Anchor cases of the 1960s include the 24 April 1964 Socorro landing-trace case (police officer Lonnie Zamora's first-person report), the September 1965 Exeter, New Hampshire incident, the 1966 Westall school encounter in Australia, and the August 1967 Cussac case in France — a case that GEIPAN's predecessor Bureau d'Enquêtes considered formally unexplained.
The CIA's institutional role in the decade is most legible in the 1953 Robertson Panel's downstream effects — but the 1966 release of a redacted version of the panel's report (under FOIA pressure from amateur researcher Donald Keyhoe) is itself part of the 1960s record.
Why this matters. The Condon Report's recommendation against further USAF UFO study, and Blue Book's closure on 17 December 1969, opened the institutional gap that would persist until AATIP in 2007. The 1960s is when the modern public record narrows.