Neville's October 1964 return to lecturing
Date (happened)
6 October 1964
unresolved
6 October 1964
estimated · probable · preferred
Reasoning
Neville names the exact day of his scheduled return, 'the 6th of October', at the opening of a lecture whose own delivery date is certain, 1964-05-26; the October he means is trivially the same calendar year, no ambiguity in context, giving 1964-10-06. This sharpens the corpus's existing title-derived 1964-10 (month-only, probable) claim to day precision. Held to probable rather than certain because this is an announced plan, not a record of the return having actually happened; the year is contextually rather than literally stated, so type is estimated rather than stated.
October 1964
stated · probable
Source
derived from the event's own title: "Neville's October 1964 return to lecturing"
Reasoning
The event held NO date claim of any kind; its own title states 1964-10 (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.
Told / reported
26 May 1964
estimated
Reasoning
The announcement of the October return was made from the platform on the night the lecture was delivered, which the standing certain delivery claim dates to 1964-05-26. This is the telling of the plan, distinct from the return itself which the plan names as 1964-10-06.