Feasts cross the altar rail late

Status: Anticipated · untested

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).

This is a proposed connection between two domains, generated by a language model. It is not an article and not evidence: it sits below the evidence/publication boundary. A quantitative prediction and a named kill-dataset are attached (when registered) so the claim stays falsifiable rather than merely evocative.

Claim (verbatim)

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 manuscripts of the region with a lag of roughly two to four generations behind local Latin books, and, crucially, the feasts arrive in the same order they arrived in the Latin calendar, preserving sequence while delaying it. Greek communities adopted their neighbors' devotions only after those devotions had become the unremarkable furniture of the local religious landscape. If it holds, the lag length is a direct thermometer of inter-rite boundary strength, comparable across places and centuries, and calendar contents can date and localize Italo-Greek books with new precision.

Prediction clause (verbatim)

Primary clause: for datable Latin-origin feasts attested in Italo-Greek liturgical manuscripts, the adoption order matches the Latin adoption order (rank correlation near 1), with individual lags falling predominantly in the 50-150 year band. Secondary: lags shorten after the Norman consolidation and lengthen again after 1300.

Kill-dataset (verbatim)

Arranz's edition of the Typikon of the Monastery of the Saviour at Messina with Rocchi's catalogue of the Grottaferrata manuscripts (Codices Cryptenses).

Nobody has run this test. The kill-data is named above. If you can run it — or you know the paper that already settles it — claim the kill or submit the prior. Kills and priors are credited here, by name, as they come in.

In the atlas

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Provenance

Run: Fresh agent generation · model: claude-fable-5

This packet was produced in a single blind Write from model-internal knowledge only, with no repository reads, web access, database queries, or any tool call other than this Write.

Novelty / leakage triage

anticipated in the literature — this exact test has never been run

Latinization of Italo-Greek liturgy is documented at the level of centuries-long accretion (Grottaferrata's absorbed Latin elements; imposed Latin observances), but the ordered-lag clock — Latin feasts entering Greek books in Latin adoption order with 50-150 year lags as a boundary thermometer — is un-run.

'Italo-Greeks', Catholic Encyclopedia (Latin influence on Greek-rite liturgy in southern Italy)

Predictions

No prediction registered yet.

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