Neville gives a five-lesson course in February 1948
Date (happened)
between 2 February 1948 and 6 February 1948
probable
between 2 February 1948 and 6 February 1948
conclusion · probable
Why
dc1-agreement-20261004, pm-actor-551 (PM 8702)
Reasoning
All 2 claims agree on 1948-02-02–1948-02-06: derived from the event's own title: "Neville gives a five-lesson course in Febru; node:1802.
between 2 February 1948 and 6 February 1948
estimated · probable · preferred
Reasoning
The lecture's own delivery date is certain (1948-02-02, catalogue #1), independently consistent with a bare-year '1948' chrome dateline recovered from the transcript head. The event's witness (passage 544849, r0) frames this lecture as the first of 'this week in these five lessons'; the lecture's processing notes record the course running through Friday. 2 February 1948 computes to a Monday (Doomsday algorithm: 1948's doomsday is Sunday 29 February; counting back 27 days to the 2nd lands on Monday), so a Monday-Friday five-lesson week runs 1948-02-02 to 1948-02-06, matching the 'ends Friday' note. Capped at probable rather than certain because the week's end date is not itself printed in the text but inferred from the course's known Monday-Friday structure; this supersedes the earlier title-derived month-only placeholder with the specific week the underlying evidence actually supports.
February 1948
stated · probable
Source
derived from the event's own title: "Neville gives a five-lesson course in February 1948"
Reasoning
The event held NO date claim of any kind; its own title states 1948-02 (month precision, parsed as "month year"). ⚠ A title in this corpus is a DERIVED artefact — an earlier pass wrote it from the passage text — so this claim is title-derived and is marked as such rather than cited as a source document; the underlying text remains the real evidence and would supersede it. Confidence `probable`, never `certain`, for that reason. Precision is never inflated beyond the title's own wording. CALIBRATION (run v1.1/l1.4/titledate, against the 489 events that already hold an independent preferred date): day 96.1%, month 94.1% agreement. Titles naming a REFERENCE event rather than the event itself ("before", "after", "during the week of", "per ... lecture") are refused outright and never reach this write — reading an anchor as the date is the same laundering phase3b committed when it wrote telling dates onto events.