3 November 1967
stated · doubtful · preferred
Source
Neville lectures catalog #382
Reasoning
|| v1.1/l7/propagate-node-refutation: lowered `certain` -> `doubtful` under A-121. THE CONTRADICTION: node 1915, the lecture this claim was copied to, holds the identical date 1967-11-03 as REFUTED, and records why — "Copied without semantic change from linked historical event 381. || v1.1/l2/w2b: This pass's chrome dateline reads 12 May 1969 for this transcript, not 3 November 1967. Neville re-delivered this title repeatedly; nothing in the text refutes a separate 1967-11-03 delivery having occurred, so the catalog #382 claim is lo". A delivery date refuted on the lecture cannot stand as `certain` on the lecture event it was copied from. ⛔ Lowered only, never refuted: A-121's floor is `doubtful`, and nothing here is deleted — the date, its type, its source note and the prior confidence (certain) all survive, so this reverses from the ledger.