Date (happened)
before 10 October 1969
(possible)
passage 540939 (lecture nid 1487), 'like the one which recently sold for over a million dollars', tagged as Temporal reference 'recently' at confidence=certain
Told / reported
10 October 1969
(doubtful)
preferred delivery claim d0 on lecture nid 1487: 1969-10-10, certain, corroborated by documented Friday lecture schedule