On 4 September 1968, Colonel Raymond S Sleeper wrote to Dr J Allen Hynek asking for suggestions to define areas of scientific weakness in Project Blue Book.
On 31 October 1968, the ColoradoUniversity report on UFOs was submitted by J R Smiley (the President of the University of Colorado) to Harold Brown (Secretary of the Air Force).
On 7 October 1968, Dr J Allen Hynek wrote a reply to Colonel Raymond S Sleeper’s request for suggestions to define areas of scientific weakness in Project Blue Book.
On 2 November 1968, the “Doctor X” UFO encounter allegedly occurred, involving claims of healing. (Commonly referred to as “The case of Dr. X.” or “The healing of Dr X.”).
This incident is Case 77 in Isaac Koi's "Top 100" article, since it was referred to in 38 of the books covered by that article.