Richard Feynman publishes the discussed physics principle in 1949
Date (happened)
1949
stated · probable · preferred
Source
derived from the event's own title: "Richard Feynman publishes the discussed physics principle in 1949"
Reasoning
The event held NO date claim of any kind; its own title states 1949 (year precision, parsed as "year only"). ⚠ 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.
1949
stated
Reasoning
Passage 541616 explicitly gives 1949, and the following passage identifies the scientist and writing as Richard Feynman's. This supports a year-precision source-backed claim without inventing month or day.
Told / reported
15 June 1970
stated
Reasoning
Passage 541616 directly carries the report in lecture 1512. The carrier has concordant catalogue and recovered byline claims for 1970-06-15, both certain, so the told claim inherits that exact date.