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The year of sixty diplomas
Status is derived only from the shepherd-authored triage/prediction data above -- community submissions and claims are a separate overlay and can never change it (see the participation panel below).
Claim (verbatim)
In 956 King Eadwig, a teenager in his first regnal year, issued diplomas at a rate never matched before or after: around sixty survive dated to that single year - a total that beats entire earlier decades - and Simon Keynes and others read the burst as a political land-distribution, a contested accession buying its supporters in bookland. For the study of loss the year is not a curiosity but a calibrator. The corpus's deepest ambiguity is that a thin year might mean little was issued or much was lost; 956 shows how to break the degeneracy, because its spike appears concurrently across many unrelated archives - Abingdon, the Winchester houses, Worcester, Burton, Wilton, Shaftesbury, Glastonbury and more - and no survival accident synchronizes dozens of independent custodial lines. Cross-archive concurrence is therefore the signature of production, archive-confined absence the signature of survival noise, and the 956 spike is the positive control that licenses every per-year inference in this wave: where the catalogue's counts move together across custodians, we are reading the chancery's output; where they move alone, we are reading the fate of chests. A secondary implication follows for the corpus's shape: single-year anomalies of this size mean issuance was pulsed by politics, so smooth interpolations of 'normal' production between surviving counts systematically misestimate what stood in the archives that died.
Prediction clause (verbatim)
Prediction: items the Electronic Sawyer dates precisely to 956 will number at least 45 (primary clause: the >=45 single-year count; the verdict follows it - the expectation is around sixty), at least three times the count of any single year before 940, and will be spread across at least 10 distinct archives. Disambiguation pinned: only items dated precisely 956 count, not ranges spanning it; authenticity is not filtered, but a sensitivity count excluding spurious items is reported alongside. Coverage guard: the test voids if precise single-year dates are unavailable for more than 20 percent of tenth-century items.
Kill-dataset (verbatim)
Kill: the Electronic Sawyer date and archive fields - a single-year count for 956, a maximum over pre-940 years, and a distinct-archive spread for the 956 set.
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How this item is catalogued
Catalogue tags are curatorial metadata that make the conjecture findable. They are not findings, not a novelty verdict, and naming a source family is not a promise that the data exist or are accessible. Each dimension below says whether it was assigned, reviewed with none applying, uncertain, or not yet reviewed, and who recorded it.
- Place & era tags — Assigned
- Europe; Medieval Tagged by claude-fable-5
- Dating — Phenomenon
- Dated c. 950 CE – 960 CE King Eadwig's single-year diploma-issuing burst, explicitly dated '956' CE in the claim, bracketed against the pre-940 CE baseline. Tagged by claude-sonnet-5 + claude-fable-5 (gate)
- Subject — Assigned
- Institutions, law & bureaucracy (from the generation section)
- Finer subject topic — Assigned
- Institutions & prosopography The object is a royal chancery's documented output across institutional archives, squarely that page's subject. Tagged by claude-opus-5 draft (requested max effort) adjudicated by claude-fable-5-1 driver, lane 1da5; runtime not independently attested
- Claim level — Assigned
- Record claim The prediction is a single-year diploma count and its spread across independent custodial lines, a claim about pre-modern chancery output against archive fate. Tagged by claude-opus-5 draft (requested max effort) adjudicated by claude-fable-5-1 driver, lane 1da5; runtime not independently attested
- Method — Reviewed — none applies
- A single-year count of at least 45, a 3x margin over any pre-940 year and a spread across at least 10 archives; the production-versus-preservation decomposition is argued from those counts, never computed. Tagged by claude-opus-5 draft (requested max effort) adjudicated by claude-fable-5-1 driver, lane 1da5; runtime not independently attested
- Evidence source — Assigned
- Charters & chanceries Kill test loads the Electronic Sawyer date and archive fields for a 956 single-year count and a distinct-archive spread. Tagged by claude-opus-5 draft (requested max effort) adjudicated by claude-fable-5-1 driver, lane 1da5; runtime not independently attested
- Research stage — Idea — no test designed
On Inferpedia
This conjecture is linked to the following pages on Inferpedia, an encyclopedia of the missing — working atlas pages, some still early scaffolding.
Provenance
Run: Fresh agent generation · model: claude-fable-5
Fresh blind generation by claude-fable-5, 2026-07-18, Anglo-Saxon charter wave anchored to the Electronic Sawyer (esawyer.org.uk): every kill names an open catalogue or standard edition and a countable operation - survival-form census, archive-concentration geometry, mentioned-but-not-extant joins, document-type concentration, presence/absence differentials - with thresholds far from 1 and explicit coverage guards separating loss from the accidents of ecclesiastical archive survival. Disjointness discipline: the w21 law wave (2026-07-10) already owns, on the same instruments, forgery-production timing (w21-001), forged-date targeting of archive gaps (w21-006), interpolation-vs-fabrication typology (w21-011), post-destruction restorative forgery (w21-018), authenticity-by-transmission-form adverse selection (w21-029), linguistic updating of boundary clauses (w21-014), cartulary content triage (w21-007), and endorsement campaigns (w21-030); this wave's item 7 (cross-archive spuria concentration, pure catalogue geometry, no timing or causality claim), item 1 (marginal single-sheet share, no authenticity cross), item 12 (cross-archive lease-type concentration, deliberately framed as the calibrating exception to w21-007), and item 14 (omission of bounds in late transmission, not updating of surviving bounds) reuse those instruments under different countable operations, flagged here. w15-004 owns capture-recapture population estimation on charters; item 4 measures custodial-line overlap as a fragility share and makes no population estimate. Drops during generation: a royal-registry-zero census (threshold degenerate near certainty), a folkland undocumented-tenure item (not countable), a nunnery-archive census (adjacent to w23 women territory and the Veiled Women join is not yet data), an Anglo-Saxon wills concentration item (Bury registry join uncertain), and a Peterborough pre/post-refoundation survival cliff (collides with w21-018). Items 9, 10, and 11 carry the honesty rule as 'Kill (not yet built)' - the instruments are in print but the item-level joins are not yet datasets.
Novelty / leakage triage
already answered in the literature
The 'sixty diplomas of 956' is perhaps the best-known single number in Anglo-Saxon diplomatic: Keynes counts, groups, and interprets the c. 60 diplomas of Eadwig's first year, notes that the year outproduces any other in the corpus, and tabulates its attestations across the many receiving archives in the Atlas - the >=45 single-year count and the >=10-archive spread are stated outright in print. Only the formal 3x-any-pre-940-year margin is left as a read-off from the same printed tables.
Sources cited by the triage
- S. Keynes, The Diplomas of King Æthelred 'the Unready' 978-1016 (Cambridge, 1980), on the diplomas of 956
- S. Keynes, An Atlas of Attestations in Anglo-Saxon Charters, c. 670-1066 (Cambridge: Department of Anglo-Saxon, Norse and Celtic, 2002)
Predictions
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