Knowledge: 9-11 was an orchestrated terrorist attack that happened on September 11, 2001. On the other hand, the 1980s saw the emergence of dance music and new wave.

Conversation:
Do uo
I don't know what you mean, but there were several major trends and events in 1980s popular music.
Oh, so what happened?

Response: Well, the 1980s saw the emergence of dance music and new wave.