A sentence in the preface of Rudy Rucker's Infinity and the Mind prompted me to ask this question.
"I started having ideas for it in that most Sixties of years, 1972."
On the one hand I can understand how, for some people, the Sixties extended into the seventies. Check out the clothes and hair of, for example, Dave Arnott, Stu Brown, Virginia Trimble, Catherine Cesarsky, zuma-beach-73, http://astsun.astro.virginia.edu/~rtr/photos/pasadena/ .
On the other hand, I can understand how July 20, 1969 is a fitting end date for the Sixties.
Which Oct. 4 event?
Over the last 20 years, I haven't watched much TV, and I have seen only a handdful of Simpsons episodes. Was Homer talking about a real event.