Date (happened)
  • 1971 (probable)
    Neville lectures catalog #1090 (provisional source)
  • 4 October 1971 (possible)
    passage 553700 (lecture nid 2135), primary evidence for the lecture's own phase4 delivery claim (opening of a series, Saturday-preceding advertisement, Monday/Friday schedule ending Friday 10 December)

Lecture catalog #1090 — text: HAVE (PROVISIONAL: youtube-caption source, pending verification)