One Thousand and One Conjectures

The Old Tibetan Annals log the empire year by year — where the court wintered and summered, censuses taken, councils convened — implying a running record kept by a court that never stopped moving. Join the Annals to the mobile-state problem: an…

At Turfan the same Sogdian language was written in two scripts: the special Manichaean script and the ordinary Sogdian script. This conjecture says the script boundary is a clergy-laity boundary, not a linguistic one — the Manichaean elect wore their script like…

We possess almost nothing written inside the Turkic and Uyghur steppe empires, yet the oasis corpora do contain Turkic-related documents. Join sampling theory to frontier history: the oases only ever received the interface layer of steppe writing — letters, passes, treaties, trade…

Travel passes — the Chinese guosuo, Tibetan route permits, later safe-conducts — existed so a traveler could cross checkpoints run by strangers. Join diplomatics to interoperability economics: a pass is only useful if the next checkpoint, possibly under a different regime, can…

The Tibetan canon's mainstream lines were repeatedly edited at powerful central monasteries, while small local Kanjurs survived in peripheral valleys. Join textual criticism to the geography of power: central lines lose old readings twice over — once to editorial smoothing, once to…

Colophons name patrons; texts serve liturgy — and at Turfan and Khara-Khoto the two often speak different languages, a vernacular donor statement riding on a liturgical-language book. Join the sociology of donation to the book trade: merit is a purchase, and the…

The Kül Tegin monument carries a Chinese eulogy supplied by the Tang court on one face and a Turkic account on the others — and the two famously say different things. This conjecture generalizes the observation into a rule of Inner Asian…

The westward spread of paper is habitually credited to Buddhism's appetite for copying, yet the earliest paper documents west of China that we possess — the Sogdian Ancient Letters of c. 313 — are commercial mail. The conjecture: paper moved west in…

The Tangut state translated an enormous Buddhist canon into a freshly invented script within roughly half a century — a feat impossible for lone scholars and therefore, structurally, the output of a standing translation bureau running parallel teams under style discipline. Join…

Ecologists estimate how many species they have never seen by comparing two independent samples of a population, and the Maya sign inventory can be treated exactly the same way: the four surviving codices are one sample of the script, and the stone-monument…

Species-richness estimators of the Chao family infer how many species were never observed from the ratio of once-seen to twice-seen types, and the surviving Maya codices permit exactly this move: treat each self-contained almanac or table unit as a type, and each…

Archives that keep duplicate copies accidentally build a population estimator into their own holdings: if khipu accounts were made in matching sets — one cord record retained locally, a counterpart carried up the administrative line, a practice consistent with matching-number khipus reported…

What survives of the Andean khipu record survived overwhelmingly through graves — cords bundled with the dead in the dry coastal desert — while the state's central cord archives at administrative centers were destroyed, dispersed, or rotted in wetter highlands. Grave goods…

The three long-known Maya codices — Dresden, Madrid, Paris — all reached Europe through colonial-era hands, which means they passed a selection filter run by sixteenth-century collectors and shippers; the fourth (the Codice Maya de Mexico, long contested and now broadly accepted…

The four surviving Maya books are all divinatory-astronomical, while thousands of surviving stone texts are overwhelmingly dynastic-historical; the standard picture files this as two genres and moves on. The sharper structural claim is that the survival filter's narrowness can be measured: the…

The Paris Codex carries a sequence of pages organized by the katun, the twenty-year period that also structures history-telling in the colonial Yucatec Books of Chilam Balam; the usual observation connects those two and stops. The structural conjecture goes further: the Paris…

The physical Maya codices are Postclassic objects, but astronomical tables must anchor themselves to absolute dates, and anchors fossilize: a copied table drags its original entry dates along with it, patched by correction increments rather than recomputed from scratch. So the distribution…

An eclipse-warning table of the sophistication preserved in the Dresden Codex cannot be built from one generation of skywatching: fixing long lunar cycle constants to the precision the table embodies structurally requires observational records spanning centuries. That requirement is an existence proof…

The Madrid Codex is known to carry the work of multiple scribal hands, and the structural conjecture is about where those hands change: hand transitions should align with almanac boundaries, revealing a book assembled from self-contained page-unit modules by a workshop —…

Maya stelae state their dates redundantly — an absolute Long Count position plus chained Distance Numbers linking event to event — and sometimes the arithmetic visibly fails to check. The conjecture is that these failures are transcription errors from paper drafts rather…

If Maya monumental texts were composed on screenfold paper and then transferred to stone, the paper's page module should leave a metrical fossil in the stone: text lengths, counted in glyph blocks, should cluster at multiples of a standard layout unit instead…

Maya monuments routinely record events that happened long before the stone was dedicated, and the distribution of that retrospection gap is a probe of what sculptors' patrons could actually consult. Oral memory has a well-documented horizon of roughly two to three generations;…

Classic Maya artists sometimes signed their work — signature phrases occur on carved monuments and painted vessels — and a signing culture accidentally runs a census of its own workforce: capture-recapture on named artists across signed objects estimates the population of scribes…

The Maya syllabic grid — the consonant-vowel table that epigraphers have been filling in for decades — still has empty cells, and the standing question is whether those cells were empty in the script or are empty only in the surviving sample.…

Maya monuments name other sites — captures, overlordships, royal visits — which yields a political network; independently, glyphs show site-level formal variants, which yields a paleographic similarity network. The conjecture is that these are the same network: subordinate courts write like their…

Monumental writing among the Maya was a court technology, and the number of inscribed monuments per site is wildly unequal — a fact usually reported, not modeled. The conjecture: the inequality is the fingerprint of contagious adoption plus cumulative advantage — sites…

The surviving Maya codices are laid out as tabular instruments — grids, columns, captioned pictures inside almanac frames — while Maya monumental texts run as continuous double-column discourse. Layout is genre made visible, so the near-total absence of continuous-discourse layout in the…

The Mixtec screenfold codices are unusual among surviving pre-contact American books: several of them narrate overlapping dynastic genealogies, giving the only measurable case of the same content transmitted through parallel manuscript lines in the pre-print Americas. Treating the shared genealogical spans across…

Maya codices carry a phonetic-logographic script packed into block grids; Mixtec codices carry pictographic narrative on open, red-ruled pages read along a winding path. These are two engineering solutions to the same problem — putting court knowledge onto bark and hide —…

The Andean khipu — knotted cords encoding by knot type, knot position, cord color, and ply — and the Maya glyph block are the Americas' two great non-alphabetic information carriers, and they can be compared on equal terms with the plainest of…

A minority of catalogued khipus violate the standard decimal place-value knot grammar established for Inka accounting cords; whether these anomalous khipus are narrative, mnemonic, ritual, or something else remains contested. The structural conjecture sidesteps the decipherment fight entirely: if the anomalous class…

Colonial sources describe the Inka census as nested decimal units of households — tens, fifties, hundreds, on up — under a ladder of accountable officials, and khipus whose top-cords sum their pendant groups are the physical instrument of that accounting. The conjecture:…

The Inka empire was barely a century old at contact, stitched over far older Andean polities, and cord record-keeping demonstrably predates the Inka. The conjecture: catalogued khipus preserve regional accents — provenance-linked conventions of color usage, ply and knot direction, and cord…

A bureaucratic technology reaches maturity when the record's container is manufactured before its content exists — the blank form, a step usually credited to early modern European paperwork. The conjecture: many khipus were strung, spaced, and even color-sequenced as blanks before any…

Dated Hebrew colophons record the day a manuscript was completed, and the Jewish week and festival calendar imposed hard deadlines on scribal labour: no writing on the Sabbath, and liturgical books that were only useful if delivered before their festival. The conjecture…

Late-medieval Hebrew scribes liked to date books by chronogram — a Bible verse or pious phrase whose letters, read as numerals by gematria, encode the year. But not every year has an apt verse: some numbers spell familiar, resonant words, while others…

Hebrew books came from two channels: commissioned copies by professional scribes and copies owners made for their own use, and colophons usually say which. A commercial scribal market needs stable communities with clients, credit, and reputations, whereas an owner with a borrowed…

Paper entered Europe from the Islamic world, and Jewish communities sat astride that boundary, with correspondents, in-laws, and book-suppliers on both sides of it. The conjecture is that dated Hebrew manuscripts adopted paper systematically earlier than Latin manuscripts produced in the same…

A minority of Hebrew colophons record both when the work began and when it ended, and the database records each book's extent, so copying speed in folios per day is directly computable for a real population of medieval scribes — a measurement…

Many Hebrew colophons date a book in more than one system at once — the era of Creation, the Seleucid count, sometimes the Muslim or Christian year, plus the weekday and the week's Torah portion. Converting between these systems requires either live…

Hebrew script types are named for regions — Sephardic, Ashkenazic, Italian, Byzantine, Oriental — but expulsions kept tearing scribes loose from the landscapes their hands were named for. Because SfarData records both the script type and the actual place of copying, the…

Before a scribe wrote a line, the page was ruled, and ruling technology changed: hard point, coloured plummet, and in the Islamic world the mastara, a string-and-board template that rules a whole page in one press. Hebrew manuscripts were produced on both…

Beneath script, which a scribe can consciously adapt, lie codicological habits almost nobody thinks to change: how many leaves make a quire, how flesh and hair sides of parchment face each other, where the pricking goes. These conventions differed by region —…

Everything we know statistically about dated Hebrew manuscripts flows through colophons, and colophons live in the most dangerous real estate in a codex: the final leaves, first to be lost to wear, damp, and detached quires. Dated manuscripts are therefore not a…

The history of Hebrew books is told as a history of burnings — Paris 1242, confiscation after confiscation — and the natural assumption is that these catastrophes carved visible craters in the surviving population. Set against them is the quiet attrition that…

Two filters selected which medieval Hebrew books reached us: communities preserved what they kept using, and Christian authorities confiscated what they condemned — above all the Talmud — much of which went to binders as parchment scrap, now documented as thousands of…

A Hebrew manuscript reused in a binding carries two clocks: the palaeographic date of its writing, and the date of the host volume it was bound into, often printed and precisely dated. The interval between them is the time the book survived…

Binders wanted large, stiff sheets of parchment for covers, spine-linings, and pastedowns, so the recycling channel did not sample the Hebrew book population evenly: a large-format Bible or Talmud yields useful sheets, a pocket prayer book yields little worth the knife. The…

Hebrew binding fragments turn up in places with thin or no medieval Jewish settlement — Scandinavian archives are a famous case — and the instinct is to read every find-spot as a trace of Jewish presence. But binders bought waste parchment through…

Hebrew Bibles once carried competing vocalization systems — Tiberian, Babylonian, Palestinian — until the Tiberian system won so completely that intact codices with the losing systems are rarities. But the fragment channels did not run the winner's filter: the Geniza and European…