I started out in the class of 1966, but I accelerated and graduated with the class of 1965. So I get all kinds of news and reunion invitations for 1965, but nothing for 1966.
All my friends, classmates, pinochle buddies, the folks I hung out with in the lounge, went to the world's fair with, joined clubs with, all those folks were from the class of 1966. I know very few people from 1965.
1966 doesn't seem to exist.