Mystery of Easter Island (1919). [Ethnographic accounts of tablet contents including "list of enemy prisoners"]
- Lackadaisical Security. "Deciphering the Mamari Tablet (Text C) - Multi-Method Analysis" – https://lackadaisical-security.com/rongorongo-research/rongorongo13.html
- Lackadaisical Security. "Deciphering Tablets H, P, and Q: The Grand Tradition Chant Analysis" – https://lackadaisical-security.com/rongorongo-research/rongorongo34.html
- Lackadaisical Security. "BREAKTHROUGH: Aruku Kurenga Tablet Decipherment" – https://lackadaisical-security.com/rongorongo-research/rongorongo17.html
- "The double-body glyphs and palaeographic chronology in the Rongorongo" – SDU Portal. [Analysis of script evolution and dating]
- Rapa Nui Journal Volume 25 Issue 2 - eVols. [Various articles on tablet analysis and chronology]