All good Americans know the significance of July 4, 1776 and December 7, 1941, but other than family birthdays and anniversaries, we boomers don’t have many of the dates of our own lifetimes memorized.
That said, just about every one of us knows two specific dates that have nothing to do with family milestones.
One is September 11, 2001.
The other is November 22, 1963. So long ago. So vivid still.