Date (happened)
c. September 1966
(probable)
passage 543135 (lecture nid 1756), 'a year and almost 10 months ago' relative to a lecture whose most specific delivery claim (media 170, certain) dates it 1968-07-15
Told / reported
15 July 1968
delivery claim d1 on lecture nid 1756, dated 1968-07-15 by a lecture advertisement (media 170) with weekday-sequence corroboration