Today is the anniversary of the 9/11 attacks on the World Trade Center. I still remember it, being an 8th grader at the time and sitting at my desk in Algebra, thinking it was all some kind of preview for a movie... something that wasn't real. The enormity of what had happened did not sink into my mind for a long time after.
September 11 is also his birthday. He doesn't know that I remember his birthday, but I remember dates all the time, so that is another thing I think of when I think of today.