AI-generated conjecture · below the evidence/publication boundary
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The statute restarts the calendar
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Claim (verbatim)
English private deeds of the twelfth and thirteenth centuries are famously undated, and then dating clauses flood back around 1300; this conjecture joins that curiosity to limitation law. A date on a deed was legally inert while courts reckoned title by living memory, and became a weapon the moment statutes fixed cut-off years for actions (1275, refined 1293): now a written year could put you on the safe side of a line. Scribes wrote what courts rewarded, so the re-adoption of dating should be a sharp change-point at the statutes โ steepest among parties most exposed to litigation โ not a slow fashion in careful record-keeping. If this holds, the humble dating clause becomes an index of procedural law penetrating everyday practice, and the 'scribes gradually became more precise' story breaks.
Prediction clause (verbatim)
Primary clause: in DEEDS, the share of private charters bearing internal dates, plotted by year, shows its single largest structural break between 1272 and 1300. Secondary clauses: the dated share rises from under 20% to over 70% within 40 years of the break, and the rise is faster for sales and quitclaims (litigation-exposed) than for pious grants.
Kill-dataset (verbatim)
DEEDS, whose methodology of dating undated charters makes the internally-dated versus undated distinction itself a clean analyzable variable.
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Provenance
Run: Fresh agent generation · model: claude-fable-5
Composed blind by claude-fable-5 with zero tool use and no information ingress of any kind; the packet was emitted as a single JSON text message for the orchestrator to persist.
Novelty / leakage triage
anticipated in the literature โ this exact test has never been run
The chronology (private deeds undated until dating became customary early in Edward II's reign) and the legal-memory frame (1189 limit fixed by Westminster I 1275) are both published, anticipating the connection, but the structural-break test locating the transition at the limitation statutes in DEEDS, with litigation-exposed act types leading, is un-run.
Predictions
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