The plane crashes into the WTC on 9/11/01? I was at my computer reading Free Republic.
I remember well the death of Roberto Clemente. My sister was murdered that same evening.
I also remember LBJ and Truman passing within weeks of each other. Armstrong walking on the moon (I was five and my older brother told me the world would explode if he touched his foot on the moon - I totally went bananas. My Mom laid a beating on my brother for that stunt).
Of course, Reagan and JPII getting shot. Challenger-I was in Contracts class in my first year of law school when class was interrupted with the news. Berlin Wall, et al.
I was too far from base to get American Forces TV, but by a quirk of nature/atmospherics, I heard of his death at 3-4 AM on the radio.
I called a friend across the river the next morning, and he confirmed it. After work, I stopped by his place, and we talked about it while he had Beatles albums playing. His German wife thought we were nuts.
Same with me. Certainly will never forget that day.
I was 3 1/2 when Kennedy was killed. Oddly, I remember the funeral more than the event. I remember watching the cannons and drums, as my Mom was crying.
I remember the day Nixon announced he would resign. I was in the lobby of a local Junior College.
For some reason, I remember the moment I heard on the radio that John Lennon had been killed. I was in the car driving to my new girl friend's house.
Challenger was another... I was at work, watching the launch on TV during lunch. The stock market crach on October 19, 1987 is another. I got laid off from work that day (Plant was sold, all of us let go).... Just got in my car and turned on the radio, "That's the NEWS of the day, the Dow is down 550 points at lunchtime". THAT was a flashbulb day!