Neville meets a longtime New York lecture attendee
Date (happened)
c. 1946
estimated · possible
Reasoning
"Twenty-odd years" is a hedged numeric phrase (trap 8 tier 1: numeric and specific, but hedged like 'about'/'roughly'). Anchor is node 1240's 1966-02-22 delivery date, which is a single-sourced, unreviewed legacy claim (legacy_event_claim, state legacy_unreviewed) with no independent second citation directly given to me for this node -- a typical single-sourced legacy row, which per rule 16/trap 8's own comparison caps well below its nominal certain. The phrase's own hedge ('-odd') is a second, independent cap. Taking the lower of the two caps lands at possible, not probable, per trap 8's explicit contrast (probable was earned there only because the anchor was 'exceptionally strong', which this one is not). Arithmetic: speaking year 1966 minus 20 = 1946; year only, since the phrase gives a duration in years, not months, so no month/day is carried over from the anchor's own February date. Flagging explicitly: '-odd' implies somewhat more than twenty years may have passed, which would put the true first meeting earlier than 1946; I am recording the direct arithmetic result rather than inventing a range, consistent with tier 1's method, and leaving the possible-not-probable confidence to carry that residual doubt.