One Thousand and One Conjectures

Gratian's Decretum, the twelfth century's great canon-law textbook, was augmented after its making with inserted passages called paleae; the next century's decretal collections (the Liber Extra) codified the new case law flowing through the papal courts. The conjecture is that the paleae…

Until 1215 the Church banned marriage within seven degrees of kinship; the Fourth Lateran Council cut the ban to four. Old canonical and penitential texts kept being copied after the change. The conjecture is that scribes silently repaired the law in transit:…

The Franciscan Rule was locked into a papal bull in 1223; the Dominican constitutions were deliberately kept amendable by annual general chapters. The conjecture is that these two legal fixation modes produced two opposite textual physiologies, measurable in the manuscripts: the bulled…

Guides written for anchoresses — most famously the Ancrene Wisse, first addressed to three sisters — kept being revised for new readers. The conjecture is a directional law of such revision: addressee scope only ever widens (three sisters, then a larger community,…

Inquisition registers record vernacular testimony in notarial Latin, but the Latin skin tears in predictable places, letting Occitan words through. The conjecture is twofold: the tear-points cluster in domains where Latin genuinely lacked equivalents — kinship terms, foodstuffs, and the heretics' own…

When thirteenth-century churchmen wrote against the Cathars, they faced a dualist enemy Augustine had already fought under another name nine centuries earlier. The conjecture is that heresiology ran on template reuse to a measurable extreme: anti-Cathar treatises should cite Augustine's specifically anti-Manichaean…

Every Latin church sang the Office of the Dead, and the exact series of its responsories varied by institution — a known fingerprint. The conjecture explains the fingerprint's uncanny stability: obit endowments were legal contracts specifying liturgy for a donor's soul, so…

The portable breviary compressed the monastic office into a book a friar could carry, and something had to be cut. The conjecture is that compression was systematically confessional in its priorities: hagiographic lessons (saints' lives read at matins) were slashed first and…

Byzantine book epigrams occur at both ends of a codex: dedication verses up front, scribes' colophon verses at the back. The conjecture is that position governs fidelity: occurrences of a formulaic epigram type at the end of a book should deviate from…

When Rome suppressed Spain's old Hispanic (Mozarabic) rite in the 1080s, its books kept being copied in a few Toledo parishes for centuries — but nobody was learning the chant as a living performance tradition anymore. The conjecture is that suppression changed…

Southern Italy and Sicily housed Greek-rite monasteries inside a Latin-ruled church for centuries. New Latin feasts kept being created — and the conjecture is that they seeped into Italo-Greek service books on a stable clock: each Latin-origin observance appears in Greek liturgical…

Nicholas of Lyra, the fourteenth century's most influential Bible commentator, famously cited 'the Hebrews' — above all Rashi. Rashi's own commentary mixes plain-sense explanation (peshat) with homiletic midrash roughly half and half. The conjecture is that Lyra operated a tight one-way filter:…

The Latin Church numbered the Psalms by the Greek reckoning; the Hebrew Bible numbers them differently, one ahead through most of the Psalter (Psalms 10 through 146). The conjecture is that this dual numbering left a diagnostic scar across Latin religious literature:…

The scholastic 'thematic' sermon worked by division: split the thema verse into members, subdivide the members, rhyme the joints. The conjecture is that division count followed a full boom-and-bust curve, not a plateau: mean divisions and subdivisions per sermon inflate steadily through…

Byzantium's grand sung sermon, the kontakion, shrank in liturgical use to a stub — a prelude and single stanza — while the kanon, a different hymn form, came to dominate morning worship. The handbooks state the displacement; the conjecture makes it a…

Papal canonization inquests interviewed witnesses and compiled miracle lists that look like censuses of the supernatural. The conjecture is that they were nothing of the kind: they were quota-driven collections that stopped when sufficiency was reached, so miracle counts across dossiers should…

The Latin mass keeps a handful of untranslated fossils — Kyrie eleison in Greek; Amen, Alleluia, Hosanna, Sabaoth in Hebrew — and translated everything else. The conjecture is that the fossils are not random survivals but obey one exceptionless rule: every non-Latin…

The Biblia pauperum pairs each Gospel scene with two Old Testament foreshadowings — the most widely diffused typological scheme of the later Middle Ages. Scholars naturally derive its pairings from the exegetical tradition of the Glossa and the theologians. The conjecture is…

The Paris stationers' taxatio of 1275 and 1304 fixed the rental price of exemplar peciae, so market demand could not show in price; it could only show in how many exemplars of a work the trade stocked. The surprising connection is between…

Aquinas, like every schoolman, first met most authorities second-hand, through Peter Lombard, Gratian, and florilegia. The surprising claim joins the commercial pecia system to the intimate question of what a master actually read: an authority converts from mediated to direct citation over…

The verbal concordance built by the Dominicans of Saint-Jacques in the 1230s-1250s turned the Bible from a remembered flow into an alphabetically addressable database, and this conjecture claims the tool left a statistical residue in the texts written with it. Verses fetched…

A quodlibetal disputation was live theatre, with questions taken from the floor twice a year, while the Summa was composed at a desk surrounded by books; this conjecture joins the psychology of retrieval under time pressure to citation statistics. Live genres should…

The quaestio format requires manufactured disagreement: before a master can resolve anything he must first find authorities that seem to say the wrong thing, and apparent contradiction is rare and must be hunted in obscure texts, while agreement is abundant in the…

If citations tallied evidence, their count per article would be noisy and over-dispersed, swinging with how much support each conclusion happens to have; if the quaestio is a fixed-size packet, the counts should be clamped like lines in a sonnet. This conjecture…

This conjecture joins the liturgy-like fixity of the quaestio to network statistics: authorities held stable positional roles, some habitually opening the difficulty in the objections, others sealing the determination, and an authority's seat, not just its frequency, encoded its epistemic rank. Masters…

In an economy where authority accrued with age, an author dead a hundred years sat at maximum disadvantage: too dead to answer as a colleague, too recent to count as an auctor. This conjecture therefore predicts a bimodal age distribution of cited…

This conjecture claims the mediated share of citations is not a rising function of an authority's age but an inverse-U: the very oldest authorities (Scripture, Aristotle, Augustine) were owned and read whole as curriculum texts, near-contemporaries circulated as fresh complete works, but…

Textual critics reconstruct manuscript families from shared errors; this conjecture applies the same logic to citation, claiming that scholastic misattributions are not noise but the fingerprint of the retrieval channel. A quotation inherits the false ascription its carrying florilegium or glossed book…

When a scholastic author cites several passages from one source work inside a single question, direct reading tends to harvest them in the source's own order, because a reader's eye moves forward through a codex, while florilegial retrieval yields the anthology's re-sorted…

A good objection was hard capital: finding an authority who appears to contradict the received position took rare hunting, while supporting quotations lay everywhere, so the dialectical armory was small, curated, and long-lived. This conjecture claims the asymmetry is measurable as differential…

This conjecture claims scholastic diligence was tactically allocated: when writing against an opponent, a master re-verified the opponent's proof-texts in full copies, because a misquoted enemy loses the debate, while continuing to take his own side's supporting authorities on anthology trust within…

Everyone knows Aquinas synthesized Aristotle and Augustine; this conjecture claims the synthesis happened between articles, not within them. At the article level the two supreme authorities should behave like ions of like charge, repelling: an article argued in Aristotle's idiom rarely also…

Averroes entered Latin argument as an attachment, summoned to unlock a resistant Aristotle passage, while Avicenna, absorbed earlier and as a system-builder in his own right, circulated free-standing; this conjecture claims the difference is a measurable topological property of citation, not a…

This conjecture claims citation precision is a by-product of the citer's own lecturing: the works of Aristotle that Aquinas formally commented get cited elsewhere in his corpus with numbered book-and-chapter addresses, while uncommented works get the vague appeal to the Philosopher. The…

This conjecture joins the twelfth-century schools to the thirteenth-century university through a bottleneck claim: Lombard's Sentences, Gratian's Decretum, and the Glossa ordinaria acted as the citation economy's admission gate, so a patristic authority not excerpted by them stayed effectively invisible to direct…

Student reportationes, taken on wax tablets and rough quaterni, preserve what a scholastic classroom actually sounded like, and this conjecture claims the famous citation apparatus of scholastic books was largely added afterward at the desk: in the written ordinatio, anonymous appeals become…

Two storage systems fed scholastic quotation: verbatim memory, installed by years of chanting the Psalter in choir, and the consulted book or anthology, whose text was copied and freely re-worded. This conjecture joins a plain fact about error processes to citation fidelity:…

Pagan moralists and pagan poets were equally available in the schools, and the poets were more heavily taught in the grammar classroom, yet this conjecture claims the arts-theology boundary worked as a genre firewall with a moral pass: prose moralists like Seneca…

The standard picture has copying demand driving citation: popular books get quoted. This conjecture reverses the arrow for the university period, joining modern bibliometrics' lead-lag analysis to medieval manuscript counts: a work newly promoted in a dominant master's citations generated rental and…

This conjecture claims scholastic self-reference is directional in a way that maps intended curriculum rather than composition history: the occasional works, disputed questions and opuscula, point the reader elsewhere toward the systematic works, while the systematic works rarely point back down, so…

University loan chests took books in pawn, and the surviving cautio registers record what students and masters could stand to lose for a term; this conjecture joins pawnbroking economics to library history, claiming the pledge record is a photographic negative of the…

Medieval book curses, the anathemas scribbled on flyleaves against thieves, are usually read as generic piety; this conjecture reads them as targeted insurance and joins them to the second-hand book market. A curse is worth writing where theft is likely, and theft…

This conjecture claims subject classification in medieval library catalogues is a scale-triggered technology rather than an intellectual fashion: below a threshold collection size the librarian's memory is the catalogue, and lists are kept by donor or accession, but above the threshold memory…

The university taxatio was administratively additive: titles entered the stationers' price list when demand appeared, but were rarely struck off when demand died, so successive lists accreted a fossil layer of dead stock. This conjecture joins regulatory economics to the two surviving…

Both Latin scholasticism and the Islamic madrasa built commentary stacks on base texts, but their conservation engineering differed: the madrasa's matn was memorized, present in every student's head at every layer, while the Latin Sentences was a rentable written exemplar that a…

Latin scholastic authority traveled chained to manuscript copies, but the Jewish responsa system gave halakhic authority a second transport layer: opinions moved in letters answering distant queries, then were cited from those letters onward. This conjecture joins postal-network epidemiology to authority diffusion,…

Pecia production copied a book from independently rented quire-units, while ijaza and sama' transmission audited a text in continuous certified read-back sessions; this conjecture claims the two quality-control regimes leave physically different error landscapes on the page. Because exemplar peciae circulated and…

This conjecture claims a medieval library's duplicate ratio is an institutional signature legible without reading a single statute: houses that taught bought throughput, multiple copies of the same core texts for simultaneous users, while contemplative houses bought coverage, one copy of many…

This conjecture claims the physical shelf order of a house's books acted as a retrieval prior on its authors' minds: works stored adjacently, in the same armarium division or press-mark run, were consulted in the same working sessions and therefore co-cited, so…

The Tosafists laced their Talmud commentary with cross-references between tractates, and this conjecture claims those links follow the yeshiva's teaching calendar rather than the canon's own arrangement: tractates studied in sequence in the school cycle get linked in commentary far more often…